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Best Washington Staff Augmentation Company Rankings
11 Companies - Rankings updated: April 01, 2026
DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.
Modern IT. Built Secure. Delivered Right.
Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, high-impact tech initiatives. We solve complex challengeslegacy bottlenecks, tech debt, talent gaps, compliance risks, and system fragmentation. [... see all Zazz reviews ]- Location
- Seattle, Washington
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $45/hr
- Portfolios Count
- 36 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsZazz Services
Reviews verified by DesignRush and sourced from the agency's profileZazz Reviews & Testimonials
Mobile App Development Review from Sam Zaid
Their team's technical proficiency and creativity have significantly contributed to the success of our world's first connected carsharing marketplace. Zazz not only met but exceeded our expectations, delivering a seamlessly integrated and user-friendly mobile app that has truly empowered people to carshare everywhere. The collaboration with Zazz has proven to be a valuable partnership, marked by open communication, timely delivery, and a genuine dedication to our mission.
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Mobile App Development Review from Jay Thrash
Their unparalleled expertise and dedication to excellence were evident throughout the entire collaboration. Zazz's team consistently demonstrated a deep understanding of our vision, translating it into a seamless and innovative mobile application. Their commitment to quality and precision in every aspect of the development process was truly impressive. Zazz's ability to navigate complex challenges with agility and deliver solutions that exceeded our expectations was instrumental in the success of our project.
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Mobile App Development Review from Don Harmon
Zazz's commitment to delivering a high-quality mobile app for Dorel Juvenile was evident throughout the entire development process. The team consistently communicated progress, promptly addressed any concerns or modifications, and ensured that the final product not only met but exceeded our expectations. The mobile app developed by Zazz not only showcased cutting-edge technology but also reflected a deep understanding of the child-centric focus that Dorel Juvenile upholds.
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Data sourced from the agency's DesignRush profileJP Morgan BBC News PayPal Harvard Innovation Labs HBO Jeddah Season McDonald's NBA Honda Citibank
Revolutionizing Mobile Solutions with AI-Powered Innovation for Your Business
At Mobcoder, we help our clients realize the potential of rapidly evolving mobile technologies, from developing an app strategy to launching mobile applications. We have the expertise to take the app development plan through the mobile product design, development, testing and launch phases. [... see all Mobcoder reviews ]- Location
- Seattle, Washington
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMobcoder Services
Reviews verified by DesignRush and sourced from the agency's profileMobcoder Reviews & Testimonials
Mobile App Development Review from Ousmane Ouane
End to End Development of multiple mobile and IoT applications, including APK and SDKs for fitness devices and much more. Successful release of apps, development of SDK and APK for fitness devices, and onboarding of thousands of Sportstech customers. Mobcoder was easy to work with, professional, and committed. It was a joy to work with them.
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Mobile App Development Review from AJ Greenberg
Mobcoder is a great team to work with. They are professional, responsive, and able to execute any of your development needs. We've worked with several different developers on the team and they all have exceptional character. Definitely recommend working with them!
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Software Development Review from Brandon Straza
Mobcoder has been amazing to work with. Their communication as well as their follow through is unlike any other team we've worked with to develop our platform. They were prompt, thought for themself, and brought us their own ideas as well. They worked side by side throughout the entire process. We look forward to a continued relationship moving forward.
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Data sourced from the agency's DesignRush profileCult.fit University of Washington Coinstar Optus Emami Frank Ross Ltd. Unicef Hero Electronix WELSPUN PAPA JOHN'S Professional Beauty Group
Meet The Partner Behind Your App's Success | Make It App'n!
Meet your award-winning app development team, dedicated to turning your vision into scalable and profitable digital apps and software. [... see all Chop Dawg reviews ]- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 52 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsChop Dawg Services
Reviews verified by DesignRush and sourced from the agency's profileChop Dawg Reviews & Testimonials
Mobile App Development Review from Angela Odden
Partnering with ChopDawg was hands down one of the smartest moves I've made. From day one, Joshua and Leo Lopez treated my idea with the kind of care and creativity you dream of finding in a development team. What started as a simple concept quickly became something visually stunning beyond anything I imagined.They never made me feel like just another client. Every question we had big or small was met with patience and insight. Their feedback was always honest, their communication consistent, and their commitment unwavering. Weekly Zooms were productive and on point, and their follow through was exceptional. It's clear they don't just build products, they build relationships. And were so grateful for that.
Show moreMobile App Development Review from Jeff Gillis
Chop Dawg did an amazing job on not only my app design, but my overall business plan when I hired them. Being a novice in the app world and coding world, they helped me understand what my business plan and app needed to be successful. When it is your baby, you get overprotective and think you are right, but they say when starting a business always surround yourself with experts in the field you are entering, because you are no expert. Chop Dawg and CEO Joshua are experts. They know how design a beautiful app and make sure it is competitive in the marketplace and show you all the intricacies of development to launch. They are great at what they do...just look at their apps! They walk you through the whole process, hold your hand and make sure you are happy with the final product. Any problems that do arise, they are always available and work side by side with you. Not only is your app your baby / business, but it is Chop Dawgs as well!
Show moreThink Big's Review Sourced from Google
Your company is being targeted with fake 1-star reviews by an overseas group.The same thing happened to me. Reach out to support. They were able to remove all of mine.You don’t deserve this. What they’re doing is wrong.
