Top Software Developers in Seattle
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Top Software Development Companies
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Featured
What are Featured Providers?
$10,000+$150 - $199 / hr10 - 49Serves Seattle, WAServices provided
See all 14 projectsKingsmen Digital Ventures is a distinguished firm specializing in Custom Software Development, offering services across tailored, bespoke, and full-stack software development. The company consistently receives high praise, with approximately 100% of reviewers highlighting their competence, timely delivery, and high-quality output. Clients commend their expertise in managing complex projects, enhancing business efficiency, and providing innovative, end-to-end software solutions.
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$25,000+$50 - $99 / hr10 - 49Seattle, WA
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See all 36 projectsBilberrry is a versatile software development company specializing in bespoke and custom software creation. Their services are highly praised, with reviews frequently highlighting their technical expertise, strong project management, and ability to deliver on time. Approximately 95% of the feedback is positive, with clients citing their strategic thinking and collaborative approach as standout qualities. Notably, around 80% of reviewers commend their responsive communication and tailored solutions.
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$5,000+$150 - $199 / hr10 - 49Serves Seattle, WA
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See all 33 projectsSembit is a Custom Software Development company renowned for its tailored software solutions and end-to-end services. With a strong focus on communication and timely delivery, 100% of reviewers commend Sembit's responsiveness and ability to execute projects effectively. Clients particularly value Sembit's proactive project management and alignment with company values, highlighting their expertise in bespoke software development and full-stack solutions.
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Featured
What are Featured Providers?
$25,000+$25 - $49 / hr1,000 - 9,999Serves Seattle, WAServices provided
See all 88 projectsSimform is a comprehensive software development company specializing in custom software creation, tailored software development, and full-stack software development. Client feedback indicates a 100% satisfaction rate, highlighting their proactive communication, technical expertise, and commitment to long-term solutions. Reviewers frequently mention their ability to integrate seamlessly with existing teams and deliver projects on time and within budget, with 80% acknowledging their adaptability and strategic partnership.
$25,000+$150 - $199 / hr10 - 49Serves Seattle, WAServices provided
See all 22 projectsTwin Sun is a Custom Software Creation company specializing in bespoke and full-stack software development services. Known for exceptional project management and communication, 100% of reviewers expressed satisfaction with their timelines and transparency. Impressively, 95% of clients highlighted successful project outcomes, emphasizing the company's technical expertise and ability to deliver high ROI solutions within budget.
$10,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 149 projectsEmpat is a bespoke software development company with a strong focus on intelligent automation, AI systems, and custom software engineering across various industries. Reviews highlight their exceptional technical expertise and proactive collaboration, with 100% of clients noting their ability to deliver tailored solutions on time and within budget. Their strong communication and commitment to understanding business needs make them a trusted partner in software development projects.
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$50,000+$50 - $99 / hr250 - 999Seattle, WA
Services provided
See all 44 projectsJelvix is a bespoke software development company specializing in custom software creation and complex system integrations. Reviews indicate a strong positive reception, with over 90% of feedback highlighting their technical expertise, particularly in healthcare and enterprise solutions. Clients appreciate Jelvix’s project management, adaptability, and communication, leading to transformative efficiency and operational improvements across various industries.
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$10,000+$150 - $199 / hr250 - 999Kent, WA
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See all 32 projectsCompassMSP is a Managed Software Development company that handles a comprehensive range of technical tasks including troubleshooting and maintenance. Review feedback indicates improved communication and enhanced safety measures, with approximately 100% of the feedback being positive about their project management and timely delivery.
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Featured
What are Featured Providers?
$50,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 38 projectsDreamix is a distinguished company specializing in Custom Software Development, demonstrating proficiency in tailored and full-stack software engineering. Across their reviews, 100% of clients commend their high-quality development, timely delivery, and excellent communication. Approximately 90% of reviewers highlight their cultural fit and proactive approach, while 85% appreciate their flexibility and alignment with client needs.
$50,000+$50 - $99 / hr1,000 - 9,999Serves Seattle, WAServices provided
See all 102 projectsVention is a full-stack software development company specializing in tailored and bespoke software development solutions. Across diverse projects, they have garnered positive feedback for their exceptional project management and communication skills, with over 90% of reviewers noting their ability to understand client needs and deliver timely solutions. Clients frequently highlight Vention's strong culture fit and collaborative approach.
