Software Development

Top California Software Development Companies

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Best California Software Development Firm Rankings

Rankings updated: June 22, 2024
  • Naked Development

    We are a Creative Development Agency & Consultancy.
    First we listen and strip down your idea to reveal the core of your business objectives.This means designing a strategy that will best support the users total experience, end-to-end.Then our  [... view the full profile of Naked Development]
    Irvine, California
    Under 49 Inquire $25,000 - $50,000
  • Admios

    Nearshore Software Development Services
    Need devs but in a hiring freeze? Continue to build and increase productivity with our nearshore software development resources. We provides highly skilled, team-based resources to companies that need  [... view the full profile of Admios]
    San Francisco, California
    50 - 99 $55/hr $25,000 - $50,000
  • Get what matters!
    Suffescom is a leading mobile app development company offering top-notch solutions across diverse industries.  [... view the full profile of Suffescom Solutions Inc]
    Los Angeles, California
    250 - 499 Inquire $10,000 - $25,000
  • Diffco

    Your trusted partner for software development and team augmentation
    Diffco is a global software development and team augmentation company based in Silicon Valley. With over 15 years of experience delivering robust software solutions in mobile, web, and AI development  [... view the full profile of Diffco]
    Sunnyvale, California
    Under 49 $85/hr $50,000 & Up
  • Essential Designs

    Software Application Developers for Web, Mobile and Desktop
    Essential Designs is a team of custom application developers based ion Canada. We specialize in custom software and app development. Save 35% on your project with the Canadian Dollar!  [... view the full profile of Essential Designs]
    Culver City, California
    50 - 99 $50/hr $25,000 - $50,000
  • Kanda Software

    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  [... view the full profile of Kanda Software]
    Alameda, California
    500 - 999 $50/hr $50,000 & Up
  • Vention

    Elevate your business: custom solutions, built to scale
    We're Vention, partner of forward-thinking tech leaders worldwide.  [... view the full profile of Vention]
    San Francisco, California
    1000 & Up $50/hr $25,000 - $50,000
  • Zazz

    The app creation specialists you need!
    Zazz is a leading American mobile app development company with a team of 275+ software engineers and designers dedicated to building and maintaining mobile and web applications and government apps.  [... view the full profile of Zazz]
    San Francisco, California
    250 - 499 $45/hr Inquire
  • Light IT

    Deep tech expertise for SME
    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  [... view the full profile of Light IT]
    San Jose, California
    100 - 249 $35/hr $10,000 - $25,000
  • Outecho

    Your Technology Partner To Build Winning Products
    We are a software development agency specializing in web and mobile application development, providing expertise to companies seeking to build or maintain their digital products. Our goal is to become  [... view the full profile of Outecho]
    San Francisco, California
    Under 49 $40/hr Inquire
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    Crafting Online Success Stories, One Pixel At A Time
    We take great pride in our work, showcasing resourcefulness and a keen ability to address nuanced challenges. We adeptly tackle issues as they arise, continuously refining our systems to optimize  [... view the full profile of SMV EXPERTS LLC]
    San Marcos, California
    Under 49 $70/hr $10,000 - $25,000
  • Rare Crew

    Bridging the gap between business and technology
    Rare Crew is a custom software development company with over a decade of experience. Rare Crew develops custom solutions for all kinds of business, from multinational organizations to start-ups  [... view the full profile of Rare Crew]
    Los Angeles, California
    100 - 249 $50/hr $1,000 - $10,000
  • MEV

    Software Development Made Easier.
    Craft exceptional digital solutions with a team of design, development, and strategy specialists. Everything you need is in one place.  [... view the full profile of MEV]
    Walnut Creek, California
    100 - 249 $45/hr $50,000 & Up
  • Anmel

    Anmel empowers_ digital success.
    Anmel is proven to boost productivity by up to 60% and efficiency by 45% for startups and enterprises alike. Trusted by businesses globally, Anmel delivers tangible results, driving success and growth  [... view the full profile of Anmel]
    San Francisco, California
    100 - 249 $70/hr $25,000 - $50,000
  • Digital Silk

    DesignRush Design Award Winner
    Growing Brands Online
    Digital Silk is an agency focused on Creating Superior Digital Experiences for their clients. They create cutting-edge brand strategies, websites, apps and results-driven marketing campaigns for  [... view the full profile of Digital Silk]
    Los Angeles, California
    100 - 249 $150/hr Inquire
  • Trango Tech

