Looking for staff augmentation services in California to enhance your team's capabilities? DesignRush is here to help you connect with trusted agencies that have partnered with brands like VMware and Pizza Hut. With over 1M monthly visitors and 40,000+ vetted agencies, our platform is designed to help you find the right talent for your needs. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.
Best California Staff Augmentation Company Rankings
147 Companies - Rankings updated: July 05, 2026
DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.
Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo helps businesses build intelligent apps by providing top-tier developers skilled in AI, data engineering and enterprise web & mobile applications. Our expertise has earned the trust of industry leaders like Facebook, Twitter, Discovery, Zynga, and NCSoft. [... see all Azumo reviews ]
Top Services:
Staff Augmentation
Location
San Francisco, California
Number of Employees
100 - 249
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
Azumo Services
AI Development
Software Development
Staff Augmentation
Mobile App Development
Big Data Analytics
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Discovery Channel
Meta
Zynga
Jostens
Assembled Brands
NGL
NCSoft
Twitter
Horoscope.com
Bento
Data sourced from the agency's DesignRush profile
Azumo Reviews & Testimonials
Michael S. Director at Software Development Company
5.0★
Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.
Anonymous VP Product & Engineering at Sales & Mktg Software Company
5.0★
Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
We help our partners turn complex challenges into intuitive digital products through strategy, UX/UI design, and product development. We've successfully launched 500+ products and helped raise over $1B in funding and counting. [... see all Goji Labs reviews ]
Top Services:
Staff Augmentation
Location
Los Angeles, California
Number of Employees
50 - 99
Average Hourly Rate
$149/hr
Portfolios Count
18 Projects Listed
Goji Labs Services
Mobile App Development
Software Development
UI/UX Design
AI Development
Web Design
Product Design
Digital Strategy
Web Development
Blockchain
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
World Wildlife Fund
K-ID
City of Los Angeles
TGS
Kangarootime
World Health Organization
Prediction Strike
American Kennel Club
Youth on Their Own
Root Insurance
Data sourced from the agency's DesignRush profile
Goji Labs Reviews & Testimonials
Michael Krone Founder at ADAK Athletic
5.0★
Web Design Review from Michael Krone
We partnered with Goji Labs for a complete app build, and they delivered exactly what we needed. Their team handled the entire project professionally and with great care from start to finish. I would highly recommend Goji Labs to anyone seeking a skilled and dependable development partner.
We brought Goji Labs on board for a major migration project, and the entire experience was smooth and well-managed from start to finish. We could not be happier with the results. Their expertise gave us confidence throughout the process, and we would not hesitate to work with them again.
As a founder with just an idea and a business model, I needed a partner who could turn that vision into a real product. Goji Labs guided me through every step of the process and built exactly the app we needed. Their expertise and patience made the entire journey manageable and rewarding.
Enterprise Software & AI Engineering - Silicon Valley Rigor, Nearshore Speed
Cheesecake Labs provides staff augmentation for mid-size enterprises and Fortune 500 companies that need senior engineering talent without the time and cost of full-time hiring. The talent roster spans frontend and backend development, mobile engineering, UX/UI design, DevOps, data engineering, AI, and ML. [... see all Cheesecake Labs reviews ]
Top Services:
Staff Augmentation
Location
San Francisco, California
Number of Employees
50 - 99
Portfolios Count
13 Projects Listed
Cheesecake Labs Services
Mobile App Development
Software Development
AI Development
Staff Augmentation
Blockchain
Managed Services
IoT
VR/AR
Big Data Analytics
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
MoneyGram International
Stellar Development Foundation
Wedgewood Pharmacy
Mutual of Omaha
Mercado Libre
AES Corporation
Bemis Manufacturing
Tapcart
Singularity University
Sodexo
Data sourced from the agency's DesignRush profile
Cheesecake Labs Reviews & Testimonials
Anonymous Director of Execution at Private Mortgage Company
5.0★
UI/UX Design Review from Anonymous
Cheesecake Labs designed a mobile app for a private mortgage company, integrating a custom rewards program and other features and building the wireframes from scratch. Internal stakeholders were satisfied with their work. They delivered everything successfully, staying within budget and going the extra mile. The team listened to feedback and excelled in communication. Overall they were collaborative and outstanding partners.