$25,000+$150 - $199 / hr10 - 49Serves Seattle, WAServices provided
See all 23 projectsIron Forge Development is a custom software development company specializing in bespoke software creation and end-to-end software development. Across various reviews, 86% highlight their flexibility, strong project management, and ability to deliver tailored solutions promptly. However, one review noted delays in deliverables, suggesting room for improvement in project scheduling. Overall, they provide comprehensive software engineering services with a strong emphasis on client satisfaction.
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$50,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 45 projectsThirstySprout is a bespoke software development company specializing in custom software creation and managed software development. Their reviews reveal a 100% positive feedback rate, with clients consistently praising their proactive project management, timely delivery, and attention to detail. Over 50% of reviewers highlight ThirstySprout's ability to understand and anticipate specific business needs, ensuring scalable, future-ready solutions.
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$10,000+$150 - $199 / hr10 - 49Medina, WA
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See all 30 projectsFlower Press Interactive is a custom software development firm specializing in tailored software development and full stack software development. The company receives overwhelmingly positive feedback, with clients praising their strong communication, thoroughness in addressing project phases, and ability to improve on client ideas. Approximately 100% of reviewers highlight their collaborative approach and high-quality delivery, making them a reliable partner for bespoke software development projects.
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$25,000+$150 - $199 / hr10 - 49Seattle, WA
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See all 15 projectsUpTop is a custom software development company specializing in UI/UX design, frontend development, and mobile app creation, with a strong emphasis on bespoke and end-to-end software engineering. Overall, client reviews highlight UpTop's consistent project management, flexibility, and integration capabilities, with 100% of reviewers noting their impressive adaptability and collaborative approach.
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$25,000+$25 - $49 / hr50 - 249Seattle, WA
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See all 22 projectsTecla is a custom software development company that excels in providing tailored software solutions and competent resources for web and software projects. With a strong emphasis on cultural fit and alignment, Tecla received 100% positive feedback for their effective project management and high-quality talent pool, resulting in significant operational improvements and seamless team integration across time zones.
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$25,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 6 projectsDevblock / Db_studio is a custom software development company known for its expertise in end-to-end software development and software engineering. Reviews highlight their reliability, high-quality work, and effective project management, with 100% of reviewers expressing satisfaction with their performance. Clients specifically commend their ability to deliver solutions on time and within budget, and their proactive approach to learning new technologies.
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Featured
What are Featured Providers?
$50,000+$25 - $49 / hr50 - 249Serves Seattle, WAServices provided
See all 16 projectsMetaProject is a custom software development company specializing in tailored and bespoke software solutions, with a strong focus on full-cycle and end-to-end software development. Across reviews, 100% of clients praised their technical expertise and business-first mindset. The company consistently delivers projects on time, with 100% of reviews highlighting their excellent project management and responsiveness, making them a reliable partner for complex software projects.
$5,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 6 projectsAress Software is a Custom Software Creation company specializing in tailored software development and end-to-end solutions. Reviews highlight their expertise in software engineering, with 100% positive feedback commending their agile project management, strategic partnership approach, and technical acumen. Notably, 75% of reviews emphasized their proactive and communicative team culture, contributing to significant performance improvements for clients.
$25,000+$50 - $99 / hr250 - 999Serves Seattle, WAServices provided
See all 51 projectsFuture Processing is a custom software development company specializing in bespoke software creation and full-stack software development. Reviews highlight their exceptional adaptability to clients’ needs, proactive project management, and high-quality deliverables, with approximately 85% of feedback being positive. Clients consistently praise their technical proficiency, cultural fit, and ability to integrate seamlessly with internal teams.
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$1,000+$25 - $49 / hr50 - 249Seattle, WA
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See all 10 projectsNTSprint LLC is a custom software creation company specializing in full-stack and end-to-end software development. The reviews consistently highlight their professionalism, timely delivery, and the high quality of their bespoke software engineering services. Clients report significant improvements in project outcomes, with an overwhelming 100% satisfaction rate, praising their effective communication and ability to manage complex projects efficiently.
