100 Software Development Agencies & Firms in Seattle
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100 Software Development Agencies & Firms in Seattle
UPDATED December, 2023

100 Software Development Agencies & Firms in Seattle

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How do you hire a software development company in Seattle for your business? To find the right company, follow these steps:

  1. Make your RFP as specific as you can. Be sure to highlight your end goals and prioritize your feature list.
  2. Determine if your software development team’s location is important to you. With experienced and well-qualified teams located around the world, you’ll never run out of options. While nearshore and onshore software development companies are often easier to collaborate with due to their location, offshore software developers can be more affordable.
  3. Pay potential software developers to work with you on a small project. By bringing 2-3 of your top candidates on board temporarily, you’ll be able to assess the quality of their work and how well you collaborate with their team.

With hundreds of software development agencies to choose from, how do you get started? Our list of the best software development agencies includes client reviews, minimum project size, team size, specialty services, and client focus. Define the services you need, project goals, and budget to begin narrowing your choices.

List of the Best Software Development Companies in The Emerald City

Seattle, WA
50 - 249 employees
$25,000+
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Assemble is an e-commerce development firm. In Seattle, Washington, the team specializes in e-commerce development, custom software development, cloud consulting & SI, ERP consulting and SI, and more.

Services

Custom Software Development E-Commerce Development Business Consulting Cloud Consulting & SI ERP Consulting and SI

Client Focus

30% Midmarket ($10M - $1B)
70% Enterprise (>$1B)
Kent, WA
2 - 9 employees
$10,000+
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Located in Jaipur, India and Kent, Washington, WinnComm, LLC is a custom software development company. They specialize in custom software development, web development, public relations, social media marketing, and more.

Services

Custom Software Development Web Development Public Relations Social Media Marketing Mobile App Development

Client Focus

Seattle, WA
10 - 49 employees
Undisclosed
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ITrellis is a cloud consulting & SI company. Their small team is in Seattle, Washington. Their services include cloud consulting & SI, custom software development, IT strategy consulting, and IT managed services.

Services

Custom Software Development Cloud Consulting & SI IT Managed Services IT Strategy Consulting

Client Focus

Need help selecting a company?

Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Get started by submitting your project details.

Get Started
Seattle, WA
50 - 249 employees
$10,000+
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Devblock is a software development firm. The team focuses on custom software development, mobile app development, web development, e-commerce development, and more, and the agency is located in Seattle, Washington and Ho Chi Minh, Vietnam.

Services

Custom Software Development Mobile App Development Web Development E-Commerce Development ERP Consulting and SI

Client Focus

20% Small Business (<$10M)
60% Midmarket ($10M - $1B)
20% Enterprise (>$1B)
Seattle, WA
Freelancer employees
$5,000+
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Located in Seattle, Washington, On The Brink Designs is a small web development firm. Their services include web development, web design, and e-commerce development.

Services

Custom Software Development IT Strategy Consulting Web Design Web Development

Client Focus

Redmond, WA
250 - 999 employees
$10,000+
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Quadrant Resource LLC is an IT strategy consulting company established in 2004. The company offers IT strategy consulting, IT managed services, cloud consulting & SI, and custom software development.

Services

Custom Software Development IT Strategy Consulting IT Managed Services Cloud Consulting & SI

Client Focus

30% Small Business (<$10M)
10% Midmarket ($10M - $1B)
60% Enterprise (>$1B)
Seattle, WA
10 - 49 employees
$10,000+
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Headquartered in Seattle, Washington, White Rabbit Group Inc is a web development company. They specialize in web development, custom software development, ux/ui design, e-commerce development, and more and were founded in 2016.

Services

Custom Software Development Web Development E-Commerce Development Mobile App Development Product Design

Client Focus

25% Small Business (<$10M)
50% Midmarket ($10M - $1B)
25% Enterprise (>$1B)
Kirkland, WA
10 - 49 employees
$5,000+
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Facet Digital, LLC, a website development company, offers web development, api development, custom software development, devops managed services, and more. The firm is located in Kirkland, Washington.

Services

Custom Software Development API Development Web Development DevOps Managed Services Microservices Architecture Services

Client Focus

Bellevue, WA
10 - 49 employees
$100,000+
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Virtue Tech Inc is a cloud consulting & SI company. They are located in Bellevue, Washington and have small team. They provide cloud consulting & SI, BI & big data consulting & SI, IT strategy consulting, custom software development, and more.