Anonymous Vice President of Product and Engineering at Blockchain Company
5.0★
Staff Augmentation Review from Anonymous
Cheesecake Labs provided staff augmentation for a blockchain company, sourcing engineers skilled in web3, APIs and PostgreSQL. They delivered high‑quality work on time, meeting the client's expectations. Their independent working style and creativity stood out. Enthusiastic, caring and strategic throughout the engagement, they ensured an effective workflow.
Anonymous Product Manager at Consumer Products Manufacturer
5.0★
Mobile App Development Review from Anonymous
Cheesecake Labs built an app for a consumer products manufacturer, focusing on UX and integrating with the client’s existing systems and databases for a seamless experience. The client now has a functional Android and iOS app with intuitive design. Cheesecake Labs meets timeline expectations and proactively communicates any issues. Their UI/UX expertise allows them to deliver results aligned with the client’s needs.
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 ]
AppMakersUSA is a US-based full-service mobile application development company. We specialize in building cross-platform websites and apps (meaning iOS & Android for the price of one), informing your business decisions from a technical perspective, and being transparent in our process & thinking. [... see all AppMakers USA reviews ]
BitsWits is the top mobile app development company in the US, creating innovative mobile applications that help businesses across industries increase efficiency, engagement, and sales. Our top mobile app developers utilize cutting-edge technologies to build high-performing, intuitive mobile solutions that [... see all BitsWits reviews ]
Your trusted partner for AI development and staffing
Your trusted partner for AI development and staffing
Diffco is a San Francisco-based company specializing in AI, custom software development, and staffing services. With more than 17 years of expertise in creating dependable solutions for mobile, web, and AI applications, it is committed to driving and supporting the growth of your business. [... see all Diffco reviews ]
Meet The Partner Behind Your App's Success | Make It App'n!
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 ]
Since 2013, we've delivered 300+ digital products across 17 countries, empowering brands like Porsche, Panasonic, Transparency International, Heinemann, CBRE, and dozens of ambitious startups and scaleups. [... see all Empat reviews ]
TekRevol is a globally recognized digital innovation company with 10 years of experience delivering high-impact mobile applications, AI-powered software, and scalable digital products. Every engagement begins with a clear roadmap, defined KPIs, and a commitment to measurable business outcomes. [... see all TekRevol reviews ]
TruAdvantage is a Bay Area based, award-winning IT firm specializing in managed IT, managed Cybersecurity, cloud solutions and strategic IT . Our passion is to bring enterprise-level productivity, simplicity, scalability, and security to over 100 businesses that have chosen us as their IT partner. [... see all TruAdvantage reviews ]
Right Tail provides a high-performance Product Software Development and IT Staff Augmentation team built for speed, precision, and outcomes. We partner with startups, scale-ups, and enterprise technology companies to design, build, and scale world-class digital products. [... see all Right Tail reviews ]
EffectiveSoft is an AI-enabled product engineering company focused on digital products and enterprise systems. We combine software engineering, UX expertise, and AI capabilities to help companies build products that can adapt to changing requirements, integrations, and growth. [... see all EffectiveSoft reviews ]
Solving complex problems with design and technology since 2005.
Solving complex problems with design and technology since 2005.
