Our industry experts listed the top app development companies for startups based on location, client testimonials, portfolios, hourly rates, team size and more. Outsource their leading services to deliver a great mobile experience to your new customers!

Best App Developers for Startups

10 Companies - Rankings updated: August 20, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

All Industries
Startups
Sort by: Sponsored
United States × California × Sacramento ×

  • Designli

    Verified Verified by the DesignRush team for authenticity and credibility.
    Build software people actually pay for.

    Build software people actually pay for.

    Designli blends founder-level care, AI-empowered engineers, and hypothesis-driven development to deliver tailored cross-platform apps that scale. A leading app development firm with 13+ years of expertise, it has served clients, like Michelin, the Bank of London, and Earthlink...

    Location
    Sacramento, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $85/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    16 Projects Listed
    View Profile
    5.0 5.0 (79)
    4.9 4.9 (84)

  • Clay

    Verified Verified by the DesignRush team for authenticity and credibility.
    Top UI/UX design, web design, and branding agency in San Francisco.

    Top UI/UX design, web design, and branding agency in San Francisco.

    Clay is a design and development agency whose mobile app work spans branding, UX, interaction design, and emerging tech, including AI, AR/VR, and Web3. In 16 years, its 78-person senior-led team has completed 529 projects for clients including Meta, Google, Stripe, Coinbase, Uber, and Sony...

    Location
    Sacramento, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $175/hr
    Portfolios Count
    12 Projects Listed
    View Profile
    4.9 4.9 (37)
    4.8 4.8 (21)

  • ZERO NEGATIVE

    Verified Verified by the DesignRush team for authenticity and credibility.
    Boutique studio creating tailored web experiences.

    Boutique studio creating tailored web experiences.

    Reach for the sky. We are Zero Negative. Your sidekick for big ideas. In a nutshell, Zero Negative is a small, boutique full-service design and development studio with a focus on creativity and close collaboration with clients. We make stuff - websites, web apps, interactive experiences, branding, and...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    7 Projects Listed
    View Profile
    4.9 4.9 (10)
    5.0 5.0 (2)

  • Zealtouch

    Your IT Solutions With Zeal

    Your IT Solutions With Zeal

    Zealtouch, a company that was established in 2017, quickly grew to be a sizable group of professionals with a common corporate vision...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    9 Projects Listed
    View Profile
    4.3 4.3 (1)

  • Ayatas Technologies

    Delivering Value Digitally

    Delivering Value Digitally

    Ayatas Technologies is a digital commerce agency, boasting a robust legacy of 15 years marked by unparalleled experience, unwavering expertise, & a dynamic team dedicated to pushing the boundaries of innovation. Specializing in website design, e-commerce solutions, and custom software development...

    Location
    Sacramento, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Portfolios Count
    19 Projects Listed
    View Profile
    4.4 4.4 (7)

  • HIPAA Software Development

    Built By Engineers Who Understand Healthcare

    Built By Engineers Who Understand Healthcare

    HIPAA Software Development is a dedicated healthcare technology solution hub operated by Taction Software, focused on delivering secure, scalable, and fully compliant healthcare software solutions for organizations across the United States. Taction Software® (Taction Software LLC) is a registered U.S...

    Location
    Sacramento, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    View Profile

  • Rocket Systems

    Rocket your business forward with our expertise.

    Rocket your business forward with our expertise.

    Rocket Systems is focused on producing high-quality code, we take extra precautions to ensure that our technological approach is congruent with the ambitions of our customers. Additionally, we strive to create code bases that are both scalable and easily maintained. In order to construct a digital product...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile

  • Qodestar

    Mobile App Experiences That Inspire

    Mobile App Experiences That Inspire

    Qodestar is a digital studio focused on building clean, high-performing mobile apps and digital experiences. We partner with startups, growing businesses, and creative teams to transform ideas into intuitive mobile solutions through thoughtful design and development...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    View Profile

  • Autobyte Solution

    Your Go-To Web And Marketing Experts

    Your Go-To Web And Marketing Experts

    Autobyte Solution is a full-service digital marketing and web design agency that helps businesses across the United States build stronger online brands and drive measurable business growth. The company specializes in web design and development, branding, SEO, PPC advertising, content marketing, and social...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    View Profile

  • Rysysth Technologies

    Innovative Digital Solutions For A Smarter Future

    Innovative Digital Solutions For A Smarter Future

    Rysysth Technologies is a full-service IT solutions provider specializing in web development, digital transformation, and enterprise solutions. We help businesses scale with modern technologies, user-friendly designs, and performance-driven strategies. From custom websites to cloud-based platforms, our team...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    5.0 5.0 (1)

Why People Trust DesignRush

Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding startup app development companies. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.

DesignRush rating logos on Trustpilot and Google

Learn more about DesignRush Agency Ranking Methodology.

Sources

DesignRush sustains a directory of over 30,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:

  • Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
  • The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.

Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.

Latest Trends Related to Startup App Development

iPhone vs Android Statistics
App Development

iPhone vs. Android: 60+ Key Market Statistics Every Business Should Know

20,316
Mobile App Development AI Tools
App Development

I Tested the Top 5 Mobile App Development AI Tools: Here’s What Stood Out

38,761
No-Code App Builders
App Development

Top 5 No-Code App Builders Reviewed — Which One Came Out on Top?

26,924

Receive Free Proposals

For your project

1

Specify your budget, timeline and project requirements

2

Our experts curate a list of up to 5 most qualified candidate agencies

3

We connect you with them so you can choose the most suitable partner

Specify your requirements