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 100 projectsVention is a bespoke software development company specializing in full-stack software development and managed software development services. Across various reviews, clients commend Vention for their seamless integration, prompt delivery, and strategic project management. Approximately 90% of reviews highlight their excellent communication and ability to act as an extension of their client's teams, reflecting a strong culture fit and reliable service delivery.
$25,000+$25 - $49 / hr1,000 - 9,999Serves Seattle, WAServices provided
See all 84 projectsSimform is a custom software development company known for its end-to-end software engineering services, providing tailored solutions with expertise in full-stack development, including Python and JavaScript. They receive predominantly positive feedback, with approximately 90% of reviews highlighting their responsiveness, technical expertise, and timely delivery. However, some clients noted challenges with scope management and transparency in communication regarding project timelines and billing practices.
$10,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 147 projectsEmpat is a bespoke software development company specializing in tailored software solutions, full-stack software development, and end-to-end software engineering. Across various projects, 100% of reviews highlight their exceptional project management, technical expertise, and attention to detail. Clients commend Empat for timely delivery, responsiveness, and their ability to create solutions that enhance operational efficiency and user experience.
$25,000+$25 - $49 / hr50 - 249Serves Seattle, WAServices provided
See all 118 projectsTechAhead is a distinguished company specializing in Custom Software Development, offering solutions in mobile and web applications, CMS, and IoT firmware. With an impressive track record, approximately 90% of clients express satisfaction with their software engineering and project management capabilities. Clients frequently praise their responsive communication and tailored software development expertise.
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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+$50 - $99 / hr1,000 - 9,999Serves Seattle, WAServices provided
See all 100 projectsVention is a bespoke software development company specializing in full-stack software development and managed software development services. Across various reviews, clients commend Vention for their seamless integration, prompt delivery, and strategic project management. Approximately 90% of reviews highlight their excellent communication and ability to act as an extension of their client's teams, reflecting a strong culture fit and reliable service delivery.
$50,000+$25 - $49 / hr50 - 249Serves Seattle, WAServices provided
See all 12 projectsElaniin is a Custom Software Development company recognized for its expertise in tailored software solutions and full-stack development. The majority of reviews, approximately 90%, highlight their strong technical skills, excellent communication, and flexibility. Clients appreciate their ability to understand complex requirements and deliver quality outcomes, though some suggest longer timelines could improve project management.
$25,000+$25 - $49 / hr50 - 249Serves Seattle, WAServices provided
See all 30 projectsWeSoftYou is a Custom Software Development company specializing in tailored and full-stack software development services. Their reviews highlight a 100% satisfaction rate, with clients praising their dedication, innovative solutions, and efficient project management. Approximately 85% of reviewers commend their ability to deliver user-centric, scalable solutions on time, while 90% emphasize their seamless communication and responsiveness to client needs.
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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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$10,000+$100 - $149 / hr2 - 9Kirkland, WA
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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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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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Featured
What are Featured Providers?
$25,000+$150 - $199 / hr10 - 49Serves Seattle, WAServices provided
See all 19 projectsIron Forge Development is a custom software development company specializing in tailored software creation and full-stack software development. Reviews suggest they have a flexible and scalable approach, with 83% of feedback highlighting their adaptability and communication. However, 17% noted room for improvement in project management and scoping. Clients commend their ability to deliver complex solutions, manage end-to-end projects, and effectively meet evolving needs.
$25,000+$50 - $99 / hr250 - 999Serves Seattle, WAServices provided
See all 51 projectsFuture Processing is a custom software development company specializing in tailored, end-to-end software development services. Their clients consistently praise them for delivering high-quality solutions on time and demonstrating exceptional flexibility and communication skills. Over 90% of reviews highlight the company's strong cultural fit and alignment with client needs, while 80% commend their technical expertise and agile project management.
$10,000+$50 - $99 / hr50 - 249Serves Seattle, WAServices provided
See all 55 projectsRubyroid Labs is a Custom Software Development company with a strong focus on tailored software and full-stack development. They are highly praised for their proactive communication and problem-solving skills, with 100% of reviews mentioning their timely delivery and excellent project management. Clients appreciate their ability to integrate seamlessly with existing teams, as noted by 80% of reviewers.
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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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Featured
What are Featured Providers?
$10,000+$25 - $49 / hr10 - 49Serves Seattle, WAServices provided
See all 29 projectsOlearis is a custom software development company specializing in tailored software development and full-stack solutions. Reviews highlight their strong project management, timely delivery, and exceptional quality assurance. They receive praise for their expertise in both mobile and web applications, with 83% of reviewers noting their impressive communication and collaboration. However, 17% report dissatisfaction due to unmet expectations and project delays.
$25,000+$50 - $99 / hr10 - 49Serves Seattle, WAServices provided
See all 37 projectsCalibrate Software is a bespoke software development company that excels in custom software creation, providing tailored solutions in various industries. Reviews highlight their strong project management, responsiveness, and excellent communication, with 100% positive feedback on collaboration and adaptability. Clients appreciate their innovative approach and commitment to customer success, though timelines occasionally exceed initial estimates.
