The right AI app can turn data into decisions and time into savings. DesignRush lists vetted AI application development companies building scalable, intelligent solutions. Search by expertise, reviews, and team size.

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

AI Application Development × Professional Services × $10,000 - $25,000 ×Clear Filters
  • Everything is possible with tech!

    VND is a software and IT company in San Antonio, Texas, specializing in creating efficient tech solutions like web dashboards, mobile apps, and private clouds, and offering advanced services in managed IT, cybersecurity, data-center operations, cloud virtualization and AI implementations...

    Top Services:

    • Web Development
    • WordPress Website Design
    • AI Development
    • Mobile App Development
    • Software Development
    • Show more
    Location
    San Antonio, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $135/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    25 Projects Listed
  • More than a website, a growth engine.

    Serbyte Web Design & Development builds custom websites that function as growth systems, combining web design, Next.js development, SEO, analytics, lead capture, and automation to help businesses turn traffic into leads and sales...

    Top Services:

    • Web Design
    • SEO
    • Web Development
    • Software Development
    • UI/UX Design
    • Show more
    Location
    Kirkland, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Custom software and AI for complex projects, with experience, quality and honesty. Since 2012.

    Mecexis is a custom software development studio based in Manresa (Barcelona), active since 2012. It designs and builds web and mobile applications, B2B e-commerce, management systems and artificial intelligence solutions for companies and startups. It integrates artificial intelligence into its clients' real...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • Mobile App Development
    • eCommerce Development
    • Show more
    Location
    Manresa, Spain
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • Dublin digital product studio. One senior team that consults, designs and builds.

    Loco Digital is an independent, founder-led digital product studio in Dublin. One senior team consults, designs and builds websites and ecommerce, web and mobile apps, custom software, AI and automation for businesses across Ireland. You own the code, the data and the accounts...

    Top Services:

    • Web Development
    • eCommerce Development
    • Software Development
    • Mobile App Development
    • AI Development
    • Show more
    Location
    Dublin, Ireland
    Number of Employees
    Under 49
    Average Hourly Rate
    $184/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Senior Engineering For SaaS Founders

    Senior software engineering from Ukraine for SaaS founders. We author V1s and rescue live Rails apps that lost their team: MoveitPro (2,000+ companies, 40K daily users), HappyCo (1.5M+ units under management), Cliqpod (200M+ pageviews a month). Senior judgment, AI-amplified delivery, one named engineer per...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • VR/AR
    • AI Development
    • Show more
    Location
    Khmelnytskyi, Ukraine
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
  • Award-Winning Databricks Engineering Team

    TechFabric builds data platforms, AI agents and custom software for US companies, and stays to run what it builds. We're a Databricks partner with 80 Databricks-certified engineers, a Microsoft Solutions Partner and a Temporal partner. Most work starts with a fixed-fee, two-week Health Check or a six-week...

    Top Services:

    • Product Design
    • AI Development
    • Mobile App Development
    • Software Development
    • CRM Consulting
    • Show more
    Location
    Gilbert, Arizona
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • AI agency for marketing and sales teams, from strategy to working automations

    OstraconAI is a Helsinki-based AI agency for marketing and sales teams. We find where AI pays off and build custom tools and automations on the stack a team already uses. Then we hand them over, documented, so the team runs them itself. Clients include S-Group, Sanoma, Barona, Eficode and Attendo. Singa cut...

    Top Services:

    • AI Development
    • Digital Strategy
    • Digital Marketing
    • Content Marketing
    • CRM Consulting
    • Show more
    Location
    Helsinki, Finland
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
  • Engineering Mission-Critical Web Applications & AI Solutions.

    Digital Pixora is an elite software engineering and digital transformation agency. We don't just build websites; we engineer high-performance web applications, complex B2B SaaS platforms, and custom Artificial Intelligence (AI) solutions tailored for enterprise growth. Our core expertise lies in Rea...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • UI/UX Design
    • Web Design
    • Show more
    Location
    Toronto, Canada
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
  • Astro websites that rank and convert. Custom apps in React, Next.js and Spring Boot.

    WebProfessor is a Warsaw-based software house. We build business websites on Astro, Sanity and Cloudflare and custom web apps in React, Next.js and Spring Boot. Deepest experience in healthcare, automotive and education. 50+ projects, senior-only team, websites convert 47.2% better on average...

