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

8 Companies - Rankings updated: August 30, 2026

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

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  • Wolfpack Digital

    Powerful Tech Products Start-to-End

    Proud 2024 Webby Award winner in the Responsible AI category and winner of the European Technology Awards for App Development in 2021...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • IoT
    • Show more
    Location
    Kirkland, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    68 Projects Listed

    Wolfpack Digital Services

    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • IoT
    • UI/UX Design
    • AI Development
    • Product Design
    • IT Services
    • Blockchain
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • No7 Pro Derm Scan
    • Everon
    • Juggle
    • Brain Capture
    • Deezer
    • Equality AI
    • Citizen Mint
    • Primary.Health
    • Banqup
    • Slow Delta
    Data sourced from the agency's DesignRush profile

    Wolfpack Digital Reviews & Testimonials

    • Julie Dodkins
      Julie Dodkins CEO at Fae
      5.0 ★

      Mobile App Development Review from Julie Dodkins

      Wolfpack Digital has skilled expertise [in] creating high-quality work. The team made the process straightforward. Their communication was top-notch. They're readily available and go above and beyond. (Verified via email)

    • Jana Kazmina
      Jana Kazmina Product Manager at Makerist
      5.0 ★

      Mobile App Development Review from Jana Kazmina

      Bounce rate fell and the app received positive reviews from users. Wolfpack Digital was highly accessible via multiple modes of communication and managed the project professionally. They ensured comprehension by asking clarifying questions and demonstrated their flexibility and passion.

    • Valentin Trif
      Valentin Trif Co-founder at Sweed
      5.0 ★

      Mobile App Development Review from Valentin Trif

      The app was launched on schedule and received positive reviews. Wolfpack Digital was highly accessible and effectively managed a changing scope, while still providing multiple options for every decision. Their deep engagement, as well as their flexibility, makes them an ideal partner for startups.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.8 4.8 (7)
    4.9 4.9 (31)

  • Sigma Software

    Superior Business Solutions

    Sigma Software specializes in developing software and is a globally distributed team of more than 2000 skilled IT professionals, spanning 12 countries including the USA, Sweden, UK, Canada, Israel, Singapore, UAE, Australia, Austria, Ukraine, and more. With a track record of over 20 successful years, we take...

    Top Services:

    • Software Development
    • Web Design
    • Mobile App Development
    • VR/AR
    • Business Consulting
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    14 Projects Listed

    Sigma Software Services

    • Software Development
    • Web Design
    • Mobile App Development
    • VR/AR
    • Business Consulting
    • Web Development
    • UI/UX Design
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Knorr-Bremse
    • AstraZeneca
    • Volvo Penta
    • SAS
    • Fortum
    • Mindvalley
    • Aol.
    • IGT
    • Viaplay
    • DanAds
    Data sourced from the agency's DesignRush profile

    Sigma Software Reviews & Testimonials

    • Nikita Vershinin
      Nikita Vershinin VP of Engineering at Ankorstore
      5.0 ★

      Software Development Review from Nikita Vershinin

      We've partnered with Sigma Software for almost three years, and they proved to be a strong partner with whom we'll keep working. Their adaptability and willingness to get things done are unique, setting them apart from other providers. Moreover, they demonstrate a strong sense of ownership.

    • Michael Meyer
      Michael Meyer Managing director at trendwaerts GmbH
      5.0 ★

      Software Development Review from Michael Meyer

      We were so positively surpised and happy about Sigmas services - as usual I might add. It is a pleasure working with their software engineers. After we provided a briefing, the effort estimation came right away. Shortly after the project started we could see first tangible results. The code quality was excellent and comprehensive. Minor feedback was implemented right away. What can I say more: 10 out of 10 points!

    • Esther Howard
      Esther Howard Founder / CEO at Bezyl
      5.0 ★

      Mobile App Development Review from Esther Howard

      The client is incredibly happy with Sigma's services and work. It has referred 3 other clients who also say how much they really love the team and process to get set up with the agency. Sigma is a fantastic company with excellent experienced professionals. Its experts care about quality and customer satisfaction, and they operate like the internal team's extension. (Verified via email)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.6 4.6 (4)
    4.8 4.8 (81)

  • AutomateNexus

    Custom AI Agents & Automation for SMBs

    Veteran-owned AI automation agency offering full-stack services: AI agents, workflow automation, web development, SEO, digital marketing, CRM/Salesforce consulting, cybersecurity & self-hosted solutions. BYOK pricing from $2,500 clients own everything. No subscriptions...

    Top Services:

    • AI Development
    • Software Development
    • CRM Consulting
    • Web Development
    • Cybersecurity
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed

    AutomateNexus Services

    • AI Development
    • Software Development
    • CRM Consulting
    • Web Development
    • Cybersecurity
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Curated Travel For You
    • KourtLit
    • Techflow
    Data sourced from the agency's DesignRush profile

    AutomateNexus Reviews & Testimonials

    • Jarrell A. Green, MBA-DA
      Jarrell A. Green, MBA-DA CEO-FOUNDER at KourtLit, Inc.
      5.0 ★

      Small Businesses Website Development Review from Jarrell A. Green, MBA-DA

      AutomateNexus built our entire e-commerce website for KourtLit from scratch. We sell portable pickleball court LED projectors and needed a professional storefront that could handle orders, inventory, and customer communication. They delivered a modern, mobile-friendly site with a smooth checkout flow, backend database for order and inventory management, and automated email sequences for order confirmations, shipping updates, and follow-ups. They also set up our SEO foundation so we're positioned to rank for product searches. What stood out was their BYOK approach we own everything they built. No recurring platform fees, no vendor lock-in. They finished the entire project in July 2025 and handed it off with full documentation and training. If you need an e-commerce site built fast and built right, these are the people to call.