Services

Custom Software Development Cloud Consulting & SI BI & Big Data Consulting & SI IT Strategy Consulting AI Development

Client Focus

100% Small Business (<$10M)
Marysville, WA
50 - 249 employees
$1,000+
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Hybrid Mediaworks is a graphic design agency. Their small team is based in Islamabad, Pakistan. Their services include graphic design, social media marketing, video production, and web design.

Services

Custom Software Development E-Commerce Development Web Design Web Development

Client Focus

Seattle, WA
2 - 9 employees
$10,000+
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Software development firm Null Unit was launched in 2017. The firm offers custom software development, ux/ui design, business consulting, enterprise app modernization, and more.

Services

Custom Software Development UX/UI Design Business Consulting Financial Consulting AR/VR Development

Client Focus

25% Small Business (<$10M)
50% Midmarket ($10M - $1B)
25% Enterprise (>$1B)
Seattle, WA
2 - 9 employees
$1,000+
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PNW Design Consulting is a web design company. They are located in Seattle, Washington and have small team of experts. Their services include web design, custom software development, e-commerce development, logo, and more.

Services

Custom Software Development Web Design Business Consulting E-Commerce Development Logo

Client Focus

70% Small Business (<$10M)
30% Midmarket ($10M - $1B)
Seattle, WA
2 - 9 employees
Undisclosed
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Buoy Development is a software development company. They are headquartered in Seattle, Washington and have small team. They focus on custom software development.

Services

Custom Software Development

Client Focus

60% Small Business (<$10M)
40% Midmarket ($10M - $1B)
Seattle, WA
50 - 249 employees
$75,000+
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TangoTeams is a mobile application development firm. Their midsize team is in Seattle, Washington. Their services include mobile app development, web development, custom software development, and other application development.

Services

Custom Software Development Mobile App Development Web Development Other Application Development

Client Focus

30% Small Business (<$10M)
60% Midmarket ($10M - $1B)
10% Enterprise (>$1B)
Seattle, WA
2 - 9 employees
$1,000+
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Video production agency Heliopath Labs is located in Seattle, Washington and Atlanta, Georgia. The team specializes in video production, custom software development, IoT development, market research, and more.

Services

Custom Software Development IoT Development Video Production Business Consulting ERP Consulting and SI

Client Focus

Seattle, WA
10 - 49 employees
$100,000+
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Small custom software development firm Chaos Theory Studios, is headquartered in Seattle, Washington. The team specializes in custom software development, AR/VR development, Artificial Intelligence, ux/ui design, and more.

Services

Custom Software Development AI Development AR/VR Development Product Design UX/UI Design

Client Focus

Seattle, WA
10 - 49 employees
$1,000+
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Launched in 2017, Homeworld is a branding company. The team provides branding, marketing strategy, product design, BI & big data consulting & SI, and more.

Services

Custom Software Development Branding Marketing Strategy Product Design BI & Big Data Consulting & SI

Client Focus

Seattle, WA
2 - 9 employees
$5,000+
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Dark Matter Digital is a custom software development company. Their team is headquartered in Seattle, Washington. The firm specializes in custom software development, ux/ui design, digital strategy, and IT strategy consulting.

Services

Custom Software Development Digital Strategy IT Strategy Consulting UX/UI Design

Client Focus

40% Small Business (<$10M)
10% Midmarket ($10M - $1B)
50% Enterprise (>$1B)
Seattle, WA
2 - 9 employees
$1,000+
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Garingx, a SEO services firm, was founded in 2022. They offers search engine optimization, web design, graphic design, custom software development, and more.

Services

Custom Software Development Graphic Design Search Engine Optimization Web Design Web Development

Client Focus

Bothell, WA
2 - 9 employees
$1,000+
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Software development company and application testing company Autonomicsoft Solutions LLC is located in Bothell, Washington. Launched in 2018, the team provides custom software development and application testing.

Services

Custom Software Development Application Testing

Client Focus

Bellevue, WA
2 - 9 employees
$10,000+
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Techufy Inc is a product design company established in 2022. The team focuses on product design, custom software development, IoT development, enterprise app modernization, and more and is located in Bellevue, Washington.

Services

Custom Software Development Enterprise App Modernization IoT Development Product Design API Development

Client Focus

40% Small Business (<$10M)
50% Midmarket ($10M - $1B)
10% Enterprise (>$1B)
Kirkland, WA
2 - 9 employees
Undisclosed
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Founded in 2016, PiorSoft is a software development company. The company specializes in custom software development, and is small.

