Do you need a software testing company in California to ensure the quality, functionality, and performance of your digital solutions? From Silicon Valley to the rest of the Golden State, we have assessed success stories and client reviews of top companies to build our listing and offer local businesses like yours only the top candidates. Browse our directory by industry, pricing, and team size to find the right partner for your needs.
Best California Software Testing Agency Rankings
113 Companies - Rankings updated: June 12, 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:
Software Testing
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
Comprehensive analysis done by DesignRush Agency Experts.
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.
Where Quality Meets Excellence in Software Testing
TestMatick delivers quality in software testing across a wide range of industries from finance to entertainment. With our skilled quality assurance team, we can begin testing projects of any complexity within 24 hours. Our unique mix of technical expertise, industry knowledge, and professional methodologies [... see all Testmatick reviews ]
Top Services:
Software Testing
Location
Los Angeles, California
Number of Employees
100 - 249
Average Hourly Rate
$14/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
5 Projects Listed
Testmatick Services
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Comprehensive analysis done by DesignRush Agency Experts.
Hubrick
Sweetrush
PageSuite
Doppler Labs
KEYPR
oneUp
Grape
Global-e
Data sourced from the agency's DesignRush profile
Testmatick Reviews & Testimonials
Linda Cooper Vice President Development & Operations at Daxor
5.0★
Software Testing Review from Linda Cooper
I want to commend your team for their excellent work on our recent software testing project. They were thorough, communicated well, and delivered on time. Their expertise, flexibility, and attention to detail made our software reliable and safe for our healthcare services. Thank you for your outstanding efforts!
I would like to take this opportunity to provide feedback on the recent software testing project that I had the pleasure of working on. Overall, the project was a success, and I want to commend the team for their hard work and dedication.
Helping non-technical founders find peace of mind.
Helping non-technical founders find peace of mind.
At Designli, we pair non-technical software founders with full-time, founder-aligned product teams. Software engineers, designers, and product owners who don't just speak code, they speak human. We guide you through every step with clarity, structure, and care. [... see all Designli reviews ]
TRIARE provides comprehensive services encompassing the entire software development lifecycle of WEB and MOBILE applications, along with UI/UX Design, Prototyping, Business Analysis, and software testing. [... see all TRIARE reviews ]
Custom Website Design Company. Local US-based team! We Preserve & Optimize your SEO in the Process
Custom Website Design Company. Local US-based team! We Preserve & Optimize your SEO in the Process
Services We Offer: Software, Web Applications. We have 15+ years of experience designing and developing websites and software from scratch. Our background and emphasis in behavior science allows us to creatively design websites and software systems to convert. Call us at: (916) 866-7893 for a quote! [... see all ESEOspace 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 ]
As a web development company specializing in building high-load complex products, we are passionate about sharing our expertise and keeping you updated on the latest advancements in these key areas. [... see all Singula reviews ]
With over 9+ years of experience and 1000+ happy clients, we commit ourselves to your growth. Our team of 85+ of digital marketing experts has delivered:1. 493.37% Increase In Conversions2. 140.91% Increase In Purchases3. 702.60% Increase In Conversion Value4. 180.50% Increase In New Users [... see all Webspero Solutions reviews ]
Dream X is a full-cycle software development company dedicated to building high-performance products. Founded in 2022 by Alexandr Korshykov, we partner with businesses worldwide to deliver end-to-end technical solutions. [... see all DreamX reviews ]
iVelopment delivers cutting-edge IT solutions that drive business success. With a focus on personalized service and innovative technologies, we provide tailored software development, systems integration, and IT staffing to help companies stay ahead in a rapidly evolving digital landscape. [... see all IVelopment, Inc 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 ]
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 ]
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 ]
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 ]
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 ]
Digital Consulting That Drives Business Innovation
Digital Consulting That Drives Business Innovation
Robosoft Technologies is an experience engineering company trusted by large global enterprises, ambitious startups, and mid-size companies worldwide. Our mission is to simplify every aspect of digital life, from utility services to entertainment and productivity at work. [... see all Robosoft Technologies reviews ]
Light IT provides the following services on the global tech market:- consulting clients on IT products and services- custom product and software development- provision of resources at the clients' request- software delivery and maintenance- software quality assurance [... see all Light IT 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 ]