    Driving Change Through Technology - Apps, Ecommerce, Staff Aug, BPO, Next Gen Tech and more!
    We are the nerds that every company wants in their tech division; experience, innovative and imaginative to the core!With more than 200 innovative software products and solution delivered, Trango  [... view the full profile of Trango Tech]
    San Jose, California
    100 - 249 Inquire $1,000 - $10,000
  • Phenomenon Studio

    Full service studio for both startups and established businesses
    Phenomenon is an international full-cycle product development company focused on building products that matter. Phenomenon has grown into a top-rated international agency with offices in Poland  [... view the full profile of Phenomenon Studio]
    Los Angeles, California
    50 - 99 $55/hr Inquire
  • Magneto IT Solutions

    Empowering eCommerce Excellence
    Magneto IT Solutions, an award-winning eCommerce agency, specializes in Node.js development. We excel in creating top-notch B2C, B2B, and Marketplace eCommerce solutions. Our Exclusive Partnerships  [... view the full profile of Magneto IT Solutions]
    San Francisco, California
    100 - 249 $30/hr $10,000 - $25,000
  • Cheesecake Labs

    Crafting Digital Excellence, Byte by Byte.
    We're more than a nearshore design and engineering firm. We're your dedicated partner in building mobile and web applications.  [... view the full profile of Cheesecake Labs]
    San Francisco, California
    100 - 249 $75/hr $50,000 & Up
  • BairesDev

    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.  [... view the full profile of BairesDev]
    San Francisco, California
    1000 & Up $50/hr $50,000 & Up
  • Differenz System

    We make a difference
    I am grateful that you took the time to visit! Because you are here, I may assume that you are searching for help with some aspect of software development, whether it is UI/UX design or mobile app  [... view the full profile of Differenz System]
    Los Angeles, California
    100 - 249 $30/hr $25,000 - $50,000
  • Evrone

    Elevating your place on the digital landscape
    Evrone is your go-to custom software development company that offers a comprehensive range of services - from web development to mobile app development, design to Java development, Python Django  [... view the full profile of Evrone]
    San Francisco, California
    50 - 99 $50/hr $10,000 - $25,000
  • Bringing awesome ideas to life
    Closeloop is a renowned custom software development company in California, offering innovative software solutions to its clientele to meet modern digital trends. We specialize in custom software  [... view the full profile of Closeloop Technologies]
    Mountain View, California
    50 - 99 $25/hr $50,000 & Up
  • TekRevol

    Your Vision. Our Expertise. Shaping the Future!
    TekRevol is a global leader in digital innovation, dedicated to creating advanced products ranging from mobile apps to AI-enhanced software solutions. Our goal is to help businesses outperform their  [... view the full profile of TekRevol]
    San Francisco, California
    250 - 499 $35/hr $25,000 - $50,000
  • Baunfire

    A Silicon Valley Agency | B2B Marketing Websites
    Baunfire is a digital agency based in Silicon Valley, delivering elevated corporate websites for leading technology brands, B2B companies, venture capital firms, and their funded portfolio businesses.  [... view the full profile of Baunfire]
    San Jose, California
    50 - 99 Inquire $50,000 & Up

    Bring your vision to life
    HDWEBSOFT is a leading software outsourcing company in Vietnam, known for its high-quality services, affordable pricing, and reliable team. With over 250 experienced engineers and a decade of  [... view the full profile of HDWEBSOFT]
    Pasadena, California
    250 - 499 $35/hr $10,000 - $25,000
  • EffectiveSoft

    You have challenges. We have solutions.
    EffectiveSoft is the go-to partner for companies looking for mobile and web development services. With a focus on quality and efficiency, we are committed to delivering exceptional results that drive  [... view the full profile of EffectiveSoft]
    San Diego, California
    250 - 499 $50/hr $25,000 - $50,000
  • Softermii

    Succeed Without (L) imitations
    Softermii ( is an outsourcing/outstaffing company with more than 8 years of experience in web and mobile application development with a team of more than 120 specialists  [... view the full profile of Softermii]
    Los Angeles, California
    100 - 249 $45/hr $25,000 - $50,000
  • Gecko Dynamics

    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  [... view the full profile of Gecko Dynamics]
    San Francisco, California
    50 - 99 $50/hr Inquire
  • BlueLabel

    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  [... view the full profile of BlueLabel]
    San Francisco, California
    100 - 249 Inquire $50,000 & Up
  • Dreamsoft4u