We craft digital products that streamline your processes, expand your customer base, and drive business growth. Strategically located within your reach, we'll take your ambitious project from an intriguing idea to an outstanding success stories. [... see all Infinum reviews ]
We Build Innovative Products for Startups and Larger Brands
We Build Innovative Products for Startups and Larger Brands
There are a lot of choices when it comes building a software product. The reason people choose ScrumLaunch is because of our high touch approach, high quality work and most importantly, because we have built our own software products and have a deep understanding of how to succeed with iterative, rapid [... view ScrumLaunch profile ]
AI-Native App & Enterprise Software Development Company
AI-Native App & Enterprise Software Development Company
TechAhead, a global leader in AI-powered custom software development & cloud engineering services, trusted by Fortune 500 companies and enterprises worldwide. We are a Great Place to Work-certified company with 240+ experts and 16 years of experience in engineering innovative, scalable applications. [... see all TechAhead reviews ]
At Vention, unparalleled customer care isnt just a promise its our mission. We blend personalized experience, unwavering attention to detail, and a genuine passion for your business, ensuring that every aspect of our collaboration is tailored to your success. [... see all Vention reviews ]
Enterprise AI Solutions | Scalable . Flexible. Sustainable
Enterprise AI Solutions | Scalable . Flexible. Sustainable
Seasia Infotech is a global AI-powered digital engineering company with 25+ years of experience delivering custom software, AI solutions, cloud applications, mobile apps, and enterprise platforms. We help businesses accelerate innovation, improve efficiency, and drive digital transformation. [... see all Seasia Infotech reviews ]
Leading the AI Revolution in Healthcare & Enterprise Solutions
Leading the AI Revolution in Healthcare & Enterprise Solutions
Next-Generation AI Development Company - Transforming Ideas into Intelligent RealityDreamSoft4u is pioneering the future of AI-powered software development with cutting-edge Generative AI solutions that deliver measurable business impact. [... see all Dreamsoft4u reviews ]
Software Outsourcing & Development | 500+ Active Clients
Software Outsourcing & Development | 500+ Active Clients
Founded in 2009 by Nacho de Marco and Paul Azorín, BairesDev provides top 1% tech talent to a range of clients, from startups to Fortune 500 companies. [... see all BairesDev reviews ]
At Rootstrap, we help companies scale people, processes, and products through outcome-driven development. We’ve helped launch more than 750+ digital products with more than 100 million combined downloads. [... see all Rootstrap reviews ]
We deliver cutting-edge, scalable, and fully functional IoT hardware and software products and ecosystems that help clients achieve their specific objectives. [... see all Yalantis reviews ]
Top-rated Mobile Apps, AI/ML, Blockchain Development Company.
Top-rated Mobile Apps, AI/ML, Blockchain Development Company.
Junkies Coder is a leading technology solution provider across 15 countries and 50+ Rockstar Developers is our strength, We're specializing in web development, Top-rated Mobile App Development, and innovative solutions. Our experienced team is dedicated to delivering high-quality service and support to help [... see all Junkies Coder reviews ]
Clear your backlog and ship products you're proud of faster with our nearshore software development resources. We provides highly skilled, team-based resources to companies that need tech talent fast. [... see all Admios reviews ]
A Reliable Full-Service Software Development, Cloud, DevOps and QA Partner
A Reliable Full-Service Software Development, Cloud, DevOps and QA Partner
Leveraging 30 years of excellence designing, developing, deploying and supporting world-class software solutions, Kanda Software has established itself as a trusted Software Development, Cloud Engineering, DevOps and QA partner for companies ranging from innovative startups to large enterprises. [... see all Kanda Software reviews ]
Talentica Software is a leading product engineering company that helps startups, growth-stage, and technology companies build end-to-end products and achieve business outcomes. The company has specialized in AI & Machine Learning, Generative AI, Data Engineering, Blockchain, and Big Data [... see all Talentica Software reviews ]
ZAAG SYSTEMS delivers scalable web, mobile & AI solutions with sleek design, driving business growth for US startups. [... see all ZAAG SYSTEMS reviews ]
ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide. [... see all ThirdEye Data reviews ]
Trusted IT Partner for SMBs & Enterprises Since 2001 | Dedicated Teams | Industry-Specific Solutions
Trusted IT Partner for SMBs & Enterprises Since 2001 | Dedicated Teams | Industry-Specific Solutions
Altoros is a 350+ person strong IT consulting and development group. For over 20 years, we've been assisting Global 2000 organizations in getting software products to market faster and reducing the cost of R&D experiments to enable stable business growth. [... see all Altoros Labs reviews ]
Software & Mobile Application Development Company.
Software & Mobile Application Development Company.
