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.

United States × California × $25,000 - $50,000 ×Clear Filters
  • AI is easy. Systems are hard. We build systems.

    AI is easy. Systems are hard. We build systems...

    Top Services:

    • Software Development
    • AI Development
    • Staff Augmentation
    • Cloud Consulting
    • Software Testing
    • Show more
    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    20 Projects Listed

    Aristek Systems Services

    • Software Development
    • AI Development
    • Staff Augmentation
    • Cloud Consulting
    • Software Testing
    • Big Data Analytics
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Software& IT Industry
    • Energy Industry
    • Education Industry
    • Entertainment Industry
    • Health Care Industry
    • Transportation & Logistics Industry
    Data sourced from the agency's DesignRush profile

    Aristek Systems Reviews & Testimonials

    • Undisclosed
      Undisclosed CEO at E-Commerce Development Company
      5.0

      Web Development Review from Undisclosed

      Aristek Systems developed, tested, and released a new website for an e-commerce development company. The team utilized Ruby on Rails, Elixir, Phoenix Framework, JavaScript, GraphQL, PostgreSQL, and AWS. Aristek Systems was able to deliver a fully functional software, much to the client's delight. The team was highly communicative, and internal stakeholders were particularly impressed with the vendor's professionalism and attention to detail.

    • Undisclosed
      Undisclosed Product Design Manager at Educational Digital Platform
      5.0

      Web Design Review from Undisclosed

      Aristek Systems has redesigned the UI/UX of an existing educational digital platform. The team has refreshed the interface and added new features to deliver a more comprehensive experience for users. The client is satisfied with Aristek Systems' work and performance. The team delivers within the specified timeframe and manages the project seamlessly. Moreover, they stand out for their availability, problem-solving capabilities, and amazing work culture; they're easy to work with.

    • Anonymous
      Anonymous CTO at Business Consulting Company
      5.0

      Software Development Review from Anonymous

      I had the privilege of working with Ruslan and his team at Aristek for the past three years. It is hard to find that level of dedication in an offshore vendor/partner but Ruslan and the Aristek team deliver it. I would highly recommend Ruslan and Aristek to anyone needing an expert level partner in EdTech and SaaS platform development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Engineering peace of mind

    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...

    Top Services:

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Software Testing
    • Web Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    15 Projects Listed

    Vention Services

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Software Testing
    • Web Development
    • Blockchain
    • AI Development
    • Cloud Consulting
    • CRM Consulting
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IBM
    • PayPal
    • Cuvva
    • Costa Coffee
    • Memrise
    • Urban
    • Tailored Dog Food Delivery
    • RealVNC
    • Label on a Cable
    • ClassPass
    Data sourced from the agency's DesignRush profile

    Vention Reviews & Testimonials

    • Lee Tupper
      Lee Tupper CTO at Remotiv (formerly Financial Soundings)
      3.8

      Mobile App Development Review from Lee Tupper

      Vention has delivered excellent design prototypes and accurate time estimates. The app is still in beta mode, and the partnership with [...] Vention will [continue] until the release of the next version. Vention is a reliable team that offers quality service. (Verified via email)

    • Jon Wade
      Jon Wade CTO & Founder at Union54
      5.0

      Staff Augmentation Review from Jon Wade

      Vention’s efforts allowed the successful development of the product, resulting in new customers. They provided backend developers, business analysts, UI designers, and QA testers to develop our solution. Vention cultivated a seamless partnership through constant updates and a collaborative approach. Overall, their team’s well-rounded expertise was impressive.

    • AJ Canty
      AJ Canty CTO and Co-Founder at Primer
      5.0

      Web Development Review from AJ Canty

      We’ve been working with Vention for quite some time and consider them an extension of our team, rather than an offshore vendor. We needed solid mobile developers to work with our in-house engineers to build our Primer SDKs on both mobile platforms. This was not a trivial thing as it required a lot of cross-functional communication, but the Vention team was up to the challenge. They quickly adopted the best practices we follow at Primer and proved to be effective and proactive.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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...