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$10,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 39 projectsSoftDoes is a custom software development company specializing in tailored and end-to-end software engineering solutions. Across reviews, 100% of clients express satisfaction with SoftDoes's project management and delivery on time, emphasizing their practical approach to problem-solving and user-centric design. Approximately 85% of reviewers highlight the company’s ability to simplify complex processes and deliver valuable, user-friendly applications.
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Featured
What are Featured Providers?
$10,000+$25 - $49 / hr10 - 49Serves Seattle, WAServices provided
See all 34 projectsOlearis is a Custom Software Development company offering Full Stack Software Development and Bespoke Software Development services. With approximately 80% of reviews highlighting their exceptional project management and rapid progress, clients praise their professionalism and dedication to collaborative partnerships. However, one review raises concerns about project delivery and communication, while 20% of reviews report issues with project completion and adherence to specifications.
$10,000+$50 - $99 / hr50 - 249Serves Seattle, WAServices provided
See all 56 projectsRubyroid Labs is a bespoke software development company that excels in customized software creation, particularly using Ruby on Rails. With a 100% positive feedback rate across client reviews, they are praised for their technical expertise, proactive communication, and reliable project management. Approximately 80% of reviewers highlight their ability to deliver tailored solutions on time and within budget.
$25,000+$50 - $99 / hr10 - 49Serves Seattle, WAServices provided
See all 39 projectsCalibrate Software is a Custom Software Development company known for its end-to-end software development services, including tailored software development and custom software creation. Across various reviews, clients consistently praise Calibrate Software for their professionalism, responsiveness, and ability to meet timelines, with approximately 100% of reviewers highlighting their strong project management and excellent communication.
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$50,000+$100 - $149 / hr10 - 49Seattle, WA
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See all 5 projectsNew Normal is a bespoke software development company that specializes in tailored software creation and full stack software development. Garnering a high level of satisfaction, with over 90% of feedback being positive, clients commend their adaptability, communication, and innovative problem-solving skills. Their expertise in software engineering has proven instrumental in diverse sectors, leading to successful project outcomes across various industries.
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$5,000+Undisclosed1,000 - 9,999Seattle, WA
Services provided
Insight Global is a custom software development company. The Atlanta, Georgia-based company offers Custom Software Development and Artificial Intelligence.
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Featured
What are Featured Providers?
$25,000+$25 - $49 / hr10 - 49Serves Seattle, WAServices provided
See all 11 projectsCodeBranch is a custom software development company offering tailored and full-stack software solutions. Across their reviews, they are praised for their effective project management, responsiveness, and alignment with client values. Notably, 100% of the reviews highlight their impressive culture and ability to integrate as true business partners, with 71% specifically commending their proactive communication and problem-solving approach.
$25,000+$50 - $99 / hr10 - 49Serves Seattle, WAServices provided
See all 12 projectsVeryCreatives - SaaS Development is a reputable custom software development company specializing in bespoke software creation and full-stack software development services. They consistently deliver projects on time and within budget, with 100% of reviews praising their project management and responsiveness. Clients highlight their proactive approach, strong technical expertise, and ability to understand and align with business goals, making them a preferred partner for custom software needs.
$10,000+Undisclosed50 - 249Serves Seattle, WAServices provided
See all 90 projectsAirdev is a custom software development company specializing in tailored software creation, offering services from MVP development to complete, scalable applications. Feedback from clients is overwhelmingly positive, with 100% satisfaction, highlighting Airdev's exceptional project management, timely delivery, and client-focused approach. Many reviewers (approximately 80%) commend Airdev for their communication, responsiveness, and ability to deliver high-quality, user-friendly solutions that meet client specifications and budget constraints.
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$25,000+$150 - $199 / hr10 - 49Seattle, WA
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See all 3 projectsBase Two is a proficient e-commerce platform and digital marketing support company, specializing in creating scalable systems and HTML5 animated banners. With around 95% positive feedback, clients commend their strong project management, innovative solutions, and technical expertise. Approximately 80% of reviewers highlight improvements in system performance and user experience, underscoring Base Two's effectiveness in enhancing operational efficiency.
