DesignRush expert analysts recognized the top software development companies in Washington that create high-performance solutions for businesses of all sizes and across industries. Find the right software development partner based on average project cost, reviews and more.

Best Washington Software Development Firm Rankings

10 Companies - Rankings updated: August 30, 2026

DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.

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  • ELEK+RIK

    High Voltage Code Since 2010

    ELEK+RIK: Web App Development, Mobile App Development for iOS & Android, AI Integration & Development Experts for Long-Term US Projects since 2010...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • VR/AR
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    18 Projects Listed

    ELEK+RIK Services

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • VR/AR
    • AI Development
    • eCommerce Development
    • Software Testing
    • IT Services
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Coca - Cola
    • Mercedes
    • BMW
    • VeChain
    • Sony
    • Nike
    • Toyota
    • Hyundai
    • McDonald's
    • Chang
    Data sourced from the agency's DesignRush profile

    ELEK+RIK Reviews & Testimonials

    • Philip Wilson
      Philip Wilson Managing Director at Premier Automation Ltd
      5.0 ★

      Web Development Review from Philip Wilson

      ELEK+RIK team provided a streamlined process that was both simple and enjoyable. They kept to the budget and communicated well throughout the project. ELEK+RIK comes highly recommended and we would work with ELEK+RIK again if given the opportunity.

    • George McKerrow
      George McKerrow CEO at Ted's Montana Grill
      5.0 ★

      Mobile App Development Review from George McKerrow

      ELEK+RIK has worked on improving our React Native mobile app. We had the skeleton of an app, but they were able to do an end-to-end re-design of each of the main pages. Since then, they`ve successfully implemented around ~20 different features on our mobile app. We share a spec and design, they provide an estimate and occasionally some design options, then when completed create a PR on GitHub. Their code is well-organized, easy to follow, and rarely do we have to go back-and-forth about bugs. They are also excellent communicators - carefully following threads on Slack, effectively communicating design and engineering tradeoffs, and even producing a 10m Loom video walking through a diagram. Their communication is top-notch. They are super easy to work with even though we are on very different time zones. And, I am impressed at the speed and execution of their development.

    • John Riley
      John Riley Executive Vice President at MediaCentric
      5.0 ★

      Web Development Review from John Riley

      ELEK+RIK was tasked with creating a website for our company from scratch. They were professional, communicative, and dedicated to delivering an exceptional website that perfectly captured the essence of our company while exceeding our expectations. They are a talented, reliable, and customer-focused web design and development company that I would highly recommend to anyone.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.9 4.9 (19)
    5.0 5.0 (3)

  • Accenture

    World Famous IT Services for Businesses

    Accenture is a renowned worldwide IT services company that excels in digital, cloud, and security solutions. With an extensive range of expertise across over 40 industries, we provide a comprehensive suite of services including Strategy and Consulting, Outsourcing, Interactive, Technology, IoT, and...

    Top Services:

    • Software Development
    • Cybersecurity
    • IT Services
    • IoT
    • Big Data Analytics
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up
    Portfolios Count
    4 Projects Listed

    Accenture Services

    • Software Development
    • Cybersecurity
    • IT Services
    • IoT
    • Big Data Analytics
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Education Non-profit
    • Healthcare Firm
    • Global Apparel Retailer
    Data sourced from the agency's DesignRush profile

    Accenture Reviews & Testimonials

    • Saurabh Choudhary
      Saurabh Choudhary Senior Consultant at LTI
      4.0 ★

      Financial Review from Saurabh Choudhary

      In my experience it's a good place to work and start your career with, you will get to learn a lot of things which will be quite beneficial in long run.Accenture helps clients across various industries innovate and transform their businesses. Their focus on digital technologies, such as AI, cloud, and analytics, enables them to deliver impactful solutions. Overall, Accenture's commitment to innovation and client success makes them a leading player in the consulting industry.

    • Rishi Kumar
      Rishi Kumar Sr. Servicemax and Salesforce Developer at Boston Scientific
      4.7 ★

      Salesforce Review from Rishi Kumar

      I had the opportunity to work with Accenture on implementing Salesforce with ServiceMax. Their expertise and dedication were impressive. Accenture's work on implementing Salesforce and the ServiceMax managed package was invaluable, significantly benefiting our organization's operations and efficiency. However, one area for improvement would be the documentation process. It was challenging to access comprehensive documentation, which slowed down certain aspects of our project. Nonetheless, I recommend Accenture as their talented team delivers exceptional results.

