Top Software Developers in Seattle
Global directory:
Top Software Development Companies
Nearby tech hubs:
Portland Software Developers | San Francisco Software Developers
Industry filter: Seattle Healthcare Software Development Agencies
-
Featured
What are Featured Providers?
$10,000+$150 - $199 / hr10 - 49Serves Seattle, WAServices provided
See all 12 projectsKingsmen Digital Ventures is a Custom Software Creation company specializing in tailored software development solutions. Their reviews consistently highlight their expertise in Software Development, with a 100% positive feedback rate regarding their ability to deliver on-time and exceed expectations. Approximately 80% of reviewers emphasize their exceptional project management and innovative approach.
$25,000+$25 - $49 / hr1,000 - 9,999Serves Seattle, WAServices provided
See all 86 projectsSimform is a custom software development company specializing in tailored software development and full-stack solutions. Across their reviews, 100% of clients commend their professionalism, responsiveness, and alignment with company values. Approximately 80% of reviewers highlight their ability to deliver projects on time and within budget, while about 90% appreciate their strategic partnership approach and technical expertise.
$10,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 146 projectsEmpat is a bespoke software development company specializing in AI-driven solutions, full-stack software engineering, and technical architecture. Across multiple reviews, 100% of clients praised their technical expertise, communication, and adaptability, emphasizing their ability to deliver scalable, efficient platforms on time. Approximately 90% of reviewers highlighted Empat’s capacity to integrate seamlessly into existing teams, enhancing productivity and innovation.
$50,000+$50 - $99 / hr1,000 - 9,999Serves Seattle, WAServices provided
See all 101 projectsVention is a custom software development firm known for its expertise in tailored software development and managed software development services. The company's reviews reflect a high level of client satisfaction, with 100% of feedback highlighting their strong team culture, effective communication, and reliable project management. Clients appreciate Vention's ability to act as true partners, delivering high-quality software engineering solutions with flexibility and dedication.
-
UndisclosedUndisclosed50 - 249Bellevue, WA
Services provided
Mavensoft Technologies is an IT strategy consulting company. The Alpharetta, Georgia-based team focuses on IT strategy consulting and cloud consulting & SI.
Read more -
UndisclosedUndisclosed50 - 249Newcastle, WA
Services provided
Vidyatech is a midsize Cybersecurity company located in Vancouver, Canada and Newcastle, Washington. The team offers Cybersecurity and cloud consulting & SI.
Read more -
Featured
What are Featured Providers?
$50,000+$25 - $49 / hr250 - 999Serves Seattle, WAServices provided
See all 35 projectsDreamix is a Custom Software Development company praised for its bespoke software solutions and exceptional engineering expertise. Reviews indicate a high level of customer satisfaction, with 100% of clients highlighting their project management skills and cultural fit. Clients commend Dreamix for delivering high-quality, tailored software on time and budget, often exceeding expectations.
$25,000+$150 - $199 / hr10 - 49Serves Seattle, WAServices provided
See all 21 projectsIron Forge Development is a Custom Software Creation company specializing in end-to-end software development services. Reviews highlight their flexibility, strategic thinking, and ability to deliver high-impact projects with a 100% positive feedback rate on their technical robustness, especially for handling complex projects with minimal input. However, some clients noted areas for improvement in project management and communication.
$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.
-
UndisclosedUndisclosed10 - 49Gig Harbor, WA
Services provided
Ataira Analytics Inc. Is a small big data company launched in 2015. Their team provides BI & big data consulting & SI and cloud consulting & SI.
Read more -
UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
Dynamo Plus is a Business Consulting company launched in 2013. The company offers Business Consulting and Marketing Strategy, and is small.
Read more -
UndisclosedUndisclosed10 - 49Sammamish, WA
Services provided
InSynchro Group of Companies is a small Sammamish, Washington-based IT staff augmentation company. The team offers IT staff augmentation and Custom Software Development.
Read more -
UndisclosedUndisclosed10 - 49Seattle, WA
Services provided
Established in 2011, Spiderbox Design is a social media marketing company. The firm offers Social Media Marketing and Web Design.
Read more -
$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.
Read more -
Featured
What are Featured Providers?
$25,000+$50 - $99 / hr250 - 999Serves Seattle, WAServices provided
See all 51 projectsFuture Processing is a bespoke software development company that excels in tailored and managed software solutions. They have consistently received positive feedback for their high-quality deliverables, with 100% of reviews highlighting their technical expertise, agile management, and strong cultural fit. Clients commend their adaptability and proactive collaboration, though some noted areas for improvement in project leadership.
$10,000+$25 - $49 / hr10 - 49Serves Seattle, WAServices provided
See all 31 projectsOlearis is a company specializing in Custom Software Development, delivering tailored software solutions across various platforms. Review feedback shows a 67% positive sentiment, highlighting their rapid delivery, high-quality development, and strong project management. However, 16% of reviews note issues with design integrity and project completion, indicating room for improvement in communication and client engagement.
$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.
-
Undisclosed$25 - $49 / hr2 - 9Parkland, WA
Services provided
Elevate Digital is a small software development company. Founded in 2025, the team specializes in Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Tacoma, WA
Services provided
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.
Read more -
Featured
What are Featured Providers?
$25,000+$50 - $99 / hr10 - 49Serves Seattle, WAServices provided
See all 39 projectsCalibrate Software is a custom software development company specializing in tailored and bespoke software solutions. According to their reviews, 100% of clients praise their professionalism, timely delivery, and responsiveness, with 75% highlighting their effective communication and adaptability. Clients appreciate the company’s strategic alignment with customer goals and their capability in end-to-end software development.
$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.
-
UndisclosedUndisclosed10 - 49Tacoma, WA
Services provided
Business intelligence company NETWORG is headquartered in Warsaw, North Carolina and Tacoma, Washington. They offer BI & big data consulting & SI and cloud consulting & SI.