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$50,000+$100 - $149 / hr50 - 249Seattle, WA
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Janea Systems is an artificial intelligence company. Their team is located in Seattle, Washington. The firm provides Artificial Intelligence and BI & big data consulting & SI.
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$10,000+$100 - $149 / hr250 - 999Bellevue, WA
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See all 13 projectsAffirma Consulting is a versatile IT consulting firm specializing in tailored software development and end-to-end solutions, including SharePoint development and custom software creation. Reviews highlight their adaptability, effective communication, and project management, with a 100% satisfaction rate and positive feedback on their ability to address client needs efficiently. Approximately 75% of reviewers commend their responsiveness and problem-solving skills.
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$50,000+$100 - $149 / hr10 - 49Seattle, WA
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See all 1 projectsATOMICUS is a bespoke software development company known for its expertise in scientific and research applications, particularly in physics and data visualization. Reviewers unanimously commend its ability to meet industry standards and deliver high-quality services promptly, noting the unique scientific expertise that distinguishes it from competitors.
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$25,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 35 projectsMobcoder is a Custom Software Development company that excels in creating tailored software solutions. With a focus on full stack and end-to-end development, they consistently deliver projects on time and exceed expectations. Approximately 90% of reviews highlight their strong project management and technical capabilities, while 80% commend their flexibility and commitment to meeting client needs.
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$5,000+$50 - $99 / hr10 - 49Seattle, WA
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See all 19 projectsSlashdev is a bespoke software development firm specializing in tailored software creation, with a focus on full-stack software development and custom solutions. The company has received overwhelmingly positive feedback, with reviewers praising its quick responsiveness, flexibility, and cost-effective pricing. Approximately 100% of the feedback highlights their ability to deliver skilled developers promptly, emphasizing their impressive project turnaround and attention to detail.
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$10,000+$150 - $199 / hr10,000+Bellevue, WA
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See all 9 projectsBeyondsoft Consulting Inc. is a seasoned provider of bespoke software development and architecture design consultancy, specializing in tailored solutions like Adobe Experience Manager and AWS automation. Clients appreciate their deep technical expertise and open communication, with 100% of reviews noting impressive knowledge transfer and collaboration. While project management requires client engagement, Beyondsoft consistently delivers high-quality results, significantly reducing manual labor and enhancing client capabilities.
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$25,000+$100 - $149 / hr2 - 9Seattle, WA
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See all 9 projectsLunarbyte.io is a bespoke software development company specializing in custom software creation and full-stack development. Their reviews reflect a high level of client satisfaction, with 100% positive feedback on their adaptability, communication, and project management. Clients appreciate their ability to integrate into existing teams and deliver scalable, efficient solutions tailored to specific business needs.
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$5,000+$50 - $99 / hr250 - 999Kirkland, WA
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See all 36 projectsUKAD is a bespoke software development company specializing in custom software creation and full-stack software development. Across numerous reviews, 100% of clients commend their technical expertise, seamless communication, and project management. Clients appreciate UKAD's ability to understand project needs profoundly, with 90% highlighting their collaborative and adaptive approach as a key strength, while consistently delivering high-quality solutions.
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$25,000+$100 - $149 / hr2 - 9Edmonds, WA
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See all 21 projectsBlack Antelope is a bespoke software development company praised for its high level of technical skill, personalized approach, and efficiency in project timelines. Around 75% of reviewers highlight the team's competence and exemplary communication. While feedback is overwhelmingly positive, with about 90% satisfaction, some suggest improved reporting on cost overruns.
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$10,000+$50 - $99 / hr50 - 249Kirkland, WA
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See all 12 projectsAccelOne is a custom software development company specializing in tailored software development and end-to-end software engineering solutions. The company consistently receives positive reviews, with clients highlighting their adaptability, commitment, and high-quality deliverables. Approximately 95% of the reviews commend AccelOne's seamless integration with client teams and their responsive communication, while 80% note their expertise in delivering complex projects on time and within budget.
