Looking for a top software developer 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.

List of the Best Seattle Software Developers

  • 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)

  • 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.

  • 2

    Esteemed

    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+
    group250 - 999 Employees
    place Olympia, WA
    4.8
    4.8
    6 Clutch reviews
  • 3

    Beyondsoft Consulting Inc.

    Beyondsoft Consulting is a business IT and consulting company based in Bellevue, Wash., with offices in Torrance, Calif.; Singapore; Beijing; Noida, India; and Kyiv, Ukraine. The company, founded in 1995, has more than 10,000 employees and provides BI & big data consulting & SI, cloud consulting & SI, IT strategy consulting, custom software development, and enterprise app modernization services. Beyondsoft Consulting serves enterprise and mid-market companies in various industries that include IT, automotive, and financial services.

    Notable Project

    A business solutions company hired Beyondsoft Consulting to help develop a platform on Adobe Experience Manager (AEM) and provide technical support. The Beyondsoft AEM team did the architectural design and the actual development process. They also provided AEM training to the company's internal team. Throughout the engagement, Beyondsoft Consulting met expectations with their work.

    "The depth of technical expertise, coupled with 20 years of experience (which come with a lot of case studies), makes them stand out." - Co-Founder & Director, Business Solutions Company

    Former clients
    HP
    Microsoft
    Tokio Marine
    Team Health
    $ $ $ $ $
    equalizer $10,000+
    group10,000+ Employees
    place Bellevue, WA
    4.8
    4.8
    6 Clutch reviews
  • 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
    ;University of Washington
    Expedia
    Whitepages
    $ $ $ $ $
    equalizer $25,000+
    group2 - 9 Employees
    place Seattle, WA
    5.0
    5.0
    1 Clutch review
  • 6

    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

  • 7

    Bilberrry

    Founded in 2010 in Seattle, Billberry is a software development studio creating custom software, web apps, and digital products in partnership with some of the world's biggest brands. They have a veteran team of fewer than 50 strategists, designers, and developers who work in partnership with clients to help them grow, innovate, and move their businesses forward. Clients include businesses of all sizes in various industries, including business services, consumer products and services, and financial services.

    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
    Deloitte
    Lockheed Martin
    OfferUP
    University of Washington
    impinj
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Seattle, WA
    5.0
    5.0
    20 Clutch reviews
  • 8

    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
  • 9

    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
  • 10

    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
    17 Clutch reviews
  • 11

    Climbax Entertainment Private Limited

    Climbax Entertainment Private Limited is a New Delhi based digital development company that was founded in 2013. Their team of 12 employees specializes in custom software development, mobile app development, and web development. They primarily work with small business clients in the hospitality, gaming, and healthcare industries. 

    Notable Project

    Climbax Entertainment Private Limited upgraded the website of a high-tech equipment retailer. They provided development services and created content for the site to improve the client’s digital presence. The client reported that they had received increased interest and responses from potential customers since the new site launched. 

    “Their strong technical skills and on-time delivery were unparalleled.” – CEO, High-Tech Equipment Retailer
     

    Former clients
    Anytime Fitness
    H2O Plus
    The Design Factory
    Indian Air Force
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Redmond, WA
    5.0
    5.0
    1 Clutch review
  • 12

    Neudesic

     Neudesic is a technology company with offices in Irvine, CA, Atlanta, GA, Chicago, IL, Irving and Houston, TX, Denver, CO, Las Vegas, NV, Exton, PA, Tempe, AZ, Portland, OR, New York, and India.  It specializes in big data consulting, custom software development, cloud consulting, and mobile app development. The agency of more than 800 employees was founded in 2002. Most clients work in the healthcare, energy, and gaming industries. 

    Notable Project

    Neudesic upgraded a recipe website to an efficient Cloud platform.  The system makes available to users a variety of easily accessible recipes, reviews, videos, and shopping lists. These content offerings are customized and can be set to fit users' specific preferences. The website has been growing consistently since Neudesic began their involvement. 

     

    Former clients
    Hasbro
    American Cancer Society
    Hyatt
    Xerox
    $ $ $ $ $
    equalizer $25,000+
    group250 - 999 Employees
    place Seattle, WA
    4.0
    4.0
    1 Clutch review
    Awards

    Microsoft Gold Partner , Nintex Partner Awards: Business Acceleration (2016, 2017)

  • 13

    Lunarbyte.io

    Lunarbyte.io is a development agency based in Seattle. Since 2019, the 3-person team has built websites, custom software, and mobile apps for predominantly small businesses.  

