80 Software Development Agencies & Firms in Seattle
Need Help Selecting a Company?
80 Software Development Agencies & Firms in Seattle
UPDATED January, 2022

80 Software Development Agencies & Firms in Seattle

  1. Home
  2. Software Developers
  3. Seattle

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. If you need help creating a shortlist, tell us about your project and receive personalized recommendations.

List of the Best Software Development Companies in The Emerald City

Seattle, WA
10 - 49 employees
$25,000+
Visit Site

Bilberrry, a web design agency, is based in Seattle, Washington and Kyiv, Ukraine. The team focuses on web design, custom software development, and web development.

Services

Custom Software Development Web Design Web Development E-Commerce Development

Client Focus

50% Midmarket ($10M - $1B)
50% Enterprise (>$1B)
Medina, WA
10 - 49 employees
$10,000+
Visit Site

Flower Press Creative Studio, LLC is an UX agency. They were launched in 2001, and their services include ux/ui design, web design, web development, custom software development, and more.

Services

Custom Software Development UX/UI Design Web Design Web Development Logo

Client Focus

30% Small Business (<$10M)
35% Midmarket ($10M - $1B)
35% Enterprise (>$1B)
Seattle, WA
2 - 9 employees
$10,000+
Visit Site

Custom software development firm Black Antelope offers custom software development, web development, web design, ux/ui design, and more. They were established in 2009.

Services

Custom Software Development Web Development Web Design E-Commerce Development UX/UI Design

Client Focus

30% Small Business (<$10M)
40% Midmarket ($10M - $1B)
30% Enterprise (>$1B)
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. Schedule a free consultation with an analyst.

Free Consultation
Seattle, WA
10 - 49 employees
$10,000+
Visit Site

App development company Arcade Dev House was launched in 2010. Based in , China and Sydney, Australia, the team offers mobile app development, web development, mobile & app marketing, and cloud consulting & SI.

Services

Custom Software Development Mobile App Development

Client Focus

10% Small Business (<$10M)
40% Midmarket ($10M - $1B)
50% Enterprise (>$1B)
Bellevue, WA
10,000+ employees
$10,000+
Visit Site

Beyondsoft Consulting Inc. Is a business intelligence company launched in 1995. The company focuses on BI & big data consulting & SI, cloud consulting & SI, IT strategy consulting, custom software development, and more, and is large.

Services

Custom Software Development BI & Big Data Consulting & SI Cloud Consulting & SI Enterprise App Modernization IT Strategy Consulting

Client Focus

30% Midmarket ($10M - $1B)
70% Enterprise (>$1B)
Seattle, WA
2 - 9 employees
$25,000+
Visit Site

Website development company Lunarbyte.io is based in Seattle, Washington. Established in 2019, the team provides web development, custom software development, and mobile app development.

Services

Custom Software Development Web Development Mobile App Development

Client Focus

50% Small Business (<$10M)
30% Midmarket ($10M - $1B)
20% Enterprise (>$1B)
Olympia, WA
250 - 999 employees
$10,000+
Visit Site

Esteemed is a website development company. The Olympia, Washington-based team provides web development, web design, and custom software development.

Services

Custom Software Development Web Design Web Development

Client Focus

20% Small Business (<$10M)
70% Midmarket ($10M - $1B)
10% Enterprise (>$1B)
Seattle, WA
10 - 49 employees
$10,000+
Visit Site

Helpful Human is a website development firm founded in 2013. The team specializes in web development, custom software development, ux/ui design, mobile app development, and more.

Services

Custom Software Development Web Development Mobile App Development UX/UI Design E-Commerce Development

Client Focus

40% Small Business (<$10M)
35% Midmarket ($10M - $1B)
25% Enterprise (>$1B)
Seattle, WA
2 - 9 employees
$10,000+
Visit Site

Zwinny is an application management & support company. The small Seattle, Washington-based team offers application management & support and custom software development. The firm was established in 2019.

