The Best Software Developers in The Emerald City

List of the Best Seattle Software Developers

Looking for top software developers in Seattle?

As the use of mobile and web apps rise, your business’s digital presence becomes even more important. The biggest challenge facing organizations is how they can keep up in the digital world. The best way is to continuously develop up-to-date software that allows your organization to maintain an impactful digital presence.

To assist you in your search for a partner, we’ve compiled this list of the top software development companies in Seattle. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.

  • 1

    projekt202

    Projekt202 is a software development and marketing company based in Addison, Texas. They were founded in 2003 and have a team of 285 employees. They specialize in custom software development, UX/UI design, and mobile app development to improve their client’s customer and employee experiences. 

    Notable Project

    Projekt202 designed a commercial consumer platform for a banking startup. They conducted extensive research and used it to design several versions of the platform, including a proof-of-concept, which was then developed into a working product. The clients says that the product was positively received by their consumers and that the design is intuitive, transparent, and relatively free from bugs or other issues. 

    “Their ideas were unique and thought-provoking and centered around getting the product to market faster.” – VP of Product Management, Banking Startup 
     

    Former clients
    Capital One
    Samsung
    7-Eleven
    $ $ $ $ $
    equalizer

    Undisclosed

    group250 - 999 Employees
    place Seattle, WA
    5.0
    5.0
    1 Clutch review
    Awards

    100 fastest-growing privately-held companies in Dallas-Fort Worth (2011-2016) , Fast Tech Awards (2017)

  • 2

    Bilberrry

    Bilberrry is a web design and development agency that was founded in 2010. The team of 19 is headquartered in Seattle and Kyiv, Ukraine. It specializes in custom software development, web development, and web design. 

    Notable Project

    A wedding registry company wasn't satisfied with its developers and needed to get its website out of beta quickly. Bilberrry built a custom PHP website and updated the old website. The new website has a feature that syncs with large national retailers to provide registry information. Bilberry now maintains and updates both websites. 

    "Other developers we’ve seen have said they could build something, but never completed it, giving us 'maybes' or reasons why they shouldn’t be building it. That’s never happened with Bilberrry." – CEO, Wedding Registry Company

    Former clients
    Chipotle
    GAP
    Whirlpool
    MARS
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Seattle, WA
    5.0
    5.0
    17 Clutch reviews
  • 3

    Surge Software

    Surge Software is a software development agency headquartered in Bellevue, WA, with other offices in Sacramento, CA, Baltimore, MD, and Salt Lake City, UT. The agency of 160+ employees provides custom software development, web development, mobile app development, and e-commerce development services.

    Notable Project

    A consulting firm hired Surge Software for web development and UX work. The agency provided staff augmentation across different platforms. The consulting firm felt that Surge was responsive and that its work has been extremely valuable to the company. 

    "I’m comfortable in the knowledge that if issues arose with any team member, I could talk honestly with Surge and they would remedy the situation. Be open, articulate your goals, and they will work with you to provide solutions." – Director of Software, Management Consulting Firm

    Former clients
    Ralph Lauren
    Verizon
    UnderArmor
    Purdue University
    $ $ $ $ $
    equalizer $25,000+
    group50 - 249 Employees
    place Bellevue, WA
    4.8
    4.8
    4 Clutch reviews
    Awards

    Inc. 5000 Fastest Growing Companies (2012-2018) , Stevie Awards: Bronze - Company of the Year - Computer Software (2014)

  • Tell us about your project

    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 a Manifest Analyst.

  • 4

    Kelsus

    Kelsus has been providing clients with software engineering teams to small businesses in the education, business services, and consumer product service industries since 2008. With a team of 50 in offices around the Colorado, Buenos Aires, Duvall, and Argentina areas, they help clients publish content, social strategy, and software development.

    Notable Project

    Kelsus partnered with pet-owner social media company to design, create the application, and build an algorithm for a weekly competition to feature owners pets. The results were 20,000 users and over 30,000 pets on the platform with Kelsus app development.