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$5,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 11 projectsInnova is a bespoke software development company offering tailored solutions, including end-to-end and full-stack software development. Across various reviews, 100% of clients commend Innova's technical expertise, timely delivery, and innovative problem-solving, with multiple reviewers highlighting their alignment with company values and budgetary constraints. Notably, they excel in integrating advanced functionalities and recovering significant client opportunities, with one client noting a 18–22% recovery of lost leads.
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UndisclosedUndisclosed50 - 249Seattle, WA
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See all 1 projectsSmashing Ideas is a creative agency specializing in mobile app development and interactive experiences. Overall feedback from reviews is positive, with clients highlighting their strong ability to generate innovative yet feasible ideas and execute them effectively. Approximately 70% of reviewers emphasize their creativity and execution skills, although some note initial weaknesses in Android development that have shown improvement.
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$25,000+$150 - $199 / hr2 - 9Seattle, WA
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See all 1 projectsNorthwest Independent Ruby Development is a Seattle-based software development company specializing in Ruby on Rails and HIPAA-compliant programs. They have a strong reputation for addressing complex development issues, as evidenced by their work on the Linehan Suicide Safety Net project. Reviewers consistently highlight their effective project management and ability to communicate technical details clearly, with 100% positive feedback on their collaboration skills and problem-solving capabilities.
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$10,000+$200 - $300 / hr2 - 9Seattle, WA
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See all 1 projectsMatey is a user experience design company that excels in app development, user journey, and website design. The feedback highlights their ability to deliver projects on time with impressive detail, with 100% of reviewers mentioning their alignment with company values and vision. The company is praised for understanding end goals without imposing personal agendas.
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$10,000+$25 - $49 / hr50 - 249Bellevue, WA
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See all 1 projectsVirtuosity Consulting is a consultancy firm specializing in providing program managers and developers to streamline release processes for enterprises. The company receives overwhelmingly positive feedback, with clients highlighting their ownership of projects, flexibility, and seamless integration as an extension of the team. Nearly all reviewers emphasize their excellent service quality and adaptability to changing demands.
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$10,000+$25 - $49 / hr10 - 49Lynnwood, WA
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See all 8 projectsTechlusion LLC is a custom software development company specializing in bespoke software creation and integration solutions. Their reviews highlight a 100% completion rate, increased client efficiency by 25%, and a strong focus on tailored client needs. The company is praised for its responsive project management and consistent delivery, with no areas identified for improvement.
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$5,000+$25 - $49 / hr50 - 249Seattle, WA
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See all 25 projectsElluminati is a Custom Software Development company known for delivering tailored solutions across various industries. With a strong focus on professional project management and exceptional customer service, 100% of reviewers highlight their effective communication and timely delivery. Their expertise in full-stack software development ensures high-quality outputs, as noted by clients who appreciate their professionalism and value for cost.
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$25,000+$50 - $99 / hr50 - 249Sammamish, WA
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See all 15 projectsMarkup Designs specializes in bespoke software development, including custom app development for bookkeeping and accounting. Client feedback highlights their strong technical skills, timely communication, and customer-centric approach. The company is praised for its organized project management and responsiveness, demonstrating a commitment to meeting client needs effectively.
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$5,000+$25 - $49 / hr10 - 49Bellevue, WA
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See all 3 projectsScalex Technology Solutions is a custom software development company specializing in tailored software development and software engineering. Reviews indicate a high level of satisfaction, with clients praising their professionalism, communication, and ability to deliver impactful solutions. Approximately 90% of reviewers highlight their effective project management and strong leadership, while a small percentage suggest improvements in project management resources.
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UndisclosedUndisclosed1,000 - 9,999Kingston, WA
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Room 8 Group, an app development firm, was founded in 2011. They specializes in Mobile App Development and Custom Software Development.
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$5,000+$25 - $49 / hr50 - 249Clyde Hill, WA
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See all 6 projectsGrowth Natives is a company specializing in bespoke and full-stack software development, with a focus on custom software creation and managed software development solutions. With positive feedback from 100% of reviewers, clients appreciate their consultative approach, swift communication, and creative problem-solving. Growth Natives consistently meet project expectations, though initially faced challenges with scope communication, later rectified.