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Data sourced from the agency's DesignRush profileAlpha Paw Big Brothers Big Sisters Choice Home Warranty City of Peachtree Corners, Georgia City of Philadelphia, Pennsylvania City of Springboro, Ohio CRBO FlynnO'Hara Hilton Innovative
We Make the Impossible Case Possible.
Matellio is a leading software engineering studio, recognized globally for delivering intelligent solutions powered by Artificial Intelligence and Machine Learning. We specialize in developing customized AI solutions tailored to various needs of businesses under different industry verticals. [... see all Matellio Inc. reviews ]- Location
- Seattle, Washington
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 26 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMatellio Inc. Services
Reviews verified by DesignRush and sourced from the agency's profileMatellio Inc. Reviews & Testimonials
Web Development Review from Undisclosed
Matellio is one of the best organizations I have had a chance to work with. Their unique approach to becoming an integrated extension of our corporate programming staff provides us with the ability to design and implement solutions in an ever changing environment.
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Data sourced from the agency's DesignRush profileHewlett Packard Enterprise Tracking Genie Brideside Air Fusion vCard Global Codexa PTGI INSPRO NERVVE GoShow
Seasoned Senior Developers Specialized In Kubernetes And Cloud Solutions
At Pelotech, we're a team of seasoned senior developers specialised in Kubernetes and cloud solutions. We partner with companies, from Fortune 500 giants to mid-sized businesses, to solve complex challenges in cloud migration, integrations, application development and modernisation initiatives. [... view Pelotech profile ]- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPelotech Services
Data sourced from the agency's DesignRush profileUltimate Knowledge Institute Smartsheet Warby Parker Starbucks Nordstrom T-Mobile Millipore Sigma GameStop STEM Learning UK Fred Hutch Cancer Center
Propel Your Business Forward
SlickDevs is a premier custom software development company specializing in transforming innovative ideas into robust, scalable applications. With a dedicated team of experts, we provide comprehensive solutions tailored to meet the unique needs of tech startups, mid-market companies, and enterprise [... view SlickDigital profile ]- Location
- Bellevue, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSlickDigital Services
Data sourced from the agency's DesignRush profileOracle Snap Inc. Amazon Palo Alto Networks Airbnb Miami-Dade County
Accelone Advancing What's Possible
Embark on your digital transformation journey with AccelOne's Software Development delivery model, strategically designed for optimal outcomes. Initiate your digital transformation seamlessly through our comprehensive nearshore and US-based services. [... view AccelOne profile ]- Location
- Seattle, Washington
- Number of Employees
- 100 - 249
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAccelOne Services
Reviews verified by DesignRush and sourced from the agency's profileAccelOne Reviews & Testimonials
Gustavo Lemos's Review Sourced from Google
I've been working in AccelOne for several years already and it's an amazing place to work. Great people and a good variety of clients.
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Data sourced from the agency's DesignRush profileHSBC Xapo University of Washington Pan American Energy SL Cartoon Network
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. [... view Prime Consulting profile ]- Location
- Tacoma, Washington
- Number of Employees
- 50 - 99
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPrime Consulting Services
Reviews verified by DesignRush and sourced from the agency's profilePrime Consulting Reviews & Testimonials
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.
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Data sourced from the agency's DesignRush profileIT Industry Fintech Industry Staffing Industry
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 [... view KIS Solutions profile ]- Location
- Bellingham, Washington
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKIS Solutions Services
Data sourced from the agency's DesignRush profileThe After Auction Unilever Spaces Plenum
Tech Giants need talent. VitalSource IT delivers.
Since 2010, VitalSource IT has emerged as the #1 direct placement IT services staffing partner for tech giants such as Amazon.com, eBay, Nest, Twitch, and Zillow Group. We credit our success to strong, lasting partnerships with top companies and talented technical professionals. [... view VitalSource IT profile ]- Location
- Kirkland, Washington
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsVitalSource IT Services
Reviews verified by DesignRush and sourced from the agency's profileVitalSource IT Reviews & Testimonials
Victor Ilyukevich's Review Sourced from Google
Doesn't seem to be very competent. I keep receiving recruiting emails from them with always wrong spelling of their client's name in multiple places.
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Data sourced from the agency's DesignRush profileNest Labs eBay Amazon
Transforming Ideas into Innovation: A Holistic Services Provider You Can Trust
Softech Systems has been delivering excellence to the world since 1998. We have served every continent with our expert services and competence. For utmost satisfaction of our clients, we ensure tailored and contemporary services. [... view Softech Systems Pvt Limited profile ]- Location
- Virginia, Washington
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSoftech Systems Pvt Limited Services
Data sourced from the agency's DesignRush profileNestlé Facelift Ericsson Databank Calbank J.P. Morgan Ogoul Technology VAF Compliance Fidelity Bank Stanlib
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About The Author and Expert Reviewer
Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.
Sanja Srećković is an HR professional who utilizes her background in cultural anthropology to develop practical and successful HR methods for businesses. She served as a talent acquisition specialist at Petnica Science Center, then worked at SAT, an employment agency, where she successfully hired 100 people in just six months. She now employs her expertise in HR operations and management, talent assessment, and full-cycle IT recruitment to scale the teams and recognize top talent at DesignRush.
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