Read more -
UndisclosedUndisclosed10 - 49Lakewood, WA
Services provided
Custom software development company Rev Consulting LLC was founded in 2011. The firm offers Custom Software Development and cloud consulting & SI.
Read more -
Featured
What are Featured Providers?
$10,000+Undisclosed50 - 249Serves Seattle, WAServices provided
See all 88 projectsAirdev is a prominent company specializing in bespoke software development, particularly in building MVPs and custom platforms. Reviews demonstrate a 100% positive feedback rate, highlighting their exceptional project management, effective communication, and timely delivery. Notably, approximately 90% of reviewers commend their ability to understand client needs and provide tailored solutions. Airdev's expertise in creating scalable, reliable, and user-friendly applications is consistently praised across reviews.
$10,000+$50 - $99 / hr250 - 999Serves Seattle, WAServices provided
See all 32 projectsScalo is a Custom Software Development company specializing in managed and bespoke software solutions, providing skilled software engineers for various industries. Reviews highlight a 90% satisfaction rate, praising their high-quality software development, strong technical expertise, responsive project management, and commitment to client needs. Approximately 80% of reviewers commend their cultural fit and value for cost.
$10,000+$25 - $49 / hr10 - 49Serves Seattle, WAServices provided
See all 35 projectsRedlab agency is a bespoke software development company specializing in full-stack and custom software creation. Reviewers consistently praise the agency's professionalism, initiative, and ability to deliver high-quality work on time. With 100% positive feedback, clients highlight Redlab's proactive project management, seamless communication, and partnership mindset, making them a reliable choice for complex and innovative projects.
-
UndisclosedUndisclosed10 - 49Federal Way, WA
Services provided
Karma Consulting, Inc. Is an UX design agency. They are in Federal Way, Washington. Their team provides UX/UI Design and cloud consulting & SI.
Read more -
UndisclosedUndisclosed2 - 9Lake Stevens, WA
Services provided
Custom Websites by Webvisuals, a software development company, was launched in 2002. The team provides Custom Software Development and Branding.
Read more -
UndisclosedUndisclosedFreelancerEverett, WA
Services provided
Mystic Engineering / Mystic Industries is a small Product Design company located in Everett, Washington. Their services include Product Design and Custom Software Development.
Read more -
UndisclosedUndisclosed2 - 9Kent, WA
Services provided
Vibotek LLC is a Kent, Washington-based IT strategy consulting company. The team focuses on IT strategy consulting and Application Testing.
Read more -
$10,000+$100 - $149 / hr10 - 49Bellevue, WA
Services provided
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.
-
UndisclosedUndisclosed2 - 9Olympia, WA
Services provided
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.
Read more -
$5,000+$100 - $149 / hrFreelancerSeattle, WA
Services provided
On The Brink Designs, a small web design agency, is in Seattle, Washington. The team provides Web Design and IT strategy consulting.
Read more -
UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
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.
Read more -
UndisclosedUndisclosed2 - 9Tacoma, WA
Services provided
Pi Development, a software development company, is in Tacoma, Washington. Launched in 2013, the team offers Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Bellevue, WA
Services provided
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.
Read more -
UndisclosedUndisclosed10 - 49Bellevue, WA
Services provided
SSIR Solutions, a software development firm, was established in 2022. The team specializes in Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed2 - 9Olympia, WA
Services provided
Paragon Works is a web design agency. They specialize in Web Design and Custom Software Development and are in Olympia, Washington.
Read more -
UndisclosedUndisclosed2 - 9Redmond, WA
Services provided
Yoctocode, LLC is a Redmond, Washington-based software development company. Established in 2015, the team offers Custom Software Development and UX/UI Design.
Read more -
UndisclosedUndisclosedFreelancerTacoma, WA
Services provided
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.
Read more
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 15 Seattle Custom Software Development Companies
-
$50,000+$50 - $99 / hr250 - 999Seattle, WA
Ability to deliver
38.7/40.019.8/20 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
37.3/40.018/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Custom Software Development50% Other -
$10,000+$150 - $199 / hr250 - 999Kent, WA
Ability to deliver
33.9/40.019.4/20 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 -
$25,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
37.2/40.017.6/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Custom Software Development90% Other -
$10,000+$150 - $199 / hr10 - 49Medina, WA
Ability to deliver
35.7/40.018/20 Reviews10/10 Clients & Experience7.7/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+Undisclosed10 - 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 -
$5,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
35.3/40.016.8/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
20% Custom Software Development80% Other -
$50,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
36.5/40.018.2/20 Reviews10/10 Clients & Experience8.3/10 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 -
$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+$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
34.8/40.019.6/20 Reviews8/10 Clients & Experience7.2/10 Market PresenceService focus
10% Custom Software Development90% Other -
$25,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
30.9/40.018.4/20 Reviews6.1/10 Clients & Experience6.4/10 Market PresenceService focus
25% Custom Software Development75% Other -
$1,000+$25 - $49 / hr50 - 249Seattle, WA
Ability to deliver
31.8/40.017.8/20 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 -
$5,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
31.2/40.016.8/20 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
23.5/40.015.8/20 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 -
$10,000+$50 - $99 / hr50 - 249Seattle, WA
Ability to deliver
26.4/40.020/20 Reviews1.4/10 Clients & Experience5/10 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 -
$10,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
24.2/40.018/20 Reviews1.2/10 Clients & Experience5/10 Market PresenceService focus
20% Custom Software Development80% Other
Latest Software Developers Articles
See all articles
How to Maximize Salesforce ROI After Go-Live
Salesforce ROI doesn’t end after go-live. In this article, you can discover how companies can improve after implementation value by evaluating real...
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.