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$10,000+$50 - $99 / hr10 - 49Seattle, WA
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See all 7 projectsDura Digital is a versatile digital services company specializing in Webflow development, UX design, and AI project prototyping. With a 100% on-time delivery rate and an impressive ability to adapt to changing project scopes, they are praised for their effective project management and culture fit. Approximately 98% of reviews highlight their prompt delivery, while their capacity to source niche talent and provide excellent value is frequently mentioned.
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$1,000+$100 - $149 / hr250 - 999Bellevue, WA
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See all 1 projectsNeighborsoft.team is a web development company specializing in creating digital platforms for investment firms. Their reviews highlight exceptional project management and a client-focused approach, with 100% positive feedback on their responsiveness and expertise. Clients appreciate their ability to simplify complex processes, demonstrating proficiency and patience throughout engagements.
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$25,000+$25 - $49 / hr10,000+Bellevue, WA
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See all 1 projectsPersistent Systems is a company specializing in low-code process management tools, web service development, and database work, primarily for the insurance industry. The feedback from reviews is overwhelmingly positive, with commendations for their flexibility, communication, and project management skills. Approximately 100% of the feedback highlights their adaptability and commitment to client success.
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$5,000+$50 - $99 / hr10 - 49Kirkland, WA
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See all 1 projectsITIRRA is a custom software development company with a focus on tailored and end-to-end software development solutions. The company receives predominantly positive feedback, with 100% of reviewers highlighting their proactive approach, ability to challenge scopes, and adherence to deadlines. Clients appreciate their competitive pricing and their expertise in offering strategic insights for product improvement.
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$10,000+$150 - $199 / hr10 - 49Seattle, WA
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See all 4 projectsAlly is an accessibility consulting and website development firm known for its expertise in delivering WCAG-compliant solutions. Reviews highlight their impressive project management, thorough reports, and strong communication, with 100% of reviewers praising their reliability and consultative approach. Clients consistently commend Ally's flexibility, speedy execution, and alignment with client values, making them a recommended partner for accessibility audits and web development projects.
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$1,000+Undisclosed10 - 49Redmond, WA
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See all 4 projectsAstrabitLLC is a Custom Software Development company renowned for its strong technical depth and disciplined execution. Reviewers highlight their expertise in reverse engineering and modernizing legacy systems, with 100% positive feedback on their efficiency and ability to deliver scalable solutions. Clients appreciate their collaborative engagement and structured project management approach, although more proactive long-term recommendations could enhance their service.
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$1,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 2 projectsFive Quantum Bits is a bespoke software development firm specializing in full stack and end-to-end software development services. Reviewers report a 100% positive experience, praising their efficient project management and proactive, clear communication. Clients highlight the company's ability to deliver scalable and secure platforms, with 100% noting impressive growth metrics post-launch.
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$10,000+$150 - $199 / hr10 - 49Seattle, WA
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See all 6 projectsHelpful Human is a versatile software engineering firm offering a range of services including bespoke software development and web development. With a strong emphasis on communication and flexibility, they have been praised for their technical expertise and efficient project management. Approximately 90% of reviewers highlight their responsiveness and ability to adapt to changing needs, while noting some challenges in filling senior-level roles.
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$1,000+< $25 / hr10 - 49Newcastle, WA
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See all 2 projectsHyperBeans is a digital marketing firm specializing in pre- and post-launch strategies. Reviews highlight the company’s proactive approach and responsiveness, with 100% positive feedback on their ability to lead projects and communicate effectively. However, their stringent initial requirement processes may occasionally be seen as cumbersome.
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$25,000+$25 - $49 / hr2 - 9Seattle, WA
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See all 1 projectsCodble is a custom software development company specializing in tailored software development solutions. Reviewers consistently highlight the company's adept software engineering and project management skills, noting their responsiveness and dedication to client visions, with approximately 100% of feedback being positive. Codble is praised for its technical expertise, creating scalable platforms with robust functionality and seamless user experiences.
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UndisclosedUndisclosed250 - 999Seattle, WA
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See all 44 projectsStellar Elements specializes in Custom Software Development, offering tailored software solutions and full stack development services. Their reviews highlight a remarkable 100% satisfaction rate, emphasizing their exceptional project management and ability to surpass expectations. Approximately 80% of reviewers commend their ability to forge meaningful client relationships and deliver complex projects efficiently. With a focus on bespoke software development, they are highly recommended for their innovative and reliable services.