    • Arionne Patterson M.S.
      Arionne Patterson M.S. Owner at Curated Travel For You
      5.0 ★

      AI Development Review from Arionne Patterson M.S.

      We hired AutomateNexus to build a new website for our boutique travel agency, and they delivered far more than we expected. Erin and the team built us a custom website, client portal, and admin dashboard from scratch plus set up automations that completely changed how we run the business. Before working with them, we were drowning in manual tasks: sending confirmations, chasing documents, following up with leads. Now most of that runs automatically. The client portal lets our travelers access their itineraries and documents anytime, and the admin backend makes managing bookings so much easier. What impressed us most was the strategic thinking. They didn't just build what we asked for they helped us rethink our entire workflow and showed us where AI and automation could save us time. We're saving 15-20 hours a week on admin work we used to do manually. Communication was excellent throughout, delivery was on time, and the final product exceeded expectations. If you're a small business looking to modernize your operations without getting locked into expensive monthly software, I highly recommend AutomateNexus.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.5 4.5 (2)

  • Integrated IT Solutions

    Honesty - Respect & Reliability. Technology That Works for You As You.

    Integrated IT Solutions provides IT services that help businesses grow and thrive. With over 15 years of experience in software development, mobile apps, digital marketing, and custom integrations, were making the digital journey smooth and successful...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • Digital Marketing
    • Show more
    Location
    Clarkston, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Integrated IT Solutions Services

    • Software Development
    • Web Development
    • Mobile App Development
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Fresh Tracks Transportation
    • Delta Transportation
    • Blue Shuttle Van
    • Ride Taxi
    • Bitmaven
    • Heavenly Hands
    • A Promising Tomorrow
    • A1SC
    • Blue Birds Transportation
    • Transport Solutions
    Data sourced from the agency's DesignRush profile

    Integrated IT Solutions Reviews & Testimonials

    • Alegnta Yimam
      Alegnta Yimam Review from Google
      5.0 ★

      Alegnta Yimam's Review Sourced from Google

      Definitely recommend! Integrated has been our most reliable partner for the last five years. They designed and deployed our dispatching software from scratch, followed up, and addressed all the concerns we had. They are also handling our marketing and providing all other IT support we need. Bryan is very well-rounded and trustworthy! I wanted to give them a sixth star... but Google came up short.

    • Lauren Bo
      Lauren Bo Review from Google
      5.0 ★

      Lauren Bo's Review Sourced from Google

      I would truly recommend utilizing Integrated IT solutions. The database that they have created for my business has done wonders. The team is always ready to help whenever I reach out and guides me step by step on how to resolve any issue that may occur. I would definitely recommend!

    • Lisa Liberatore
      Lisa Liberatore Review from Google
      5.0 ★

      Lisa Liberatore's Review Sourced from Google

      Integrated IT solutions have exceeded every hope and expectation! In partnering with them to create a Web platform for my agency's 25 employees to use, not only has my workload and stress been reduced, but the platform has received raves from my employees, who love using it! I can now dedicate more time and energy towards increased growth of my agency instead of tedious paperwork. Thank you to Bryan and the whole team, they never disappoint!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (6)

  • 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
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  • KIS Solutions

    Tech too complex? We keep it simple.

    IT teams and business leaders are often at odds. This is in large part because technologists focus on technology rather than the underlying business issue. This company was founded to bridge that gap and to allow business owners the ability to fully leverage their tech stack. We offer near shore resources...

    Top Services:

    • Managed Services
    • IT Services
    • DevOps Consulting
    • Staff Augmentation
    • AI Development
    • Show more
    Location
    Bellingham, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $50,000 & Up

    KIS Solutions Services

    • Managed Services
    • IT Services
    • DevOps Consulting
    • Staff Augmentation
    • AI Development
    • Software Development
    • Software Testing
    • CRM Consulting
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • The After Auction
    • Unilever
    • Spaces
    • Plenum
    Data sourced from the agency's DesignRush profile
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  • DreamTeam Mobile

    Focused on Time and Quality.

    At our core, we specialize in planning, designing, and developing bespoke mobile and web products that drive measurable business outcomes. Our team is well-versed in all aspects of the software development process, from strategic planning and innovative user-experience design to development, pre-launch...

    Top Services:

    • UI/UX Design
    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000

    DreamTeam Mobile Services

    • UI/UX Design
    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Williamsburg Therapy Group
    • Yandex
    • In Good Hands Daycare
    • Pilot In Training Flight Academy
    Data sourced from the agency's DesignRush profile
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  • Ataira Analytics Inc

    Cloud Software and Data Analytics.

    A US Based, Veteran Owned and Operated (SDVOSB), Microsoft Partner and Cloud Solution Provider. Serving Government, Public, and Private Organizations with Business Reporting Consulting Solutions, Security and Migration Services, and Cloud Management and Productivity Software...

    Top Services:

    • Big Data Analytics
    • Managed Services
    • Cloud Consulting
    • Software Development
    • Web Development
    • Show more
    Location
    Gig Harbor, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $1,000 - $10,000

    Ataira Analytics Inc Services

    • Big Data Analytics
    • Managed Services
    • Cloud Consulting
    • Software Development
    • Web Development
    • AI Development
    • Business Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • National Aeronautics and Space Administration
    • U.S. Department of Health and Human Services
    • U.S. Department of Transportation
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

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