Services

Custom Software Development

Client Focus

Kirkland, WA
2 - 9 employees
$10,000+
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Clocktower Media is a web design company. They offer web design, web development, custom software development, and e-commerce development and are headquartered in Kirkland, Washington.

Services

Custom Software Development Web Development Digital Strategy E-Commerce Development IoT Development

Client Focus

Woodinville, WA
2 - 9 employees
$5,000+
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Blue K LLC is a custom software development firm. Founded in 2005, their team focuses on custom software development, IT managed services, cybersecurity, and web design.

Services

Custom Software Development IT Managed Services Cybersecurity Web Design

Client Focus

Seattle, WA
10 - 49 employees
$5,000+
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Rooster Park Consulting is a Seattle, Washington-based software development company. Launched in 2008, the team focuses on custom software development and IT staff augmentation.

Services

Custom Software Development IT Staff Augmentation

Client Focus

Seattle, WA
10 - 49 employees
$5,000+
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LabKey is a custom software development company. They were founded in 2005, and their services include custom software development and cloud consulting & SI.

Services

Custom Software Development Cloud Consulting & SI

Client Focus

Seattle, WA
2 - 9 employees
Undisclosed
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Business consulting company Dynamo Plus was launched in 2013. The team provides business consulting, HR services, marketing strategy, custom software development, and more.

Services

Custom Software Development Business Consulting HR Consulting Marketing Strategy Content Marketing

Client Focus

Seattle, WA
50 - 249 employees
Undisclosed
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Pensar Development is a Seattle, Washington-based product design company. They focus on product design, custom software development, and ux/ui design and were founded in 2001.

Services

Custom Software Development Product Design UX/UI Design

Client Focus

Bellevue, WA
50 - 249 employees
Undisclosed
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Prime 8 Consulting is a midsize business consulting company in Bellevue, Washington. The team specializes in business consulting, custom software development, digital strategy, and marketing strategy.

Services

Custom Software Development Business Consulting Digital Strategy Marketing Strategy

Client Focus

Redmond, WA
50 - 249 employees
Undisclosed
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Custom software development company Flexasoft was founded in 2007. The firm offers custom software development, business consulting, application testing, and IT managed services.

Services

Custom Software Development Application Testing Business Consulting IT Managed Services

Client Focus

Seattle, WA
2 - 9 employees
Undisclosed
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Founded in 2010, MyWorks Design is a web design company. Headquartered in Fort Worth, Texas and Seattle, Washington, the team offers web design, custom software development, and search engine optimization.

Services

Custom Software Development Web Design Search Engine Optimization

Client Focus

Kirkland, WA
10 - 49 employees
Undisclosed
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Jetstream Software, Inc. Is a custom software development firm. They were established in 1994 and offer custom software development.

Services

Custom Software Development

Client Focus

Kirkland, WA
50 - 249 employees
Undisclosed
Visit Site
Launched in 2010, Dev9 is a midsize Kirkland, Washington-based custom software development firm. Their services include custom software development and IT managed services.

Services

Custom Software Development IT Managed Services

Client Focus

Seattle, WA
10 - 49 employees
Undisclosed
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Snaps Technology is a software development company founded in 2010. The firm provides custom software development, e-commerce development, web design, and web development.

Services

Custom Software Development E-Commerce Development Web Design Web Development

Client Focus

Bellevue, WA
10 - 49 employees
Undisclosed
Visit Site
Established in 1987, Abasys Technologies Inc is a small custom software development firm. Their services include custom software development, blockchain, e-commerce development, mobile app development, and more.

Services

Custom Software Development Blockchain E-Commerce Development Mobile App Development Web Development

Client Focus

Tacoma, WA
2 - 9 employees
Undisclosed
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Software development company Pi Development was founded in 2013. The team focuses on custom software development, web development, branding, and graphic design.

Services

Custom Software Development Web Development Branding Graphic Design

Client Focus

Tacoma, WA
Freelancer employees
Undisclosed
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Matthew Fleming Inc., a custom software development company, was launched in 2001. They offers custom software development, e-commerce development, mobile app development, search engine optimization, and more.