    Connect with the best in healthcare IT!
    DreamSoft4U stands as a top-tier Flutter developer and healthcare software expert since 2003. Serving everyone from hospitals to individual physicians, our tech solutions prioritize hassle-free  [... view the full profile of Dreamsoft4u]
    Corona, California
    50 - 99 $40/hr $1,000 - $10,000
  • A3logics

    Your best partner in software development!
    A3Logics is your partner for streamlined product design solutions. We offer expertise in product engineering, educational software development, custom software development, software testing  [... view the full profile of A3logics]
    Carlsbad, California
    250 - 499 $35/hr $25,000 - $50,000
  • Where Innovation Meets App-solute Success
    Konstant Infosolutions is a leading digital innovation and mobile app development company, offering top-notch solutions across diverse industries. With expertise in healthcare, on-demand services  [... view the full profile of KONSTANT INFOSOLUTIONS]
    Palo Alto, California
    100 - 249 $25/hr $10,000 - $25,000
  • MindK

    Custom Software & Website Development Company
    MindK is a team of experts that develop and deliver great products & websites. We combine design and technology to solve real customers problems.  [... view the full profile of MindK]
    San Francisco, California
    100 - 249 $95/hr $10,000 - $25,000
  • Sidebench

    Top Product, Technology, & Venture Design Firm
    Sidebench is an award-winning UX design, mobile app, and custom software development company in Los Angeles. We are a diverse group of digital strategists, technologists, tinkers, and thought leaders.  [... view the full profile of Sidebench]
    Santa Monica, California
    Under 49 Inquire $50,000 & Up
  • eSEOspace

    Custom Website Design Strategy. Local US-based team! We Preserve & Optimize your SEO in the Process
    We have 10+ years of experience designing websites from scratch. Our background and emphasis in behavior science allows us to creatively design websites to convert.  [... view the full profile of ESEOspace]
    San Diego, California
    Under 49 Inquire $1,000 - $10,000
  • Absolute Web

    The eCommerce Development Specialists
    Absolute Web is an eCommerce development and growth agency with offices in Miami, Florida and Los Angeles, California. We specialize in Magento development and have been helping eCommerce businesses  [... view the full profile of Absolute Web]
    Los Angeles, California
    50 - 99 $125/hr $10,000 - $25,000
  • Altoros Labs

    Trusted IT partner for Global 2000 firms from 2001 | Dedicated teams | Industry-specific solutions
    Altoros is a 400+ 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  [... view the full profile of Altoros Labs]
    Pleasanton, California
    250 - 499 $50/hr $25,000 - $50,000
  • Simform

    Your Digital Product Engineering & Gen AI Partner
    We are a digital product engineering and IT talent solutions company, specializing as a performance testing company, dedicated to tackling intricate software engineering challenges. Our track record  [... view the full profile of Simform]
    Los Angeles, California
    1000 & Up $30/hr $25,000 - $50,000
  • TechnoScore

    Web & App Development Company
    TechnoScore is a reputed web and mobile app development company located in Laguna Beach, California.  [... view the full profile of TechnoScore]
    Laguna Beach, California
    100 - 249 $14/hr $1,000 - $10,000
  • Wanted for Nothing

    DesignRush Design Award Winner
    Wanted for Nothing is a Top Rated Design Agency in Los Angeles
    WFN is an award-winning design agency headquartered in Los Angeles. We focus on strategies that create tangible results. Our team can cover full-cycle product delivery, including strategy, UX/UI  [... view the full profile of Wanted For Nothing]
    Los Angeles, California
    50 - 99 $95/hr Inquire
  • Bytes Technolab

    Revel in the media presence we create for you!
    Bytes Technolab is an Odoo Bronze Partner, Adobe Commerce Silver Partner, NASSCOM member, and ISO 9001:2008 certified digital innovation agency. Specializing in custom Enterprise software and  [... view the full profile of Bytes Technolab]
    Pleasanton, California
    100 - 249 $20/hr $1,000 - $10,000
  • Qulix Systems

    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  [... view the full profile of Qulix Systems]
    Marina del Rey, California
    500 - 999 Inquire $25,000 - $50,000
  • GroupBWT

    We build data platforms
    GroupBWT is a consulting firm specializing in data management and the construction of data platforms. Our approach combines classical data warehousing with robust visualization tools, ETL processes  [... view the full profile of GroupBWT]
    Los Angeles, California
    50 - 99 $45/hr $1,000 - $10,000
  • Azumo

