Best Software Development Companies in Sunnyvale

We scored 14 Software Development Companies in Sunnyvale, CA and Picked the Top 6

Here are the Picks:

Why These Software Development Companies?

Our goal is to connect people with the best local experts. We scored Sunnyvale Software Development Companies on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.

Reviewed Curated Top Picks 14 10 6

Our Selection Criteria:

  • 1. Availability

    Consistently approachable and responsive, so customers never feel ignored.

  • 2. Qualifications

    Building customer confidence with licensing, accreditations, and awards.

  • 3. Reputation

    A history of delighted customers and outstanding service.

  • 4. Experience

    Masters of their craft, based on years of practical experience and education.

  • 5. Professionalism

    Providing service with honesty, reliability, and respect.

Read more about our selection process


Located in Palo Alto, Datamart is a full-service IT and custom software company that serves businesses in the Sunnyvale metropolitan area. The company's software development team is dedicated to providing clients with solutions that meet their specific needs. Applications can be built to work on any standard operating system, including Oracle and Microsoft, as well as mobile operating systems, such as iOS and Android. Datamart's successful past projects include a large-scale SaaS automated testing application and an online store with Hadoop analytics.

2100 Geng Rd Ste 210
Palo Alto, CA 94303


INT9 Solutions

Int9 Solutions is a Sunnyvale-based software development firm that serves small and midsize businesses in the city and throughout its surrounding areas. The company specializes in building native and hybrid mobile apps for iOS and Android devices. Its development solutions are comprehensive and include development touchpoints, production rollout, integration and deployment, and social media and website marketing. Other services provided by Int9 Solutions include managed IT services and IT recruiting.

940 Stewart Dr # 304
Sunnyvale, CA 94085



Star is a global technology company that connects strategy, design, and engineering services and helps companies to accelerate their product innovation. They support their customers every step of the co-creation way – from ideation and concept crafting to full-stack development and putting solutions into the hands and minds of end-users. Star works for businesses in a variety of industries, including the Automotive & Mobility, Health & Wellness, FinTech and others. Customers include Panasonic, Lotus, Zeiss, NIO and Lufthansa.

1250 Borregas Ave
Sunnyvale, CA 94089


Tekton Labs

Tekton Labs is a Sunnyvale-based technology company that provides custom software development services to businesses in the city and throughout its surrounding areas. The company's design and development team is experienced in creating a broad range of software applications, including customer engagement bots, web-based chat applications, and games and organizational apps for mobile devices, including Android and iOS devices. Tekton Labs has worked with clients such as Nike and Worry Free Labs.

640 W California Ave Ste 210W
Sunnyvale, CA 94086



Located in Menlo Park, Trantor is a technology company that serves clients in Sunnyvale and throughout its surrounding areas. The company primarily works with fintech and marketing companies, helping them to automate business processes with custom software solutions. The company's software engineering team is experienced in iOS and Android mobile application development, as well as web-based HTML5 application development. This team is experienced in developer languages, such as Python and Ruby on Rails.

3723 Haven Ave Ste 119
Menlo Park, CA 94025


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