Spiral Scout builds AI agent systems and production workflow automation for companies that need more than a proof-of-concept. 120+ engineers, 16 years of production engineering, certified Temporal Solution Provider, and creators of Wippy.ai. 612+ projects shipped. [... see all Spiral Scout 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 ]
At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future [... see all RichestSoft 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 ]
BugRaptors is a trailblazer in QA software testing services. Armed with ISO 9001:2018 and ISO 27001 certifications, our team of 200+ ISTQB-certified testers utilizes cutting-edge test automation tech and advanced methodologies. [... view BugRaptors profile ]
Mangosoft is a top offshore software agency, offering web, mobile app, and enterprise development services. With a strong track record and a global presence, we have successfully delivered 250+ projects across 30+ countries. Our tailored teams of niche experts ensure optimal results, while our transparent [... see all Mangosoft reviews ]
Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology. [... see all Tepia reviews ]
ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale. [... see all ITRex Group 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 ]
A highly recommended mobile app development company
A highly recommended mobile app development company
Blue Label Labs is a premier digital product agency, providing a comprehensive array of services to transform businesses in the digital realm. With a strong global presence, we specialize in mobile app development, especially iPhone app development, publishing app development, web design, and product [... view BlueLabel profile ]
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 ]
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 ]
Qulix Systems, an international software testing and development company, boasts a strong presence across the US, UK, Belarus, and Estonia. Specializing in custom software solutions, mobile application development, software quality assurance, integration, and UX/UI design, we focus on sectors like banking [... view Qulix Systems profile ]
DeviQA has been supporting customer success stories for over 16 years, protecting and safeguarding our customers' brand and hard-fought reputation through best-in-class testing and quality assurance services. [... view DeviQA profile ]
Curl Ware, your one-stop shop for all your web development and design needs.
Curl Ware, your one-stop shop for all your web development and design needs.
Our team of experts focuses on delivering top-quality services to our clients, ensuring that they receive the best results. We aim to help businesses and individuals build their online presence through effective website development, optimization, and design. Our mission is to exceed our client's expectations [... view Curlware profile ]
Top Healthcare Product, Technology, & Venture Design Firm
Top Healthcare Product, Technology, & Venture Design Firm
Sidebench is the top healthcare technology design and software engineering firm in the US. We combine strategy, design, technical architecture at every point of our process. We are known for delivering extraordinary business results. [... see all Sidebench reviews ]
CodeStringers is an uncommon software development firm that brings innovation, craftsmanship, and integrity to the development of best-in-class cloud, web and mobile software products. We provide end-to-end product strategy, release planning, software development and quality assurance solutions. [... see all CodeStringers 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 ]
Excellence in Software Testing, Integrity in Every Action
Excellence in Software Testing, Integrity in Every Action
Mindful QA, based in the USA, offers on-demand software testing services by an all-American team. With expertise in manual, automated, performance testing, and UX consulting, we've worked with clients like Google, Microsoft, Hulu, and Zillow. Our commitment to responsibility includes being carbon-neutral and [... view Mindful QA profile ]
Apiko is a digital transformation consultancy & software development partner that develops highly-performing solutions for enterprises, focusing on scalability, innovation, and transparency of actions. Using our deep domain knowledge and cutting-edge software engineering culture, we work in close partnership [... see all Apiko reviews ]
Azilen Technologies is a prominent enterprise AI development company that takes pride in delivering exceptional AI, Data, and HRTech solutions to organizations seeking digital transformation. [... view Azilen Technologies profile ]
First Line Software is a global AI services and technology partner helping organizations become AI-First.Since 2010, weve worked with enterprises and high-growth companies to design, build, and scale custom software and AI-driven solutions that deliver measurable business outcomes. [... see all First Line Software reviews ]
Saritasa is a leading custom software development company offering a wide range of services, including mobile development, web development, AR/VR development, IoT solutions, DevOps, custom development, and database development. [... see all Saritasa reviews ]
Coreteka is an IT services provider with R&D offices in Eastern Europe and 8 years of experience in custom software development. We have offices in Irvine (the USA), Wroclaw (Poland), and Kyiv (Ukraine). [... view CoreTeka profile ]
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.
Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.
-thumb-webp.webp)
-thumb-webp.webp)
-thumb-webp.webp)
-thumb-webp.webp)
-thumb-webp.webp)
-thumb-webp.webp)
-thumb-webp.webp)
-thumb-webp.webp)
-thumb-webp.webp)