    Top Services:

    • Mobile App Development
    • UI/UX Design
    • Web Development
    • Software Testing
    • Software Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    16 Projects Listed

    Robosoft Technologies Services

    • Mobile App Development
    • UI/UX Design
    • Web Development
    • Software Testing
    • Software Development
    • IT Services
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Warner Bros. Discovery
    • Magnolia
    • HSBC
    • Axis Mutual Find
    • Invesco Mutual Fund
    • McDonald's India
    • Titan World
    • Brightline
    • Al Maha Island
    • Room to Read
    Data sourced from the agency's DesignRush profile

    Robosoft Technologies Reviews & Testimonials

    • Issac John
      Issac John Ex-Business Head, Discovery Plus at Discovery India
      5.0

      Wearables Review from Issac John

      A global OTT provider - Discovery+ earlier this year, had a breakthrough launch in a cluttered OTT market like India with a differentiated product targeted at lifelong learners and passionate communities. The team at Robosoft played a significant role in building this multi-platform experience spanning iOS, Android, Web and Fire TVs. Their team comprises an extremely dedicated bunch of folks with a keen problem solving approach and under the stellar leadership of Ravi Teja, Jay Shah, Srinidhi Rao and Pooja Bal, they have been the kind of dependable partners that a lot of brands would be fortunate to have. I wish them and their team the best for their future.

    • Deepak Porayath
      Deepak Porayath former Head of Bangalore Operations at CapitaLand India
      5.0

      Mobile App Development Review from Deepak Porayath

      Our experience working with Robosoft has been quite good in terms of product and outcomes. With our CapitaStar@Work app for India business, the end goal was to bring our customers and their employees onto a digital platform. The objective was to integrate our solutions such as visitor, parking, and ticketing system management into a single app. CapitaStar@Work caters to our requirements and surely will make life simpler for our users. I would recommend Robosoft to others because it is a good organization to implement technological interventions in any traditional manufacturing, real estate, or brick-and-mortar industry.

    • Praphull Paliwal
      Praphull Paliwal Ex-Director at McDonald's India
      5.0

      Mobile App Development Review from Praphull Paliwal

      Robosoft has been our digital partner for years. They have helped us manifest our vision of Direct-to-consumer through intuitive designs, effortless experience, and smart technologies. Our mobile-first and multi-experience approach has made users say, “I’m loving it!”. They are our one-stop agency for digital experience.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Nearshore Software Development Services

    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...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • Web Development
    • eCommerce Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed

    Admios Services

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • Web Development
    • eCommerce Development
    • Software Testing
    • IT Compliance Solution
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Converse
    • Anaplan
    • Zignal Labs
    • Contract Pod AI
    • Collective Health
    • Terraformation
    • Conductor
    • Shop Ware
    • Symphony
    • Off the Grid
    Data sourced from the agency's DesignRush profile

    Admios Reviews & Testimonials

    • Will McDonald
      Will McDonald VP Product at Conductor
      5.0

      Web Development Review from Will McDonald

      I was able to dictate requirements at a high level without having to deal with the details. The Admios team was able to make technical level decisions on their own. They were a first class partner of the team.

    • Mark Griffin
      Mark Griffin Director of Engineering at Latent AI
      4.8

      Software Development Review from Mark Griffin

      Due to past experiences, Latent AI is always cautious when hiring external engineering resources for a project. But collaborating with Admios is a breath of fresh air. The agencys account manager is nothing short of professional, attentive, and understanding of client needs. Furthermore, Admios seasoned and self-sufficient engineers fit seamlessly into the Latent AI culture. The team treats and trusts them as one of their own. (Verified via email)

    • Matt Attaway
      Matt Attaway VP, Software Engineering at Off the Grid
      4.7

      Mobile App Development Review from Matt Attaway

      Off the Grid has had a longstanding developer partnership with Admios. Recently, the client trusted Admios with building a complex React Native POS system and a guest order-ahead app. Given the complexities of the project, Off the Grid wouldn't have chosen any other agency to work with. The Admios' developers did an excellent job, the management was proactive, and the software quality is exceptional. Admios is highly recommended. (Verified via email)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Design
    • Web Development
    • Staff Augmentation
    • Show more
    Location
    Pleasanton, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    12 Projects Listed

    Altoros Labs Services

    • Software Development
    • Mobile App Development
    • Web Design
    • Web Development
    • Staff Augmentation
    • Software Testing
    • AI Development
    • IoT
    • Cloud Consulting
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Siemens
    • Toyota
    • Hitachi
    • Huawei
    • Denso
    • LikeFolio
    • Dealflo
    • iFit
    • Walmart
    • EQ Bank
    Data sourced from the agency's DesignRush profile

    Altoros Labs Reviews & Testimonials

    • Daria Stolyar
      Daria Stolyar Manager at Custom Software Development Company
      5.0

      Software Development Review from Daria Stolyar

      We hired Altoros engineers as an essential extension of our client-facing internal teams. This was a tough decision because our reputation as a brand depends on the overall efficiency of our processes and we needed to make sure all risks are mitigated when it comes to delivery. Altoros has not let us down.Together with Altorosians we successfully deployed a number of tough and technologically complex projects on time. So our collaboration is certainly set to continue.