Services

Custom Software Development Application Management & Support

Client Focus

100% Small Business (<$10M)
Seattle, WA
10 - 49 employees
$1,000+
Visit Site

Digitegy is a Seattle, Washington-based web design agency. The team focuses on web design, custom software development, web development, digital strategy, and more.

Services

Custom Software Development Web Design Web Development Digital Strategy Search Engine Optimization
Bellevue, WA
10 - 49 employees
$10,000+
Visit Site

ProCogia is a software development firm. The company is headquartered in Vancouver, Canada and Bellevue, Washington. Their services include custom software development, Artificial Intelligence, BI &amp; big data consulting &amp; SI, cloud consulting &amp; SI, and more.

Services

Custom Software Development Artificial Intelligence BI & Big Data Consulting & SI Cloud Consulting & SI IoT Development

Client Focus

80% Small Business (<$10M)
20% Midmarket ($10M - $1B)
Kirkland, WA
2 - 9 employees
$1,000+
Visit Site

Application development company CASoft Seattle offers mobile app development, search engine optimization, web design, web development, and more. They are based in Kirkland, Washington.

Services

Custom Software Development Mobile App Development Search Engine Optimization Web Design Web Development

Client Focus

100% Small Business (<$10M)
Edmonds, WA
2 - 9 employees
$1,000+
Visit Site

Libnamic, an IT managed services company, focuses on IT managed services, IT strategy consulting, web design, web development, and more. The company is headquartered in Puerto Real, Spain.

Services

Custom Software Development IT Managed Services IT Strategy Consulting Web Development Web Design

Client Focus

20% Small Business (<$10M)
80% Midmarket ($10M - $1B)
Seattle, WA
2 - 9 employees
$5,000+
Visit Site

SWECKER is a Seattle, Washington-based web development company. Their services include web development, web design, custom software development, mobile app development, and more.

Services

Custom Software Development Web Development Web Design Mobile App Development Digital Strategy

Client Focus

60% Small Business (<$10M)
40% Midmarket ($10M - $1B)
Seattle, WA
250 - 999 employees
Undisclosed
Visit Site

Projekt202 is a midsize custom software development firm in Addison, Texas; Austin, Texas; Seattle, Washington and San Francisco, California. The team specializes in custom software development, ux/ui design, mobile app development, web development, and more.

Services

Custom Software Development Mobile App Development UX/UI Design Web Development Web Design
Seattle, WA
2 - 9 employees
$25,000+
Visit Site

Software development company Northwest Independent Ruby Development was launched in 2011. The agency specializes in custom software development and web development, and is small.

Services

Custom Software Development Web Development
Seattle, WA
10 - 49 employees
$25,000+
Visit Site

Established in 2016, Nomadcy is a software development company. The team provides custom software development, cybersecurity, IT staff augmentation, web development, and more.

Services

Custom Software Development Application Management & Support Cybersecurity IT Staff Augmentation Mobile App Development

Client Focus

60% Small Business (<$10M)
30% Midmarket ($10M - $1B)
10% Enterprise (>$1B)
Seattle, WA
250 - 999 employees
$25,000+
Visit Site

Neudesic, a big data company, is headquartered in Irvine, California; Lombard, Illinois; Irving, Texas and Denver, Colorado. Their services include BI & big data consulting & SI, custom software development, cloud consulting & SI, enterprise app modernization, and more.

Services

Custom Software Development BI & Big Data Consulting & SI Cloud Consulting & SI Enterprise App Modernization Mobile App Development

Client Focus

20% Midmarket ($10M - $1B)
80% Enterprise (>$1B)
Bellevue, WA
50 - 249 employees
$10,000+
Visit Site

Virtuosity Consulting is a custom software development company. Their midsize team is in Bellevue, Washington and Navi Mumbai, India. Their services include custom software development, IT managed services, enterprise app modernization, web development, and more.