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$5,000+$25 - $49 / hr10,000+Seattle, WA
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Globant is a large web development firm. They offer Web Development and Custom Software Development and were founded in 2003.
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$1,000+$50 - $99 / hr50 - 249Seattle, WA
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ConnectPOS is a software development firm. They were founded in 2013 and specialize in Custom Software Development and Application Management & Support.
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$100,000+Undisclosed50 - 249Seattle, WA
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Launched in 2000, Carbon Five is a custom software development company. Their team specializes in Custom Software Development and Mobile App Development.
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$10,000+$150 - $199 / hr50 - 249Seattle, WA
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DMC, Inc., a custom software development firm, is based in Chicago, Illinois and Somerville, Massachusetts. The team provides Custom Software Development and CRM consulting and SI.
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List of the Top 15 Seattle Custom Software Development Companies
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$50,000+$50 - $99 / hr250 - 999Seattle, WA
Ability to deliver
38.9/40.020/20 Reviews9.1/10 Clients & Experience9.8/10 Market PresenceService focus
70% Custom Software Development30% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$150 - $199 / hr250 - 999Kent, WA
Ability to deliver
34.5/40.020/20 Reviews6.2/10 Clients & Experience8.2/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$100 - $149 / hr250 - 999Bellevue, WA
Ability to deliver
32.7/40.015.8/20 Reviews7.3/10 Clients & Experience9.6/10 Market PresenceService focus
35% Custom Software Development65% Other -
$50,000+$100 - $149 / hr10 - 49Seattle, WA
Ability to deliver
31.3/40.016.2/20 Reviews9.5/10 Clients & Experience5.6/10 Market PresenceService focus
60% Custom Software Development40% Other -
$50,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
36.9/40.018.6/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
10% Custom Software Development90% Other -
$10,000+$150 - $199 / hr10 - 49Medina, WA
Ability to deliver
35.4/40.017.6/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
36.6/40.017/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Custom Software Development90% Other -
$5,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
35.1/40.016.6/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$150 - $199 / hr10 - 49Seattle, WA
Ability to deliver
35.1/40.016.2/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
15% Custom Software Development85% Other -
$10,000+$150 - $199 / hr10,000+Bellevue, WA
Ability to deliver
32.6/40.015.2/20 Reviews10/10 Clients & Experience7.4/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$100 - $149 / hr2 - 9Seattle, WA
Ability to deliver
33/40.016.4/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
30% Custom Software Development70% Other -
$5,000+$50 - $99 / hr250 - 999Kirkland, WA
Ability to deliver
34.2/40.017/20 Reviews9.4/10 Clients & Experience7.8/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$25 - $49 / hr50 - 249Seattle, WA
Ability to deliver
35/40.019.8/20 Reviews8/10 Clients & Experience7.2/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$100 - $149 / hr2 - 9Edmonds, WA
Ability to deliver
33.7/40.016/20 Reviews10/10 Clients & Experience7.7/10 Market PresenceService focus
15% Custom Software Development85% Other -
$25,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
30.3/40.017.8/20 Reviews6.1/10 Clients & Experience6.4/10 Market PresenceService focus
25% Custom Software Development75% Other -
$10,000+$50 - $99 / hr50 - 249Kirkland, WA
Ability to deliver
32.7/40.016/20 Reviews8.6/10 Clients & Experience8.1/10 Market PresenceService focus
10% Custom Software Development90% Other -
$1,000+$25 - $49 / hr50 - 249Seattle, WA
Ability to deliver
32.2/40.018.4/20 Reviews9.3/10 Clients & Experience4.6/10 Market PresenceService focus
10% Custom Software Development90% Other -
$5,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
31/40.016.6/20 Reviews9.5/10 Clients & Experience4.9/10 Market PresenceService focus
10% Custom Software Development90% Other -
UndisclosedUndisclosed50 - 249Seattle, WA
Ability to deliver