    “I can’t say enough positive things about them. Rather than just building whatever we ask of them, Kelsus has been very helpful about leading us through the development process. As a self-funded startup, we don’t always know what we’re building, so they advise us on the most efficient ways to proceed.” – Co-Founder & CEO, ZooPix

    Former clients
    Sphero
    Equifax
    Zoopix
    DigitalTown
    Chatbunker
    Intel
    $ $ $ $ $
    equalizer $50,000+
    group10 - 49 Employees
    place Duvall, WA
    4.7
    4.7
    3 Clutch reviews
  • 5

    Northwest Independent Ruby Development

    Northwest Independent Ruby Development is a digital agency based in Seattle. Since 2011, the small team of four has specialized in providing web and custom software development. 

    Notable Project

    Northwest Independent Ruby Development was hired to create software for a mental health project. Because of their work, the software was easier to manage internally.

    "They [Northwest Independent Ruby Development] are good at translating to us what they need to do as a developer to make the program work."- Customer Service and Operations Manager, Mental Health Project

    Former clients
    Inkd
    <strong>;</strong>University of Washington
    Expedia
    Whitepages
    $ $ $ $ $
    equalizer $25,000+
    group2 - 9 Employees
    place Seattle, WA
    5.0
    5.0
    1 Clutch review
  • 6

    VAO

    VAO is a software house based in Poznan, Poland with an additional office in London. Since the company was founded in 2004, their team has grown to 28 employees. VAO specializes in web, mobile app, and custom software development. Most of their clients are midmarket companies. 

    Notable Project

    An HR consultancy hired VAO to develop a website that would generate leads and be easy to update in-house. VAO built the new platform on an easily modifiable Drupal CMS that clearly organizes lists of clients for effortless outreach. Combined with a targeted Google ad campaign, the site redesign has been securing new sales leads on a regular basis. 

    "The new site is ranked better on Google, thus easier to find. We also use Google ads to generate new leads, and it’s working."–CEO, Human Resources Consultancy

    Former clients
    Honeywell
    Baseone
    Silver Bullet Publishing
    TBWA
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Seattle, WA
    4.9
    4.9
    25 Clutch reviews
  • 7

    Smashing Ideas

    Smashing Ideas is a mobile app development company that offers an array of services such as UI/UX design, web design, data strategy and analytics, and quality assurance and testing. Since its founding in 1996, Smashing Ideas has grown to over 50 employees who are passionate, curious, and creative.

    Notable Project

    A news outlet commissioned Smashing Ideas to create apps for its weather stations. Smashing Ideas developed both tablet and smartphone apps.

    “When they’re coming up with the ideas, they’re phenomenal ideas, and they’re also reasonable and feasible ideas. That mix of creativity and always knowing what can be executed is where they’re strongest. Their ability to execute on the creative ideas that the team comes up with is what distinguishes them for me.” – Senior Manager, Newspaper Publishing Company

    Former clients
    Sony
    Microsoft
    Mattel
    General Electric
    Panasonic
    $ $ $ $ $
    equalizer

    Undisclosed

    group50 - 249 Employees
    place Seattle, WA
    5.0
    5.0
    1 Clutch review
    Awards

    Davey Awards: Gold and Silver 2015 , W3: Gold and Silver

  • 8

    Black Antelope

    Black Antelope is a digital creative industry headquartered in Seattle. It was founded in 2009 and has expanded to additional locations in Sacremento, Calif. and London. Black Antelope has about 3 employees that serve a range of enterprise and small- to mid-sized businesses. Services include custom software development, web development, and web design. 

    Notable Project

    Black Antelope redeveloped a website on a unified Drupal CMS to improve performance. The system includes translation modules for different coding languages. Initially, they provided design services before a third-party vendor assumed that responsibility. Subsequently, they focused on SEO and increased web traffic significantly. The site's faster speed and new professional look significantly improve site rankings. 

    "Despite significant peaks of traffic at times, the site never went down. Black Antelope helped us with initial SEO implementations, giving us core advice for this area. We definitely saw an uptick in Google search results."  – Director of Web Development, Tech Company

     

    Former clients
    UC Berkeley
    Monterey Bay Aquarium
    Fujitsu Laboratories of America
    Cloudwords
    SPCA International
    $ $ $ $ $
    equalizer $10,000+
    group2 - 9 Employees
    place Seattle, WA
    4.9
    4.9
    10 Clutch reviews
  • 9

    Celebrate Drupal

    Celebrate Drupal is a web development and design firm in Seattle. It was founded in 2009, and its team of 8 helps clients with IT staff augmentation, custom software development, UI/UX design, and e-commerce development in addition to web design and development.