Services

Custom Software Development IT Managed Services CRM Consulting and SI BI & Big Data Consulting & SI Blockchain

Client Focus

30% Small Business (<$10M)
30% Midmarket ($10M - $1B)
40% Enterprise (>$1B)
Bellevue, WA
50 - 249 employees
$25,000+
Visit Site

Redtech is a custom software development firm. Based in Bellevue, Washington, their team offers custom software development, non-voice bpo/back office services, digital strategy, web development, and more.

Services

Custom Software Development Back Office Outsourcing Digital Strategy Web Development UX/UI Design

Client Focus

5% Small Business (<$10M)
55% Midmarket ($10M - $1B)
40% Enterprise (>$1B)
Seattle, WA
50 - 249 employees
Undisclosed
Visit Site

UX design agency Smashing Ideas is based in Seattle, Washington. They specialize in ux/ui design, IT strategy consulting, mobile app development, custom software development, and more.

Services

Custom Software Development UX/UI Design IT Strategy Consulting Mobile App Development Web Design
Kirkland, WA
50 - 249 employees
$25,000+
Visit Site

Heaven Solutions is an IT staff augmentation company. Headquartered in Kirkland, Washington; Iași, Romania; Bensheim, Germany and Il-Gżira, Malta, the agency was established in 2005. Their services include IT staff augmentation, application testing, custom software development, web development, and more.

Services

Custom Software Development Application Testing IT Staff Augmentation Artificial Intelligence Mobile App Development

Client Focus

30% Midmarket ($10M - $1B)
70% Enterprise (>$1B)
Bothell, WA
1,000 - 9,999 employees
Undisclosed
Visit Site

Custom software development company Endava is based in London, United Kingdom; Atlanta, Georgia; Denver, Colorado and Mendham, New Jersey. They offer custom software development, IT strategy consulting, and enterprise app modernization.

Services

Custom Software Development IT Strategy Consulting Enterprise App Modernization
Seattle, WA
50 - 249 employees
$10,000+
Visit Site

DMC, Inc. Is a custom software development company launched in 1996. The team provides custom software development, CRM consulting and SI, unified communications consulting &amp; SI, application testing, and more and is based in Chicago, Illinois; Somerville, Massachusetts; Denver, Colorado and Houston, Texas.

Services

Custom Software Development Application Testing CRM Consulting and SI Unified Communications Consulting & SI Web Development
Seattle, WA
10 - 49 employees
$5,000+
Visit Site

LabKey is a custom software development company. They were founded in 2005, and their services include custom software development and cloud consulting &amp; SI.

Services

Custom Software Development Cloud Consulting & SI
Bellevue, WA
250 - 999 employees
$10,000+
Visit Site

SOUTHWORKS, a custom software development firm, is based in London, United Kingdom; Bellevue, Washington and Vancouver, Canada. The team focuses on custom software development, cloud consulting &amp; SI, BI &amp; big data consulting &amp; SI, and cybersecurity.

Services

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

Client Focus

10% Small Business (<$10M)
50% Midmarket ($10M - $1B)
40% Enterprise (>$1B)
Seattle, WA
50 - 249 employees
$1,000+
Visit Site

Custom software development firm ConnectPOS provides custom software development and application management &amp; support. They were founded in 2013.

Services

Custom Software Development Application Management & Support

Client Focus

80% Small Business (<$10M)
20% Midmarket ($10M - $1B)
Kirkland, WA
10 - 49 employees
Undisclosed
Visit Site

Jetstream Software, Inc. Is a custom software development firm. They were established in 1994 and offer custom software development.

Services

Custom Software Development
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
Seattle, WA
10 - 49 employees
$5,000+
Visit Site

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
Seattle, WA
2 - 9 employees
Undisclosed
Visit Site

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
10 - 49 employees
$10,000+
Visit Site

Founded in 2015, CodeBru is a software development company. The team specializes in custom software development, web development, e-commerce development, and web design and is based in Seattle, Washington and Chicago, Illinois.