    Notable Project

    Lunarbyte.io developed payment systems, mailing solutions, and deliverability functionality for a flight deals platform. They also provided support with WordPress. The client's business more than doubled as a result. 

    "Everything they do is delivered well, and they aren’t stressed about the production process. Those are qualities you can’t buy." – COO, Flight Deals Platform

    Former clients
    Preflight Mitigator
    Dollar Flight Club
    Storytellers for Change LLC
    $ $ $ $ $
    equalizer $25,000+
    group2 - 9 Employees
    place Seattle, WA
    5.0
    5.0
    7 Clutch reviews
  • 14

    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
    2 Clutch reviews
  • 15

    Zwinny

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

    Notable Project

    Zwinny is currently developing a social networking mobile app for car aficionados. The team also did development work fixing a client's previous project that was terribly handled by another vendor.

    "I’d highly recommend Zwinny. Their work has allowed me to focus on other parts of my business."

    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Seattle, WA
    5.0
    5.0
    1 Clutch review
  • 16

    Purely CRM

    Purely CRM is a Microsoft Dynamics 365 CRM firm based in Vancouver. Founded in 2014, their team of around 14 employees provides CRM consulting, cloud consulting, and custom software development services.

    Notable Project

    The team transitioned a development company to a Dynamic 365 in Azure Cloud environment and continues to provide consulting services as needed. Their considerable level of expertise in cloud consulting ensured a seamless, predictable engagement that met all requirements.

    Former clients
    MAINT S.A.
    TEXCAN
    XYPEX
    $ $ $ $ $
    equalizer $75,000+
    group10 - 49 Employees
    place Seattle, WA
    5.0
    5.0
    2 Clutch reviews
  • 17

    ProCogia

    ProCogia is a data analysis solutions company based in Vancouver, Canada, with an office in Seattle. The company, founded in 2013, has a team of around 30 that provides AI, BI & big data consulting & SI, cloud consulting & SI, custom software development, and IoT development services. ProCogia serves small and mid-market companies in various industries.

    Notable Project

    A telecommunications company hired ProCogia to create advanced analytics using machine learning and certain data science models. ProCogia also did several prototype work. The engagement has enabled the company to make several network improvements based on the data gathered by ProCogia.

    "ProCogia’s work is usually very detailed. They love working with the data. They understand the problem statement from the beginning," - Senior Manager, Telecommunications Company

    Former clients
    Starbucks
    CLA
    Microsoft
    Bill & Melinda Gates Foundation
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Bellevue, WA
    4.8
    4.8
    2 Clutch reviews
  • 18

    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

  • 19

    Zazz

    Zazz is a Seattle-based mobile app development company founded in 2011. They have an additional office in San Francisco. Their team of approximately 50 employees serves clients of all sizes and industries. In addition to app development, they also specialize in enterprise app modernization and UX/UI design.

    Notable Project

    Zazz created iOS and Android apps that connect to a Bluetooth-enabled barbecue. Users can switch the product on and off, as well as control its temperature, from their phone. The team delivered a bug-free product and great designs.

    "Besides development, they also did the UX/UI of the app and designed our logo, as well." — Chief Product Officer, Startup

    Former clients
    Inclose
    Ideal Smart
    Sparehandz
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Seattle, WA
    5.0
    5.0
    2 Clutch reviews
  • 20

    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
  • 21

    DataNeoShore

    DataNeoShore is a digital agency founded in Escazu, Costa Rica in 2016. With over 50 employees, they specialize in big data consulting, IT staff augmentation, and AI solutions for mid-market and enterprise-level companies.

    Notable Project

    DataNeoShore provided business and data analytics solutions for an IT services provider. The provider needed assistance with accessing data and cloud resources. DataNeoShore was able to work with the provider smoothly and deliver a working solution.

    “Very easy to work with the right resources, even more, qualified than expected always available to discuss work.” - Business Development Director, IT Services Provider

    Former clients
    Wal-Mart
    Avon
    Fifco
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Sammamish, WA
    5.0
    5.0
    1 Clutch review
  • 22

    HyperBeans

    Launched in 2011, HyperBeans is a website development company. The firm provides web development, mobile app development, custom software development, enterprise app modernization, and more and has a small team.
    Notable Project

    HyperBeans was hired to design a personal work portfolio. The client wanted to showcase and update the portfolio based on their preferences. The team made few mockups and worked on them within a week or two.

    "The team didn't under time the estimations and made sure the portfolio was creative and impressive."

    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place Newcastle, WA
    4.3
    4.3
    2 Clutch reviews
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