Rushkar Technology Pvt. Ltd. is a premier software development company based in India, renowned for its commitment to delivering high-quality, timely, and cost-effective offshore software and mobile application solutions. At Rushkar, we prioritize long-term relationships and client satisfaction, ensuring that [... see all Rushkar Technology Pvt. Ltd. reviews ]
Dubai-headquartered technology company specialising in AI, Blockchain, Web & Mobile, and DevOps solutions. 14+ years delivering enterprise-grade digital products for clients across the US, UAE, and UK. [... see all Candour Technolabs reviews ]
Yellowstone Labs provides software staff augmentation with long-term, full-time engineers. With zero turnover for over 15 years, we deliver stable, high-quality development at an exceptional value. [... see all Yellowstone Labs reviews ]
We serve good projects and provide guaranteed quality and customer care
We serve good projects and provide guaranteed quality and customer care
At our company, we believe in being flexible and adaptable to our clients needs. We understand that every business is unique, and we work closely with our clients to deliver tailored solutions that meet their specific requirements. Our team is available 24 hours a day, seven days a week, to ensure that our [... see all Tessafold reviews ]
Our IT recruiting agency, ITExpert, specializes in finding highly skilled IT specialists all over the world. This way, you can save time and focus on business development instead of searching for employees and micromanaging. [... see all ITExpert Recruitment Agency reviews ]
With a strong team of over 120 experts and developers spanning across 5 countries and headquartered in the vibrant city of New York, Jafton is a dynamic technology firm. [... see all Jafton reviews ]
Since 2002 in the software development business. Companies from 27 industries choose us.
Since 2002 in the software development business. Companies from 27 industries choose us.
With over 20 years of industry experience, Gecko Dynamics is a trusted partner for startups and enterprises. Our team delivers end-to-end solutions using Java, Angular, Flutter, and AWS. From ideation to post-launch support, we're dedicated to driving progress for our clients across industries. [... see all Gecko Dynamics reviews ]
A Top-Class Google App Engine Development Company!
A Top-Class Google App Engine Development Company!
Etelligens is an industry-leading custom software and Google app engine development company known for its reliable mobile and web development that delivers innovative solutions. [... see all Etelligens Technologies reviews ]
Yellow has a track record of assisting Y Combinator startups, Fortune 500 companies, and various clients. Get in touch with us to know more! [... view Yellow Systems profile ]
Your Trusted Partner in Software Development, Product Design and QA
Your Trusted Partner in Software Development, Product Design and QA
inVerita is a global software, AI, and data engineering company with 150+ engineers across Europe, the USA, and Latin America(Colombia). We build secure, scalable solutions for healthcare, fintech, logistics, retail, defense, and e-learning. [... view InVerita profile ]
We are a full-cycle IT development company that designs and creates perfect solutions based in the US with HQ in Walnut, California. Our experience in diverse marketplaces allows us to offer high-level service to our clients with a clear understanding of their need for flexibility, speed, and agility. [... see all Ptolemay reviews ]
RiseServ provides unique and custom software solutions as web-applications, mobile applications, web-portals for medium and small businesses in US, Canada and Europe. Se stand with US small businesses of all industries, helping them recover from the pandemic and rise their sales to levels higher than ever. [... see all RiseServ reviews ]
With 1000+ successfully delivered projects for clients such as Go plc, Amika, Tom Ford, Burberry, Boost.ai, GTO Lab, Dr. Oetker, Aveda, T-Mobile, and La Mer, Master of Code Global stands among the leading AI development companies with a strong product mindset. [... see all Master Of Code Global reviews ]
Developer Bazaar Technologies is a Top AI Development company building custom Mobile App & Software Development and specializing in building AI Solutions delivering mesurable outcome. [... see all Developer Bazaar Technologies reviews ]
AI | Gen-AI | Blockchain | IT Staff Augmentation | Mobile App
AI | Gen-AI | Blockchain | IT Staff Augmentation | Mobile App
Quytech is a leader in digital innovation of global startups, SMEs, and Fortune 500 organizations. With 14+ years of experience and strong technology expertise, we deliver digital-first experiences that help businesses stay competitive.View the Quytech Reviews, Portfolio, and Services [... see all Quytech reviews ]
We are global web3.0 Software engineering company making success stories for more two decades with highly motivated and experience teams and a proven agile framework. we prioritize the commercial goal of our customer deliver the highest business value. we are a renowned blockchain app development company in [... see all NetSet Software Solutions reviews ]
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.