30.8/40.016.2/20 Reviews8/10 Clients & Experience6.6/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$150 - $199 / hr2 - 9Seattle, WA
Ability to deliver
23.8/40.016.2/20 Reviews2.4/10 Clients & Experience5.2/10 Market PresenceService focus
65% Custom Software Development35% Other -
$10,000+$200 - $300 / hr2 - 9Seattle, WA
Ability to deliver
29.5/40.016.4/20 Reviews9.1/10 Clients & Experience4/10 Market PresenceService focus
10% Custom Software Development90% Other -
$10,000+$25 - $49 / hr50 - 249Bellevue, WA
Ability to deliver
25.8/40.016.2/20 Reviews3.1/10 Clients & Experience6.5/10 Market PresenceService focus
25% Custom Software Development75% Other -
$10,000+$25 - $49 / hr10 - 49Lynnwood, WA
Ability to deliver
26.1/40.017.8/20 Reviews3.7/10 Clients & Experience4.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
$5,000+$25 - $49 / hr50 - 249Seattle, WA
Ability to deliver
23.1/40.015.4/20 Reviews1.9/10 Clients & Experience5.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
26.8/40.020/20 Reviews1.4/10 Clients & Experience5.4/10 Market PresenceService focus
10% Custom Software Development90% Other -
$50,000+$100 - $149 / hr10 - 49Seattle, WA
Ability to deliver
25.2/40.016.8/20 Reviews3.8/10 Clients & Experience4.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$50 - $99 / hr50 - 249Sammamish, WA
Ability to deliver
25.7/40.017/20 Reviews2.6/10 Clients & Experience6.1/10 Market PresenceService focus
10% Custom Software Development90% Other -
$5,000+$25 - $49 / hr10 - 49Bellevue, WA
Ability to deliver
24.3/40.016.2/20 Reviews3.5/10 Clients & Experience4.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
UndisclosedUndisclosed1,000 - 9,999Kingston, WA
Ability to deliver
19.5/40.00/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Custom Software Development80% Other
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Top Software Development Agencies in Seattle
Seattle software firms design, build, test, and maintain custom applications. Typical services include:
- Product discovery and technical road-mapping
- UX/UI design and prototyping
- Web, mobile, and cloud-native development (often on AWS or Azure)
- QA automation and DevOps
- Post-launch support and feature expansion Many local agencies also provide staff augmentation, allowing Seattle’s Fortune 500s and startups alike to scale quickly without recruiting overhead.
Here are some reasons why you should hire a local Seattle-based software development agency:
- Proximity to major cloud platforms (AWS, Azure, Google Cloud Northwest) gives local teams early access to new services and regional data centers.
- The city’s mature startup ecosystem, such as Techstars Seattle and Madrona Venture Group, means agencies are comfortable iterating fast and working with VC-backed roadmaps.
- Pacific Time overlaps conveniently with both East Coast business hours and APAC engineering teams, streamlining distributed collaboration.
Rates vary by specialty and team size:
- Mid-level custom software work: $125–$175 per hour
- High-complexity cloud or AI projects: $175–$250+ per hour Fixed-scope MVPs typically start around $75,000, while long-term enterprise engagements can exceed $500,000. Many boutique studios offer phased billing or sprint-based contracts so you can control burn rate.
Seattle developers commonly work in:
- Cloud & SaaS
- E-commerce and retail tech
- Healthcare and digital health
- Fintech and payments
- Maritime logistics and supply chain
- Gaming and AR/VR (bolstered by the local indie-game scene)
Match expertise to your stack. For example, if you’re building on AWS Lambda, look for certified partners. Then you can follow these:
- Review Clutch case studies. Prior success in your industry often predicts smoother onboarding.
- Assess communication style. Schedule a technical deep-dive; strong agencies explain trade-offs clearly and propose realistic timelines.
- Check cultural fit. Seattle shops range from corporate consultancies to scrappy agile squads—pick the environment that aligns with your team culture.
Watch out for these red flags when hiring a Seattle software firm:
- One-size-fits-all proposals that ignore your existing architecture
- Limited local presence (e.g., sales office in Seattle but dev team entirely offshore without overlap hours)
- Inflexible IP terms that don’t assign code ownership to your company
- Over-promising senior talent but staffing junior engineers without notice If any of these appear during discovery, continue vetting other Seattle software development services.