Top Software Developers in Seattle
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Featured
What are Featured Providers?
$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+$25 - $49 / hr1,000 - 9,999Serves Seattle, WAServices provided
See all 86 projectsSimform is a full stack software development company renowned for bespoke software development, custom software creation, and end-to-end software engineering. With approximately 90% positive feedback, clients commend Simform for its technical expertise, proactive communication, and seamless project management. Reviewers consistently highlight the company's ability to integrate with client teams and its commitment to long-term, sustainable solutions.
$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 distinguished company specializing in tailored and full-stack software development services, with a strong emphasis on AI-driven solutions and custom software creation. The overall sentiment in reviews is overwhelmingly positive, with notable praise for their exceptional communication, timely delivery, and ability to integrate seamlessly with client teams. Approximately 90% of reviewers highlighted Empat's technical expertise and their proactive approach to project collaboration.
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UndisclosedUndisclosed10 - 49Seattle, WA
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Solid State Pros is a branding firm. They offer Branding and Web Design and were established in 2014. The firm is based in Seattle, Washington.
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UndisclosedUndisclosed10 - 49Bothell, WA
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IT strategy consulting company Innovative Edge TCS is in Bothell, Washington. Founded in 2015, the team focuses on IT strategy consulting and BI & big data consulting & SI.
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Featured
What are Featured Providers?
$50,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 37 projectsDreamix is a custom software development company specializing in tailored software development and end-to-end software solutions. The company consistently receives positive feedback, with 100% of reviewers praising their engineering expertise, proactive communication, and ability to deliver high-quality projects on time. Additionally, 75% of reviewers highlight Dreamix's strong cultural fit and alignment with client values.
$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 22 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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$1,000+$100 - $149 / hr2 - 9Maple Valley, WA
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Launched in 2026, Fourth Crossing Systems, a small software development company, is headquartered in Maple Valley, Washington. Their team provides Custom Software Development and Web Development.
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UndisclosedUndisclosed50 - 249Bellevue, WA
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Mavensoft Technologies is an IT strategy consulting company. The Alpharetta, Georgia-based team focuses on IT strategy consulting and cloud consulting & SI.
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UndisclosedUndisclosed50 - 249Newcastle, WA
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Vidyatech is a midsize Cybersecurity company located in Vancouver, Canada and Newcastle, Washington. The team offers Cybersecurity and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Gig Harbor, WA
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Ataira Analytics Inc. Is a small big data company launched in 2015. Their team provides BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9Seattle, WA
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Dynamo Plus is a Business Consulting company launched in 2013. The company offers Business Consulting and Marketing Strategy, and is small.
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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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UndisclosedUndisclosed10 - 49Sammamish, WA
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InSynchro Group of Companies is a small Sammamish, Washington-based IT staff augmentation company. The team offers IT staff augmentation and Custom Software Development.
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UndisclosedUndisclosed10 - 49Seattle, WA
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Established in 2011, Spiderbox Design is a social media marketing company. The firm offers Social Media Marketing and Web Design.
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Featured
What are Featured Providers?
$10,000+$25 - $49 / hr10 - 49Serves Seattle, WAServices provided
See all 33 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 55 projectsRubyroid Labs is a bespoke software development company specializing in custom software creation and full-stack software development. Across various projects, clients consistently praised their effective communication, attention to detail, and ability to deliver on time and within budget. Approximately 80% of reviews highlight their strong project management and problem-solving skills, indicating a high level of client satisfaction.
$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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$10,000+$100 - $149 / hr2 - 9Kirkland, WA
Services provided
Clocktower Media is a custom software development company. Launched in 1999, the agency is in Kirkland, Washington. Their services include Custom Software Development and Web Development.
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Undisclosed$25 - $49 / hr2 - 9Parkland, WA
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Elevate Digital is a small software development company. Founded in 2025, the team specializes in Custom Software Development and Web Development.
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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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UndisclosedUndisclosed10 - 49Tacoma, WA
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Prime Consulting Inc is an Email Marketing company. Based in Tacoma, Washington, their small team focuses on Email Marketing and cloud consulting & SI. The firm was established in 2015.