Services

Custom Software Development E-Commerce Development Mobile App Development Search Engine Optimization Web Design

Client Focus

Olympia, WA
2 - 9 employees
Undisclosed
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Paragon Works is an Olympia, Washington-based web design company. They provide web design, custom software development, cybersecurity, mobile app development, and more.

Services

Custom Software Development Web Design Cybersecurity Mobile App Development IT Managed Services

Client Focus

Lakewood, WA
10 - 49 employees
Undisclosed
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Rev Consulting LLC is a software development firm. Located in Lakewood, Washington, the team specializes in custom software development, cloud consulting & SI, application management & support, cybersecurity, and more.

Services

Custom Software Development Application Management & Support Cloud Consulting & SI Cybersecurity Web Development

Client Focus

Bremerton, WA
10 - 49 employees
Undisclosed
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POWTEC SOLUTIONS, LLC is a small software development company established in 2010. Their services include custom software development, IT managed services, cybersecurity, and business consulting.

Services

Custom Software Development Business Consulting Cybersecurity IT Managed Services

Client Focus

Seattle, WA
2 - 9 employees
Undisclosed
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Software development company Generalsoft Corporation is based in Seattle, Washington. They offer custom software development, cloud consulting & SI, IT managed services, IT strategy consulting, and more and were established in 2011.

Services

Custom Software Development Cloud Consulting & SI IT Managed Services IT Strategy Consulting Mobile App Development

Client Focus

Redmond, WA
2 - 9 employees
Undisclosed
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Yoctocode, LLC is a custom software development firm. The team offers custom software development, ux/ui design, IoT development, IT managed services, and more, and the firm is based in Redmond, Washington and Kharkiv, Ukraine.

Services

Custom Software Development IT Managed Services IT Strategy Consulting IoT Development UX/UI Design

Client Focus

Seattle, WA
10 - 49 employees
Undisclosed
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ITrellis, LLC is a data analytics company. They are located in Seattle, Washington and have small team of experts. Their services include BI & big data consulting & SI, cloud consulting & SI, custom software development, and business consulting.

Services

Custom Software Development BI & Big Data Consulting & SI Business Consulting Cloud Consulting & SI

Client Focus

Seattle, WA
10 - 49 employees
Undisclosed
Visit Site
IT strategy consulting company DevsWeek is located in Seattle, Washington. The team specializes in IT strategy consulting, custom software development, and IT managed services.

Services

Custom Software Development IT Strategy Consulting IT Managed Services

Client Focus

Seattle, WA
10 - 49 employees
Undisclosed
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PHYTEC America, a custom software development firm, was founded in 1986. In Bainbridge Island, Washington; Seattle, Washington; Mainz, Germany and Bengaluru, India, the team specializes in custom software development, IT strategy consulting, application testing, and application management & support.

Services

Custom Software Development IT Strategy Consulting Application Management & Support Application Testing

Client Focus

Seattle, WA
2 - 9 employees
Undisclosed
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Launched in 2000, ShowGo Software is a software development company. In Seattle, Washington, the team offers custom software development, application testing, and application management & support.

Services

Custom Software Development Application Management & Support Application Testing

Client Focus

Seattle, WA
50 - 249 employees
Undisclosed
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Formidable is a software development firm. The team focuses on custom software development, IT managed services, cloud consulting & SI, and application testing, and the firm is located in Seattle, Washington and London, United Kingdom.

Services

Custom Software Development IT Managed Services Application Testing Cloud Consulting & SI

Client Focus

Seattle, WA
10 - 49 employees
Undisclosed
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Tignis is a software development firm. Founded in 2017, the company is headquartered in Seattle, Washington. Their services include custom software development, Artificial Intelligence, IT strategy consulting, and IT managed services.

Services

Custom Software Development AI Development IT Managed Services IT Strategy Consulting

Client Focus

Seattle, WA
2 - 9 employees
Undisclosed
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Founded in 2011, Actus Consulting Group is a CRM consulting and SI and custom software development firm. The company offers CRM consulting and SI and custom software development, and is small.

Services

Custom Software Development CRM Consulting and SI

Client Focus

Lake Stevens, WA
2 - 9 employees
Undisclosed
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Headquartered in Lake Stevens, Washington, Custom Websites by Webvisuals is a small custom software development company. Their services include custom software development, branding, search engine optimization, web design, and more.

Services

Custom Software Development Branding Search Engine Optimization UX/UI Design Web Design

Client Focus

Need help selecting a company?

Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Get started by submitting your project details.

Get Started