    Nearshore Software Development for Web, Mobile, Data, AI and Cloud
    Azumo is a leading nearshore software development services provider. We provide software engineers on demand for web, mobile, data, and cloud. Our engineers work from Latin America for our customers  [... view the full profile of Azumo]
    San Francisco, California
    100 - 249 $45/hr $10,000 - $25,000
  • Rootstrap

    At Rootstrap we combine creativity, technical expertise, and process-driven development
    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  [... view the full profile of Rootstrap]
    Los Angeles, California
    50 - 99 $87/hr Inquire
  • GeekyAnts

    Build. Accelarate. Scale.
    GeekyAnts is an avant-garde design and development studio, distinguished for creating transformative solutions across web and mobile platforms. We specialize in social network app development too.  [... view the full profile of GeekyAnts]
    San Francisco, California
    250 - 499 $25/hr $10,000 - $25,000
  • Prismetric

    Delivering Quality Products and Premium Services
    Prismetric is an ISO 9001:2015 Certified Web & Mobile App Development Company having a development center in India with offices in USA. We develop exceptional applications for iPhone, iPad and Android  [... view the full profile of Prismetric]
    San Francisco, California
    100 - 249 $18/hr Inquire
  • Travancore Analytics

    Building Custom Software Products: We give shape to your ideas
    Travancore Analytics (TA) is a bespoke software development company - a team of professional and experienced software developers, architects, and project managers. We have been in operation from  [... view the full profile of Travancore Analytics]
    Pleasanton, California
    100 - 249 $30/hr $10,000 - $25,000
  • IIH Global

    Revel in the success of real estate marketing!
    IH Global, an experienced Real Estate App Development Company, offers innovative solutions for real estate agencies, agents, and small property-focused businesses. Its robust real estate app boosts  [... view the full profile of IIH Global]
    Los Angeles, California
    Under 49 $20/hr $1,000 - $10,000
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What Makes Software Development Companies In California Unique

California software engineers are highly valued because of Silicon Valley.

Silicon Valley is an area with a long and successful history of technology-driven startups. In fact, many major tech businesses are headquartered there.

According to Zippia, some of the top tech businesses with over 10,000 employees in the area include:

  • Apple
  • Cisco Systems
  • Intel

This is the area that has shaped the global tech ecosystem in more ways than one. As such, it commands the highest of standards and attracts the most elite tech talent on the global market.

Besides their impressive skills and portfolios, custom software development companies in California are also exposed to the most cutting-edge technologies and the latest trends in the industry, giving them a leg up on their peers elsewhere.

Moreover, with a GDP of $2.94 trillion, California has the largest economy in the country and the fifth-largest economy in the world.

The industries that thrive in this area are agriculture, technology, tourism, forestry and education. (Livability)

So, unlike their US-based competitors, custom software development companies in California are highly qualified in building software solutions, particularly for these locally dominant industries.

San Francisco skyline
With a GDP of $2.94 trillion, California has the largest economy in the US

What Do Software Development Companies In California Do?

These are some of the services that custom software development companies in California offer:

They Create Mobile Apps

25% of users abandon mobile apps after a single-use. (Hanley Wood Media)

It means that your brand needs to create a truly stellar app design that engages and inspires users to keep coming back long after they’ve downloaded it.

Software companies in California have an innate understanding of the technical backbone that keeps an app functioning at peak potential.

They design for intuitive user experience and ensure maximum usability and efficiency.

They Establish Intranets

An intranet is a private website that your team has access to. It controls the backend of your front-facing platform, giving you access to key functionalities and elements that put you in control of your online experience.

Custom software development companies in California develop these to help businesses improve workflow and create a more efficient business operation process.

They make companies feel confident about their management system and propel them to future growth and success.

They Create Front-Facing Web Designs

Software companies in California have a team of web designers who create high performing websites that meet the needs of businesses and their target market.

They engage in different processes including:

  • Performing market and competitor research
  • Translating client’s needs int concepts
  • Developing database
  • Creating graphics, images and videos
  • Optimizing websites for search engines
  • Maintaining websites
  • And more

The designs of these experts are customer-centric, generate intuitive user experience, engage and convert visitors into paying customers.

They Offer Continued Support

Software companies in California maintain the solutions they build after launch.

They monitor software performance and are equipped to handle issues, deal with bugs and downtimes and make sure it is always running at max efficiency.