Services

Custom Software Development E-Commerce Development Web Development Web Design

Client Focus

50% Small Business (<$10M)
50% Midmarket ($10M - $1B)
Bellevue, WA
250 - 999 employees
$1,000+
Visit Site

Founded in 2009, Neighborsoft.team, a midsize e-commerce development firm, is located in Bellevue, Washington. Their team focuses on e-commerce development, web development, custom software development, mobile app development, and more.

Services

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

Client Focus

100% Small Business (<$10M)
Redmond, WA
50 - 249 employees
Undisclosed
Visit Site

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
Redmond, WA
2 - 9 employees
$1,000+
Visit Site

Dynomind.tech is a custom software development firm. Headquartered in Redmond, Washington and Jerusalem, Israel, their team provides custom software development, web development, mobile app development, BI &amp; big data consulting &amp; SI, and more.

Services

Custom Software Development Web Development Mobile App Development BI & Big Data Consulting & SI Cloud Consulting & SI

Client Focus

70% Small Business (<$10M)
30% Midmarket ($10M - $1B)
Bellevue, WA
10 - 49 employees
$10,000+
Visit Site

Seattle Software Developers, a software development company, is located in Bellevue, Washington; London, United Kingdom; Rome, Italy and Augsburg, Germany. They provide custom software development, web development, mobile app development, ux/ui design, and more.

Services

Custom Software Development Web Development Mobile App Development Artificial Intelligence UX/UI Design
Seattle, WA
50 - 249 employees
$100,000+
Visit Site

Carbon Five, a software development company, is located in San Francisco, California; Santa Monica, California; Chattanooga, Tennessee and New York, New York. The team focuses on custom software development, mobile app development, web development, web design, and more.

Services

Custom Software Development Mobile App Development Web Development Web Design Branding

Client Focus

40% Small Business (<$10M)
30% Midmarket ($10M - $1B)
30% Enterprise (>$1B)
Bellevue, WA
50 - 249 employees
$10,000+
Visit Site

Fresh Consulting is a web design agency. They were founded in 2007, and their services include web design, custom software development, mobile app development, branding, and more.

Services

Custom Software Development Web Design Mobile App Development Branding Content Marketing
Seattle, WA
50 - 249 employees
$10,000+
Visit Site

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
50 - 249 employees
$75,000+
Visit Site

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)
Redmond, WA
250 - 999 employees
$25,000+
Visit Site

Plain Concepts, an artificial intelligence company, was founded in 2006. The midsize team specializes in Artificial Intelligence, BI &amp; big data consulting &amp; SI, custom software development, ux/ui design, and more.

Services

Custom Software Development Artificial Intelligence BI & Big Data Consulting & SI UX/UI Design Web Development

Client Focus

20% Midmarket ($10M - $1B)
80% Enterprise (>$1B)
Seattle, WA
2 - 9 employees
Undisclosed
Visit Site

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
Bellevue, WA
2 - 9 employees
$10,000+
Visit Site

Curvine Web Solutions is a software development company. Located in Bellevue, Washington, the agency focuses on custom software development, web design, e-commerce development, and logo.

Services

Custom Software Development Web Design E-Commerce Development Logo
Bellevue, WA
2 - 9 employees
$5,000+
Visit Site

RixiVert Technologies, a custom software development firm, specializes in custom software development, web design, content marketing, and pay per click. The firm is in Bellevue, Washington and Los Angeles, California.

Services

Custom Software Development Web Design Content Marketing Pay Per Click
Woodinville, WA
2 - 9 employees
$5,000+
Visit Site

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
Bellevue, WA
2 - 9 employees
Undisclosed
Visit Site

Slick Development Washington is a web development firm in Bellevue, Washington. Their services include web development, mobile app development, and custom software development.

Services

Custom Software Development Mobile App Development Web Development
Tacoma, WA
2 - 9 employees
Undisclosed
Visit Site

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
Seattle, WA
10 - 49 employees
Undisclosed
Visit Site

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
Seattle, WA
10 - 49 employees
$10,000+
Visit Site

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)
Bremerton, WA
10 - 49 employees
Undisclosed
Visit Site

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
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. Schedule a free consultation with an analyst.

Free Consultation