    • William Lewis
      William Lewis Review from Google
      5.0 ★

      William Lewis's Review Sourced from Google

      ISSA monthly meeting. Great venue. Good location. Extraordinary buffet at meeting. Interesting discussions. Accenture goes the mile to support our meetings and I always enjoy working with their team. By the way the view of LA is incredible.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.1 4.1 (2)
    4.9 4.9 (18)

  • Jelvix

    GLOBAL TECH PARTNER FOR DIGITAL TRANSFORMATION AND SOFTWARE INNOVATION

    Jelvix is a global tech partner with 15+ years of experience, empowering industry leaders and startups. With 450+ IT experts, we drive digital transformation across Europe, North America, Nordics, and Southeast Asia...

    Top Services:

    • Software Development
    • Mobile App Development
    • VR/AR
    • AI Development
    • IoT
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    500 - 999
    Average Hourly Rate
    $70/hr
    Portfolios Count
    10 Projects Listed

    Jelvix Services

    • Software Development
    • Mobile App Development
    • VR/AR
    • AI Development
    • IoT
    • Software Testing
    • Big Data Analytics
    • IT Services
    • UI/UX Design
    • CRM Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IKEA
    • Auchan
    • Zeiss
    • Stihl
    • Canon
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Serbyte

    More than a website, a growth engine.

    Serbyte Web Design & Development builds custom websites that function as growth systems, combining web design, Next.js development, SEO, analytics, lead capture, and automation to help businesses turn traffic into leads and sales...

    Top Services:

    • Web Design
    • SEO
    • Web Development
    • Software Development
    • UI/UX Design
    • Show more
    Location
    Kirkland, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed

    Serbyte Services

    • Web Design
    • SEO
    • Web Development
    • Software Development
    • UI/UX Design
    • Digital Marketing
    • PPC
    • AI Development
    • Design Services
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vets Choice Insurance
    • RC Concrete
    • Bespoke Tint & PPF
    • Entitled
    • Iron & Oak
    • Herbanatural CO
    Data sourced from the agency's DesignRush profile

    Serbyte Reviews & Testimonials

    • Kris Meyer
      Kris Meyer Owner at Bespoke Tint & PPF
      5.0 ★

      Small Businesses Website Development Review from Kris Meyer

      Austin rebuilt our website from the ground up and helped turn Bespoke Tint & PPF into one of the top tint brands in Bellevue. The work started with a full redesign of our website, including branding, copywriting, conversion improvements, mobile optimization, and development. The new site immediately performed better and generated more leads after launch. After the website launch, we continued working together on SEO, AI search optimization, paid advertising support, analytics, A/B testing, and ongoing marketing strategy. He also helped improve our review visibility, local search presence, and overall positioning online. What started as a website project became an ongoing growth partnership focused on increasing traffic, leads, and customer acquisition.

    • Jeff Egbert
      Jeff Egbert Review from Google
      5.0 ★

      Jeff Egbert's Review Sourced from Google

      Austin built or website fast.And it works flawless. And he is always available for you to answer any questions. Or solve any problems.great experience.

    • Uffy 666
      Uffy 666 Review from Google
      5.0 ★

      Uffy 666's Review Sourced from Google

      very innovative and solid work. this service is invaluable in the climate of an ever evolving digital landscape. will definitely be coming back again.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.3 4.3 (1)
    5.0 5.0 (8)

  • Smashing Ideas

    Driving Digital Impact, Powered by Motivational UX.

    Smashing Ideas, founded in 1996, is a Seattle-based design and innovation agency partnering with Global 500 companies. With expertise in smart products and digital experiences, their unique Motivational UX process accelerates transformation and enhances user engagement...

    Top Services:

    • Software Development
    • Product Design
    • UI/UX Design
    • Big Data Analytics
    • Cloud Consulting
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    50 - 99
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    1 Project Listed

    Smashing Ideas Services

    • Software Development
    • Product Design
    • UI/UX Design
    • Big Data Analytics
    • Cloud Consulting
    • Mobile App Development
    • VR/AR
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Johnson Controls
    • Philips
    • ReachNow
    • Sony Pictures Television
    • Penguin Random House
    • GE
    • Microsoft
    • Mattel
    • Panasonic Avionics
    • University of Washington
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile
    5.0 5.0 (4)

  • JFrog

    The #1 Event for DevOps, DevsecOps, and MLOPS

    Manage one product or one million, with JFrog's software development solutions. They help companies focus on their day-to-day assignments, while JFrog takes care of the IT challenges...

    Top Services:

    • Software Development
    • DevOps Consulting
    • AI Development
    Location
    Kirkland, Washington
    Number of Employees
    1000 & Up

    JFrog Services

    • Software Development
    • DevOps Consulting
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • nvidia
    • RedHat
    • Volvo
    Data sourced from the agency's DesignRush profile

    JFrog Reviews & Testimonials

    • Justin Lewis
      Justin Lewis Review from Google
      1.0 ★

      Justin Lewis's Review Sourced from Google

      Queueing recruiting emails to go out on Christmas day reflects a toxic work culture and poor brand management

    • Andre Polizzi
      Andre Polizzi Review from Google
      1.0 ★

      Andre Polizzi's Review Sourced from Google

      Very unprofessional place. They look down on outside couriers and give them bad reviews no matter how great and professionally you handle their delivery. Their HR department has lots of work to do.