In addition, California software developers understand that your brand needs to grow as you learn more and take on greater responsibilities.

So, your software needs to grow and adapt as a result as well.

These leading firms will keep an eye on your software and how it runs to ensure that there is room for scalability and growth down the line.

They Practice Continuous Testing

Before your website, application, or management system goes live, it needs to be tested and tested again.

This testing can uncover inconsistencies in the coding language. It can also highlight bugs in the system that can do detrimental harm to your business in the future.

The best custom software development companies in California will test your system throughout the process. From prototype to launch, this testing will help them hone in on certain aspects of your solution.

Quality assurance testing is necessary for creating outstanding experiences with your brand. It also ensures that business operations continue to run efficiently and without error.

Testing is a necessary evil. It’s a process that every top-notch development company will infuse into its process.

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How Much Do Software Development Companies In California Charge For Their Services?

Software development companies in California price their projects on hourly rates and time estimates.

So, your agency will bill you depending on the number of hours they will spend working on your project.

The cost varies from company to company and it approximately ranges between $25 and $150 per hour.

The factors that will dictate the price are:

  • The project’s complexity
  • The project’s scope
  • The number of developers engaged

How To Choose The Best Software Company In California

Custom development companies in California are uniquely positioned to deliver on your expectations. They operate in an environment that has spearheaded the global IT evolution for decades.

Most -if not all- of these companies will be able to create almost any solution you envision, but this doesn’t mean that you should approach your research lightheartedly.

Expectedly, a California based agency will command higher-than-average rates, so strive to screen them thoroughly to make the investment truly worthwhile.

Here are a few factors to consider to make the right choice:

  • Communication: Proper communication plays a key role in a project's success. This is why you will want to work with a partner that clearly defines the communication channels, contact person and time management. The agency you hire should continuously inform you on the different processes taking place, from brainstorming to creation and launch. The company that can manage the flow of information effectively is the one that can deliver a successful project.
  • Past work: The portfolios and case studies of California software developers will give you an insight into their past performance, ability to deliver quality solutions and meet business goals. They will show you whether these experts have worked on projects similar to yours and whether they understand the environment in which you operate.
  • Reviews: Selecting the right partner goes beyond expertise and it also incorporates more facets including reliability. The best way to find out how reliable these software companies in California are, is to read their reviews. They will help you understand how easy it is to collaborate with these agencies, how transparent and flexible they are and what their project management is like.
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7 Questions To Ask Software Development Companies in California Before You Pick One

  1. Technology stack: Which technologies have they mastered? Would they be open to exploring other ones should they suit your project better?
  2. Domain experience or exposure: Have they developed solutions similar to yours? Have they been exposed to your industry before? How quickly can they build domain knowledge?
  3. Engagement method: Do they take on projects or offer staff augmentation services? If the latter, what is the minimum contract period?
  4. Development method: What are their preferred development methodologies and why? Which project management platforms do they use and why?
  5. Communication: Have they any communication processes, platforms and overall structures in place? What are they? Who would be your key contacts?
  6. References: When contacting their references, try to learn more than what their website and representatives can share. Ask how they would review the ease of collaboration, quality of advice, dedication, organization and communication.

Conclusion: Who Should Consider Partnering With A Software Company In California?

Software companies in California are the best choice for organizations looking to develop high-end mobile, web or other highly specialized solutions for various industries: from medical to entertainment.

They offer a range of services including:

  • Developing mobile apps
  • Building internets
  • Creating front-facing designs
  • Testing solutions
  • Maintaining products

To select the best partner for your project:

  • Go through their past work
  • Read their reviews
  • Consider communication

Best of luck!


Scroll Up To Find The Best California Software Developers And Pick A Partner Today!

About The Author and Expert Reviewer
Former Content Specialist
Sumana Ganguly has over a decade of experience in writing for the tech industry. She started her career at Indus Net Technologies, Embee Software, and Global Info and Solutions System, where she won the Best Content Writer award. As a former writer at DesignRush, she covered insightful tech topics and trends that help companies future-proof their businesses.
Chief Technology Officer
Gary Kuznetsov is a seasoned programmer, web developer, and certified Laravel developer. He was a Senior PHP developer at Blue Fountain Media, then soon became Head of Development at Digital Silk. With hundreds of successful websites/applications deployed throughout his career, it is no surprise that he is now a Chief Technology Officer at DesignRush, spearheading digital products and solutions to meet the company’s challenges and objectives.