    Notable Project

    A networking nonprofit hired Celebrate Drupal after a member said that its website was not being used as effectively as possible. Celebrate Drupal manages the website's back end, keeps the design current, and provides updates and staff training.

    "If I have something I need them to work on, we're in constant contact with each other, and I never really had that with any other developer before. Their level of responsiveness is very high, even though we have a three-hour time difference. We're very cognizant of each other's work schedules, and they're very accommodating." - Finance & Technology Manager, Networking Nonprofit

    Former clients
    State of North Carolina
    U.S. Department of Veterans Affairs
    U.S. Department of Education
    Hasbro
    Washington Fish and Wildlife
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Olympia, WA
    4.8
    4.8
    6 Clutch reviews
  • 10

    TECLA

    TECLA is a staff augmentation firm with offices in Seattle, Mexico, Lima, Peru, and various other South American countries. Since 2012, their small team of around 10 specializes in custom software, web, and e-commerce development.  

    Notable Project

    TECLA built an e-commerce platform for a retail company. They took pre-existing designs and API specs and implemented them into the solution's frontend. The client was pleased with how TECLA's work reflected the requirements and said that it exceeded expectations.

    The work was primarily on the frontend and the agency met all of the client's expectations. 

    "Tecla Labs always puts up with it, makes the changes, and delivers how I want it." —Founder, Retail Company 

    Former clients
    Pepsi
    Witlee.com
    BMW
    Miller
    $ $ $ $ $
    equalizer

    Undisclosed

    group10 - 49 Employees
    place Seattle, WA
    4.8
    4.8
    5 Clutch reviews
  • 11

    PYCOGroup

    Founded in 2014, PYCOGroup is a development firm. Their team of around 370 employees is based in Brussels, with an additional office around the globe. They focus on custom software, web, and mobile app development.

    Notable Project

    PYCOGroup developed a mobile app for a travel services company. While the internal team was responsible for the database and API, the team handled the rest of the project. 

    "The team has been really efficient and helpful to build up and deliver the solution." – Program Director, Travel Services Company

    Former clients
    Microsoft
    American Express
    Volkswagen
    Coach
    Adobe
    Ansarada
    $ $ $ $ $
    equalizer $100,000+
    group250 - 999 Employees
    place Seattle, WA
    4.8
    4.8
    2 Clutch reviews
  • 12

    OneTree

    Headquartered in Montevideo, Uruguay, OneTree is a technology services company that was founded in 2011. With another location in Kirkland, Wash., they have over 75 employees that specialize in custom software development, UX/UI design, and mobile app development for hybrid & cross-platform apps. 

    Notable Project

    An eyewear retail platform hired OneTree to upgrade their e-commerce platform. The client wanted to improve functionality and productivity with a new system. Their transparent workflow led to an increase in conversion rates.

    "Something that stands out about them is their communication." – CEO, Eyewear Retail Platform

    Former clients
    CareAngel
    Temple University
    FIVISA
    Deloitte
    PADI
    $ $ $ $ $
    equalizer $5,000+
    group50 - 249 Employees
    place Kirkland, WA
    4.8
    4.8
    4 Clutch reviews
  • 13

    Flower Press Creative Studio, LLC

    A full-service digital design and development agency, Flower Press Creative Studio takes on mobile app, web, and custom software development projects. Founded in 2001, the small team of 6 is headquartered in Seattle and also has experience in UI/UX design.

    Notable Project

    A founder of a social meetup company needed help launching the business. Flower Press Creative Studio agreed to help, developing an iOS app and assisting with branding.

    “She was really good at taking my ideas and turning them into something usable. She’s easy to work with, as well as versatile. She has a way of remedying doubts clients might have about their ideas.” – Founder, Social Meetup App

    Former clients
    Nike
    Disney
    SurveyMonkey
    Lipton
    Southern Living
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Medina, WA
    4.9
    4.9
    13 Clutch reviews
  • 14

    Digitegy

    Digitegy is a digital agency that provides a mix of development and marketing services: software, web, and mobile app development, web design, SEO, PPC, and digital strategy. Founded in 2016, they have a small team of fewer than five employees.