    • Arati Nagarkar
      Arati Nagarkar Review from Google
      5.0 ★

      Arati Nagarkar's Review Sourced from Google

      Good work environment. Healthy respect for eachother. Very down to earth and humble demeaner of the management team makes JFrog a good place to work especially for women.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.0 4.0 (40)

  • Grant Thornton

    IT, Business, BPO, Audit, Tax and Advisory are just the beginning.

    Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and...

    Top Services:

    • Accounting
    • Business Consulting
    • Market Research
    • HR Outsourcing
    • Software Development
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Grant Thornton Services

    • Accounting
    • Business Consulting
    • Market Research
    • HR Outsourcing
    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Financial industry
    • Real estate industry
    • Media and Entertainment industry
    Data sourced from the agency's DesignRush profile

    Grant Thornton Reviews & Testimonials

    • Theodore Mall
      Theodore Mall Review from Google
      4.0 ★

      Theodore Mall's Review Sourced from Google

      One of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenues in excess of $1.9 billion and operates more than 50 offices.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.5 4.5 (13)

  • 9series

    Handcrafted Technology Solutions

    At 9series, we help organizations move beyond traditional software by building intelligent systems powered by AI...

    Top Services:

    • Mobile App Development
    • AI Development
    • IoT
    • Software Development
    • Cloud Consulting
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $40/hr
    Portfolios Count
    3 Projects Listed

    9series Services

    • Mobile App Development
    • AI Development
    • IoT
    • Software Development
    • Cloud Consulting
    • DevOps Consulting
    • Digital Services
    • Digital Strategy
    • eCommerce Development
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • iWayTrack
    • Overlay Planner
    • Product Tube
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Prime Consulting

    We have prime focus towards our customers need.

    Prime is founded by group of highly talented IT professional. Prime develop business applications and offers outsourcing solutions. Prime Consulting goal is to to bridge the gap between right talent with right requirement...

    Top Services:

    • IT Services
    • Staff Augmentation
    • Software Development
    Location
    Tacoma, Washington
    Number of Employees
    50 - 99

    Prime Consulting Services

    • IT Services
    • Staff Augmentation
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IT Industry
    • Fintech Industry
    • Staffing Industry
    Data sourced from the agency's DesignRush profile

    Prime Consulting Reviews & Testimonials

    • Russell “Superman” Allen
      Russell “Superman” Allen Review from Google
      3.0 ★

      Russell “Superman” Allen's Review Sourced from Google

      Pretty boring alot of free space but think they should add a dog park there. Mine sure misses Johnson Park dog park. Huber has plenty of room to put a count in to fill dog bowls. This town has nothing but movie bowling fast food and shopping. Oh and plenty of drugs if your in to that. And you wonder why everyone is on them and drinking all the time. I want to open a pool hall back up.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.0 4.0 (2)

  • Markup Designs

    Mark your Brand Up

    Global Leader in Mobile App Development & Digital Engineering...

    Top Services:

    • Mobile App Development
    • Software Development
    • Blockchain
    • AI Development
    • IoT
    • Show more
    Location
    Sammamish, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000

    Markup Designs Services

    • Mobile App Development
    • Software Development
    • Blockchain
    • AI Development
    • IoT
    • Wearables
    • Cloud Consulting
    • Product Design
    • IT Services
    • VR/AR
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Cadee Distillery
    • MD Factor
    • Sports Handicapping
    Data sourced from the agency's DesignRush profile

    Markup Designs Reviews & Testimonials

    • Harshit Sagar
      Harshit Sagar Review from Google
      5.0 ★

      Harshit Sagar's Review Sourced from Google

      What stood out to me about Markup Designs is the people. Everyone I interacted with, from the reception to senior team members, was approachable and professional. There's a real sense of teamwork here, not just a "job" mentality. Great culture.

    • Richa Pathak
      Richa Pathak Review from Google
      4.0 ★

      Richa Pathak's Review Sourced from Google

      Its been 4 months that I have been working at Markup Designs. And the experience of working here is great. The work culture, the colleagues I get to work with, everything is just very good.

    • Diksha Dureja
      Diksha Dureja Review from Google
      5.0 ★

      Diksha Dureja's Review Sourced from Google

      I went to Markup Designs for an interview and had a very good experience. The company is highly professional and well organized. The staff was polite and supportive, and the overall process was smooth. It is a well-maintained organization with a positive environment.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.0 4.0 (152)

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