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

17 Companies - Rankings updated: August 19, 2026

Every agency featured on DesignRush is vetted for expertise and client satisfaction to support your decision-making. Some listings may be sponsored.

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  • AgileTech

    HIGH QUALITY SOFTWARE COMPANY IN VIETNAM

    HIGH QUALITY SOFTWARE COMPANY IN VIETNAM

    With over 10 years of expertise, AgileTech Vietnam stands at the forefront of delivering innovative technology solutions across a wide range of industries. Our team of 300+ skilled developers has completed more than 1,000 successful projects, ranging from dynamic startups to large-scale enterprises...

    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    50 Projects Listed
    View Profile
    4.8 4.8 (6)
    4.7 4.7 (20)

  • TouchZen

    Verified Verified by the DesignRush team for authenticity and credibility.
    Premiere Mobile Applications

    Premiere Mobile Applications

    Touchzen combines AI innovation with 12+ years of experience to create performance-driven native and cross-platform solutions. With each project directly led by founder Cyrus Kiani, the app development company has launched 75+ apps, amassing 20M+ downloads collectively...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    11 Projects Listed
    View Profile
    4.7 4.7 (5)
    5.0 5.0 (19)

  • Idea Maker

    You Think It, We'll Build It.

    You Think It, We'll Build It.

    Idea Maker is a U.S.-based software development agency helping businesses transform ideas into scalable digital products. Our expert team specializes equally in mobile apps, custom software, AI-powered solutions, and modern web platforms...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $125/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed
    View Profile
    4.8 4.8 (6)
    5.0 5.0 (16)

  • Kingsmen Digital Ventures

    We Build Innovative Technology.

    We Build Innovative Technology.

    Applications and platforms proudly built here in the USA. We have assisted some of the most prominent global brands operating in complex and heavily regulated sectors in successfully launching software solutions that underpin their go-to-market strategy, ensuring a world-class customer experience...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    14 Projects Listed
    View Profile
    5.0 5.0 (3)

  • CoreTeka

    Custom Software Development

    Custom Software Development

    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)...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Portfolios Count
    13 Projects Listed
    View Profile

  • Ardas

    Every Move Is for the Product.

    Every Move Is for the Product.

    Ardas is a SaaS-centric shop with a focus on reaching business success rather than technologies or methodologies...

    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    11 Projects Listed
    View Profile

  • Topflight Apps

    Your AI + Healthcare Development Partner

    Your AI + Healthcare Development Partner

    Your healthcare development partner: We build digital health products that leverage generative AI to improve patient care, operation costs, and provider burnout...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed
    View Profile

  • Black Flag Creative

    Web Design & Development Company Anchored in Los Angeles, CA

    Web Design & Development Company Anchored in Los Angeles, CA

    We're a leading web design & development company in Los Angeles, CA – Specializing in UI/UX Design, Web Design, Product Design, & Web Development...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
    View Profile
    5.0 5.0 (12)

  • Hidden Brains Infotech

    Enterprise Software Development & IT Consulting Company

    Enterprise Software Development & IT Consulting Company

    At Hidden Brains, we specialize in delivering state-of-the-art solutions meticulously tailored to our clients' specific requirements. Our comprehensive services include software development, IT consulting, wearable app development, and digital transformation, among others...

    Location
    Irvine, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    5 Projects Listed
    View Profile
    4.5 4.5 (2)
    4.3 4.3 (163)

  • Naked Development

    We are a Creative Development Agency & Consultancy.

    We are a Creative Development Agency & Consultancy.

    Naked Development transforms businesses through expert App Development, partnering with founders to design, develop, and launch apps that solve real problems. Our customized approach ensures top-tier results for startups, helping you avoid costly missteps and turn your vision into a thriving company...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    12 Projects Listed
    View Profile
    2.6 2.6 (3)
    4.2 4.2 (11)

  • 3DEX

    Solutions for Technology and Marketing.

    Solutions for Technology and Marketing.

    3DEX Inc., a California-based software provider, delivers innovative solutions globally, serving industries such as healthcare, e-commerce, logistics, and finance. With expertise in AI, quantum computing, and advanced software development, we help businesses transform through cutting-edge technology...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    Under $1,000
    View Profile

  • California Logo Designs

    USA's Top-Ranked Logo Design Agency

    USA's Top-Ranked Logo Design Agency

    California Logo Designs is a renowned logo design agency based in Irvine, California, USA. The agency specializes in helping brands enhance their online presence through captivating branding strategies, earning trust and recognition worldwide...

    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    View Profile

  • Phoenix Afterglow

    Your Full Digital Development Experience.

    Your Full Digital Development Experience.

    Phoenix Afterglow is a premier multimedia company specializing in web development, app development, online marketing, and cybersecurity. They are dedicated to upholding the highest standards of performance, integrity, and ethics to ensure client satisfaction and achieve a lasting sense of fulfillment for all...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (7)

  • Bellvia Solutions

    Powering IT Excellence

    Powering IT Excellence

    Bellvia Solutions is a North American IT Managed Service Provider (MSP) delivering enterprise-grade IT, cybersecurity, cloud, and connectivity services available under your brand...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    View Profile

  • SEOFAT

    Elite Services That Multiply Revenue

    Elite Services That Multiply Revenue

    SEOFAT is a full-service digital agency offering SEO, web development, and marketing solutions. We help brands grow visibility, leads, and revenue through smart, data-driven strategies...

    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • InfoSwift Corp

    Leading Software Development Company

    Leading Software Development Company

    InfoSwift Corp is a technology consulting and software development company with over 15 years of experience serving clients across the United States. The company specializes in next-generation technologies, data solutions, artificial intelligence, and enterprise software development...

    Location
    Irvine, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile

  • NextOlive

    Grow with Technology.

    Grow with Technology.

    We have a Team of 100+ Skilled App Developers who thrive on rolling up their sleeves and solving your IT problems and meeting your business needs like APP Development, Software Development, Cloud Consulting, Generative AI Development, Cyber Security Services, Custom ERP Software Development, and Web...

    Location
    Irvine, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile

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.

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