    Notable Project

    A small bagel restaurant tasked Digitegy with designing and developing a website. Digitegy accepted the challenge, launching the project by getting to know the client's needs, such as the most important information to include on the site, branding, and features. After completing the website, Digitegy transformed it into an app, so users could choose how they interact with the bagel restaurant.

    "Digitegy frequently reaches out to us with suggestions of how to make the site better. They help us much more than any company that we’ve ever worked with." – Owner, Bagel Restaurant 

    Former clients
    Style Skool
    Bruchelle's;Bagel Bistro
    Greg Landscaping
    AA Derma Science
    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place Seattle, WA
    5.0
    5.0
    3 Clutch reviews
  • 15

    BTown Web

    Founded in 2007, BTown Web is a development agency located in Burien, Wash. The small team of 8 provides expertise in web development, e-commerce development, and custom software development.  

    Notable Project

    Following up on earlier SEO work, BTown Web was hired by a zipline company for a website redesign. The zipline company wanted the website to be easier to use and up to date with the current digital design trends. The redesign helped it experience an increase in sales. The client felt that BTown Web was extremely responsive to its needs.

    "I think they're [BTown Web] really attentive to what the customer is looking for. That can be rare, especially in designing a website." – Director of Marketing, Zipline Company

    Former clients
    Guided
    Rep the Squad
    Orca Tactical Gear
    Pro Compression
    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Burien, WA
    4.9
    4.9
    16 Clutch reviews
  • 16

    SWECKER

    Founded in 2003, Swecker is a Seattle-based web development agency that serves small and mid-market businesses. In addition to web development, the team of fewer than 10 also offers mobile app and custom software development and design.

    Notable Project

    When a wine company noticed their online presence dwindling, they hired Swecker. Swecker developed and modernized the client’s Drupal8 and WordPress websites, and helped troubleshoot their content management system (CMS) issues.

    “Everything is done in a timely manner. They're always super communicative, and they do quality work.” – Creative Coordinator, Wine Company

    Former clients
    Microsoft
    Farmers Insurance
    The Pike Place Market
    Canoe Ridge Vineyard
    Mackie
    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Seattle, WA
    5.0
    5.0
    2 Clutch reviews
    Awards

    Top 10 Enterprise Web Design Companies – 10bestdesign.com

  • 17

    CASoft Seattle

    CASoft Seattle is a web design, development, and marketing company located in Kirkland, Wash. Founded in 2017, CASoft Seattle has a team of three employees that not only specialize in web development but also mobile app and custom software development. Their marketing expertise spans SEO, PPC, and branding. They primarily work with small businesses. 

    Notable Project

    CASoft Seattle built a platform for a social media streaming app. The product emphasized group navigation and privacy. For example, users who uploaded a video to the platform could control who saw the content. After working with a development team that could not complete the project, the social media platform hired CASoft Seattle. They built a custom iOS platform that included the client's desired featured and addressed coding issues in the backend.

    "After working with some of the highest rated development firms, I appreciate how CASoft Seattle does business. Their ability to communicate and work within a partnership is second to none. They had a lot of issues working with the original code but were ultimately able to succeed where other companies failed." – Founder and CEO, Social Media Streaming App

    Former clients
    Footlogix
    Great Plains College
    Modern Metals
    Mobile Veterinary Mission
    $ $ $ $ $
    equalizer $1,000+
    group2 - 9 Employees
    place Kirkland, WA
    5.0
    5.0
    3 Clutch reviews
  • 18

    Helpful Human

    Helpful Human is a development agency based in Seattle. Since 2013, their team of 15 has been specializing in web design and development, mobile app development, and UX/UI design. They work primarily with small businesses in the information services and business services industries.

    Notable Project

    A tech startup hired Helpful Human for their design expertise. They conducted background research, made suggestions for a prototype test, and will assist with future phases. The client prides Helpful Human on being responsive. 

    "Their experience and expertise played a major part and they were thoughtful and insightful." – Owner, Technology Startup 

    Former clients
    Rudy's
    naturewise
    Elm Coffee Roasters
    Holland America Line
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Seattle, WA
    5.0
    5.0
    1 Clutch review
Tell us about your project
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 a Manifest Analyst.

TELL US ABOUT YOUR PROJECT