$5,000+$50 - $99 / hr10 - 49Serves Seattle, WAServices provided
See all 17 projectsSemaphore Mobile is a custom software development company specializing in tailored software solutions, including mobile apps and full-stack development across various platforms. Reviews indicate a 100% positive feedback rate, highlighting their professional project management, effective communication, and ability to understand and execute clients’ visions. Clients consistently praise their dedication, high-quality deliverables, and strong alignment with project goals.
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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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Featured
What are Featured Providers?
$10,000+$50 - $99 / hr250 - 999Serves Seattle, WAServices provided
See all 32 projectsScalo is a custom software development company specializing in tailored software solutions and full-stack software development. The company boasts high levels of customer satisfaction, with over 85% of reviews highlighting their strong technical expertise, seamless project management, and effective communication. Clients frequently praise Scalo's ability to deliver high-quality, stable software while meeting project timelines and maintaining responsiveness and transparency.
$10,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 68 projectseSparkBiz is a Custom Software Development company specializing in tailored and full-stack software development solutions. The company's reviews are overwhelmingly positive, with clients praising their project management, timeliness, and impressive technical capabilities. Approximately 90% of reviewers commend eSparkBiz for their responsive communication and ability to integrate seamlessly with client teams. Several clients highlight the company's excellent value for cost and cultural alignment.
$25,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 53 projectsCodeNinja is a distinguished company in the Custom Software Development sector, excelling in bespoke software creation and full-stack software development. Reviews reveal a 100% positive feedback rate, with CodeNinja lauded for its effective project management and ability to adapt to client needs. Notably, 80% of clients highlight their impressive responsiveness and customization capabilities, underscoring CodeNinja's commitment to delivering tailored, end-to-end software solutions.
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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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$5,000+$50 - $99 / hr10 - 49Marysville, WA
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See all 6 projectsHybrid Mediaworks specializes in Bespoke Software Development, providing tailored software solutions such as custom app development and CS Dev. Their reviews highlight exceptional responsiveness, effective project management, and a strong ability to adapt and innovate. Clients appreciate their ability to transform complex ideas into user-friendly applications, resulting in high satisfaction and successful outcomes.
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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 -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Custom Software Development50% 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 -
$5,000+$100 - $149 / hr50 - 249Seattle, WA
Ability to deliver
38.6/40.020/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
10% Custom Software Development90% 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 -
$10,000+$150 - $199 / hr10 - 49Medina, WA
Ability to deliver
35.9/40.018.2/20 Reviews10/10 Clients & Experience7.7/10 Market PresenceService focus
20% Custom Software Development80% Other -
$5,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
35.5/40.017/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$150 - $199 / hr10 - 49Seattle, WA
Ability to deliver
37.1/40.017.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$25 - $49 / hr250 - 999Kirkland, WA
Ability to deliver
35.6/40.016.2/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$150 - $199 / hr10 - 49Seattle, WA
Ability to deliver
35.8/40.016.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
15% Custom Software Development85% Other -
$50,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
35.9/40.017.6/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
35.8/40.016.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Custom Software Development90% 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
33.2/40.016.6/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
30% Custom Software Development70% Other -
$5,000+$50 - $99 / hr250 - 999Kirkland, WA
Ability to deliver
34.4/40.017.2/20 Reviews9.4/10 Clients & Experience7.8/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$100 - $149 / hr2 - 9Edmonds, WA
Ability to deliver
34.7/40.016.2/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
15% Custom Software Development85% Other -
$25,000+$25 - $49 / hr50 - 249Seattle, WA
Ability to deliver
34.2/40.019/20 Reviews8/10 Clients & Experience7.2/10 Market PresenceService focus
10% Custom Software Development90% Other -
$1,000+$25 - $49 / hr50 - 249Seattle, WA
Ability to deliver
31/40.017/20 Reviews9.5/10 Clients & Experience4.6/10 Market PresenceService focus
20% Custom Software Development80% 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 -
$25,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
29.7/40.017.2/20 Reviews6.1/10 Clients & Experience6.4/10 Market PresenceService focus
25% Custom Software Development75% Other -
$5,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
31.6/40.017.2/20 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 -
$1,000+< $25 / 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
22.9/40.015.2/20 Reviews1.9/10 Clients & Experience5.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$50,000+$100 - $149 / hr10 - 49Seattle, WA
Ability to deliver
25.4/40.017/20 Reviews3.8/10 Clients & Experience4.6/10 Market PresenceService focus
20% Custom Software Development80% 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
Latest Software Developers Articles
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Why is Sustainable Architecture a Non-Negotiable Asset?
This article explores the gap between rapid development and sustainable architecture and why long-term success still depends on solid engineering fundamentals.
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.