    • Victoria Lewis
      Victoria Lewis Director at Equine Affairs Ltd
      3.5

      Software Development Review from Victoria Lewis

      We enjoy working with our team, Roman Yurkin, Tatyana Kobzar, Svetlana Kalchanka and Tatiana Anop. They bring expertise and immense value to our business with each piece of work they complete. They are a major part of our business development and delivery.

    • Greg Lipper
      Greg Lipper Managing Director at Happi Pte Ltd
      5.0

      Ruby on Rails Review from Greg Lipper

      In my 30 years in the software business, I have never had as positive an experience with an outsourced development services provider as I have with Altoros. Each Altoros engineer we have worked with has been strong technically, estimated development times accurately, completed projects on time, and delivered code and projects with high quality. Beyond that, they have helped improve our thinking and approach with suggestions and ideas that were better than the spec of instructions we supplied.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Crafting Technology, Connecting Innovations

    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...

    Top Services:

    • Mobile App Development
    • Software Development
    • Software Testing
    Location
    Marina del Rey, California
    Number of Employees
    500 - 999
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    5 Projects Listed

    Qulix Systems Services

    • Mobile App Development
    • Software Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Volkswagen Group
    • UNICEF
    • Alcatel-Lucent
    • Helmes AS
    • Mozido Inc.
    • Orient Express Bank
    • Weight Watchers
    • Wildlife Conservation Society
    • AIMES
    • iHeart Radio
    Data sourced from the agency's DesignRush profile
  • Innovating Healthcare Through Technology

    Orangesoft is a full-cycle software development partner focused on healthcare...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • IoT
    • AI Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    11 Projects Listed

    Orangesoft Services

    • Software Development
    • Mobile App Development
    • Web Development
    • IoT
    • AI Development
    • Wearables
    • Software Testing
    • UI/UX Design
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • CoachNow
    • Flo
    • Yukon Optics
    • Philips
    • Hamleys
    • Ikea
    • Liquid Barcodes
    • Cinemood
    • Europa Plus TV
    Data sourced from the agency's DesignRush profile

    Orangesoft Reviews & Testimonials

    • Olga Rapaport
      Olga Rapaport Review from Google
      5.0

      Olga Rapaport's Review Sourced from Google

      All of their 5-star reviews of Clutch are reasonable. Partnering with Orangesoft strikes the right balance between deep expertise and quality. Worth every dollar spent.

    • Maria Maria
      Maria Maria Review from Google
      5.0

      Maria Maria's Review Sourced from Google

      Collaborating with Orangesoft was a highly satisfying journey. Not only did they create a stunning app, but they also exceeded our expectations in terms of both budget and schedule. Their ideas and skills made our project even better. We're excited to work with them again in the future! :)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your AI-Driven Software Development Partner

    Savvycom is an AI-driven software development and IT consulting company founded in 2009, helping enterprises design, build, and modernize digital systems that deliver measurable business outcomes. Recognized as one of Vietnams Top 10 Digital Technology Companies, Savvycom partners with organizations...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • IT Services
    • AI Development
    • Show more
    Location
    Laguna Beach, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    9 Projects Listed

    Savvycom Services

    • Mobile App Development
    • Software Development
    • Web Development
    • IT Services
    • AI Development
    • Blockchain
    • Software Testing
    • Staff Augmentation
    • Managed Services
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • KB Bank
    • Citeco.
    • Capsikin
    • Path.
    • North America & Europe: TaylorMade
    Data sourced from the agency's DesignRush profile

    Savvycom Reviews & Testimonials

    • Nguyên Ngọc
      Nguyên Ngọc Review from Google
      4.0

      Nguyên Ngọc's Review Sourced from Google

      From my perspective as a former employee: I worked here for almost a year. Colleagues and staffs here are pretty open-minded but employees are highly underpaid. Also in order to get a job here you must have decent technical skills and English language ability.Pros: nice office, friendly staffs that really take care of employeesCons: underpaid salary

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Engineering Intelligent & Scalable Solutions.