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UndisclosedUndisclosed10 - 49Tacoma, WA
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Business intelligence company NETWORG is headquartered in Warsaw, North Carolina and Tacoma, Washington. They offer BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Lakewood, WA
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Custom software development company Rev Consulting LLC was founded in 2011. The firm offers Custom Software Development and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Federal Way, WA
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Karma Consulting, Inc. Is an UX design agency. They are in Federal Way, Washington. Their team provides UX/UI Design and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9Lake Stevens, WA
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Custom Websites by Webvisuals, a software development company, was launched in 2002. The team provides Custom Software Development and Branding.
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UndisclosedUndisclosedFreelancerEverett, WA
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Mystic Engineering / Mystic Industries is a small Product Design company located in Everett, Washington. Their services include Product Design and Custom Software Development.
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UndisclosedUndisclosed2 - 9Kent, WA
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Vibotek LLC is a Kent, Washington-based IT strategy consulting company. The team focuses on IT strategy consulting and Application Testing.
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$10,000+$100 - $149 / hr10 - 49Bellevue, WA
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See all 1 projectsSeattle Software Developers is a UX/UI design company known for improving user experiences and interfaces. The reviews highlight their ability to decrease customer support requests by 25% and increase user engagement by 30%. Most reviewers commend their user-centered design approach and project management, with a suggestion for more collaborative brainstorming sessions. Overall, feedback is overwhelmingly positive.
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UndisclosedUndisclosed2 - 9Olympia, WA
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Triceratops Technology Resources is a small IT strategy consulting company. They focus on IT strategy consulting and BI & big data consulting & SI and were launched in 2018.
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$5,000+$100 - $149 / hrFreelancerSeattle, WA
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On The Brink Designs, a small web design agency, is in Seattle, Washington. The team provides Web Design and IT strategy consulting.
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UndisclosedUndisclosed2 - 9Seattle, WA
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MyWorks Design is a web design company. Headquartered in Fort Worth, Texas and Seattle, Washington, the agency was founded in 2010. Their services include Web Design and Custom Software Development.
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UndisclosedUndisclosed2 - 9Tacoma, WA
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Pi Development, a software development company, is in Tacoma, Washington. Launched in 2013, the team offers Custom Software Development and Web Development.
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UndisclosedUndisclosed10 - 49Bellevue, WA
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Abasys Technologies Inc is a software development firm. Located in Bellevue, Washington, the firm was founded in 1987. Their services include Custom Software Development and Blockchain.
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UndisclosedUndisclosed10 - 49Bellevue, WA
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SSIR Solutions, a software development firm, was established in 2022. The team specializes in Custom Software Development and Web Development.
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UndisclosedUndisclosed2 - 9Olympia, WA
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Paragon Works is a web design agency. They specialize in Web Design and Custom Software Development and are in Olympia, Washington.
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UndisclosedUndisclosed2 - 9Redmond, WA
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Yoctocode, LLC is a Redmond, Washington-based software development company. Established in 2015, the team offers Custom Software Development and UX/UI Design.
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UndisclosedUndisclosedFreelancerTacoma, WA
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Established in 2001, Matthew Fleming Inc. Is a small Tacoma, Washington-based software development company. Their team specializes in Custom Software Development and E-Commerce Development.
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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 -
$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 -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
37.3/40.018/20 Reviews10/10 Clients & Experience9.3/10 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 -
$10,000+$150 - $199 / hr10 - 49Medina, WA
Ability to deliver
36/40.018.2/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
20% Custom Software Development80% 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 -
$25,000+Undisclosed10 - 49Seattle, WA
Ability to deliver
36.9/40.017.6/20 Reviews10/10 Clients & Experience9.3/10 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
35.6/40.016.2/20 Reviews10/10 Clients & Experience9.4/10 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+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
35.2/40.017/20 Reviews10/10 Clients & Experience8.2/10 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
34.5/40.016/20 Reviews10/10 Clients & Experience8.5/10 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
32.9/40.016/20 Reviews8.6/10 Clients & Experience8.3/10 Market PresenceService focus
10% Custom Software Development90% Other -
$1,000+$25 - $49 / hr50 - 249Seattle, WA
Ability to deliver
32.6/40.018.8/20 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
26.5/40.018.2/20 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
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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.