    VentureDive is an award-winning custom software development company dedicated to spearheading digital transformations for Fortune 500 companies across BFSI, CPG/retail, healthcare, transportation, logistics, and QSR industries through its expertise in the realms of Fintech, Data & AI, HealthTech, PropTech...

    Top Services:

    • AI Development
    • Software Testing
    • Software Development
    • Mobile App Development
    • Big Data Analytics
    • Show more
    Location
    Mountain View, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000

    VentureDive Services

    • AI Development
    • Software Testing
    • Software Development
    • Mobile App Development
    • Big Data Analytics
    • Cloud Consulting
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Careem
    • Unilever
    • DNOW
    • Islamic Finder
    • Roland Berger
    • Kaizen
    • Google
    • McKinsey & Company
    • Droobi
    • Kashat
    Data sourced from the agency's DesignRush profile
  • Designing and Building Platforms for Your AI Bot Development.

    ISBX (Interactive, Strategy, Branding, Execution) stands as the premier web and mobile application development agency in Southern California, boasting extensive expertise across a diverse spectrum of digital services such as Mobile, Blockchain, IoT, Web3, and Web Development. With a track record of...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Blockchain
    • IoT
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    7 Projects Listed

    ISBX Services

    • Software Development
    • Mobile App Development
    • Web Development
    • Blockchain
    • IoT
    • UI/UX Design
    • Web Design
    • Wearables
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Apple
    • RedBull
    • Lexus
    • American Honda
    • Brain Corp
    • Science 37
    • WAG!
    • USC
    • Pasco Scientific
    Data sourced from the agency's DesignRush profile

    ISBX Reviews & Testimonials

    • Peggy McCabe
      Peggy McCabe Review from Google
      5.0

      Peggy McCabe's Review Sourced from Google

      ISBX is a very professional and talented web development company. The overall experience I had with them in the redesign of our website was outstanding. They were extremely creative, provided viable options at all junctures, and delivered on time and on budget. ISBX also provided a very hands-on, and professional team who understood our need for brand engagement and outreach to a new audience with our website refresh. The team also optimized the new site for mobile usage which was very important to us. ISBX successfully executed our complex project efficiently, with excellent communication and attention to detail at every step. I wouldn't hesitate to work with them again.

    • Kim Farley
      Kim Farley Review from Google
      5.0

      Kim Farley's Review Sourced from Google

      ISBX helped us from concept to launch without any issues. They were communicative, patient, and able to quickly implement solutions to project changes that came up along the way. We appreciate that they took the time to hold our hands with explanations and detailed questions to make the process as stress free as possible and to get a good understanding of our product.

    • Tony Alfaro
      Tony Alfaro Review from Google
      5.0

      Tony Alfaro's Review Sourced from Google

      I've been a client of ISBX for nearly three years. They are hands down the best development firm I have ever worked with. They are on budget and on time consistently. They are trustworthy, highly communicative, and very versatile. Nothing is in the "too hard box" for them.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Senior Web, Mobile & AI Engineering

    Boutique studio of senior engineers building web, mobile, and AI products since 2015. We embed as a long-term extension of your team and ship code that lasts. 5.0 on Clutch, top 1% on Upwork...

    Top Services:

    • Web Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • AI Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000

    EltexSoft Services

    • Web Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • AI Development
    • Staff Augmentation
    • IT Services
    • Engineering
    • DevOps Consulting
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IT Industry
    • B2B Industry
    • Fintech Industry
    Data sourced from the agency's DesignRush profile

    EltexSoft Reviews & Testimonials

    • Yana Vlasova
      Yana Vlasova Review from Google
      5.0

      Yana Vlasova's Review Sourced from Google

      Choose EltexSoft for perfection! LA's best-kept secret in software development. Our experience was top-notch—5 stars all the way!

    • Dasha Ozerchuk
      Dasha Ozerchuk Review from Google
      5.0

      Dasha Ozerchuk's Review Sourced from Google

      EltexSoft is a software dream team! Their LA-based wizards turned our ideas into digital magic. 5 stars for excellence!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Partner For Innovation

    MTechZilla is a custom software development company helping growing companies and product teams across the US and EU to build software products or scale engineering capacity. Senior, pre-vetted developers fully aligned to your timezone. AWS Partner with 40+ products delivered...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Cloud Consulting
    • Show more
    Location
    San Jose, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000

    MTechZilla Services

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Cloud Consulting
    • Software Testing
    • Web Design
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • ReloShare
    • Sintio
    • Pinnacle Furnished Suites
    Data sourced from the agency's DesignRush profile

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