    Top Services:

    • Web Development
    • Software Development
    • Digital Strategy
    • UI/UX Design
    • Web Design
    • Show more
    Location
    Warsaw, Poland
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $10,000 - $25,000
  • We help companies build and integrate with AI.

    Were an AI studio that builds practical AI solutions with a focus on execution, impact, and shipping great solutions. No bloated processes, just hands-on work...

    Top Services:

    • AI Development
    • Software Development
    • IT Services
    • Cloud Consulting
    • Engineering
    • Show more
    Location
    Copenhagen, Denmark
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • AI Transformation and Software Development Services

    We help early-stage startups build market-ready applications, and mid-market firms achieve tangible ROI with AI and Digital Transformation initiatives...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Software Testing
    • IT Services
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $10,000 - $25,000
  • We Help Bring Your Idea To Life

    For 18 years, we've built the software behind banks, governments, and household retail brands. We developed the UKs first mobile banking app and went on to build the earliest m-commerce apps on the UK App Store for brands including GAME, Gamestation, Waterstones, HMV and Next...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Web Development
    • Business Consulting
    • Show more
    Location
    Birmingham, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • Software Built On Your Logic

    Thesis OS builds custom software for businesses that have outgrown off-the-shelf tools. We embed in your workflow, understand how you actually operate, then build operating systems and logic engines that become and extension of your business - not another tool you have to work around. Proof: Protée OS, our...

    Top Services:

    • Software Development
    • Web Development
    • Web Design
    • UI/UX Design
    • SEO
    • Show more
    Location
    Sydney, Australia
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • Digital growth, engineered globally

    Integrated search, web and AI expertise Commercial goals before channel activity Clear measurement and accountable delivery...

    Top Services:

    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Digital Marketing
    • SEO
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000
  • TomorrowToday: AI consulting and AI development that gets mid-market companies real results.

    TomorrowToday is a national AI consulting and AI development firm for mid-market companies. We help operations, finance, and CEO teams close the gap between AI ambition and real results. On the people side, we drive AI adoption, governance, and change management so tools actually get used. On the technology...

    Top Services:

    • AI Development
    • Software Development
    • Business Consulting
    Location
    Phoenix, Arizona
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
  • Company OS, AI agents and Local AI that do real work

    Intrepide is an Atlanta AI product studio for established companies that want AI to take on real work. We build a Company OS that connects your tools to one knowledge base with sourced answers; AI agents for support, sales, bookkeeping and recruiting that ask before anything important; and Local AI on your...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Web Development
    • Digital Strategy
    • Show more
    Location
    Atlanta, Georgia
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
  • Custom Operations Systems For Growing Businesses

    OpsMavix builds custom operations systems that help growing businesses replace spreadsheets, manual work, and disconnected tools with one clear source of truth. We focus on inventory, workflows, reporting, automation, and internal business apps that give teams more control and less chaos...

    Top Services:

    • eCommerce Development
    • Software Development
    • ERP Consulting
    • CRM Consulting
    • ECM Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $10,000 - $25,000
  • We Engineer What Others Only Promise.

    Xenora Solutions builds custom software, web and mobile applications, and secure digital systems for growing businesses & enterprises, combining strong engineering with security-first development...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • Cybersecurity
    • AI Development
    • Show more
    Location
    Thiruvananthapuram, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
  • Dare To Simplify Without Losing Its Soul

    Nilant Solutions builds custom mobile apps, web platforms, SaaS and internal tools for businesses, founders and agencies. A few client projects at a time, a written brief before anything is built, a working build every week, and your code in your own repository from week one...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    Vadodara, India
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,656+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
19

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See how rankings and monetization work.

5 Frequently Asked Questions About AI App Development Companies

How much does it cost to build an AI app?

Simple AI integrations using third-party APIs (e.g., OpenAI or Anthropic) or off-the-shelf builds can cost about $5,000-$20,000. For instance, a chatbot or search engine recommendation system.  

More complex AI applications with custom workflows, multiple integrations, and a polished UI range between $100,000 and $250,000. Enterprise-level builds that require custom-trained models and large-scale data pipelines can cost over $500,000. 

How long does it take to build an AI app?

A basic MVP using a pre-trained or off-the-shelf model can take around 2-3 months. A mid-complexity app, with custom features, multiple data sources, or advanced workflows, may need at least 4-11 months to build. 

Ultimately, the AI application development timeline will depend on your project's scope, complexity, security and compliance requirements, and business readiness. 

What is the difference between using an existing AI API vs. building a custom model?

An existing AI API (e.g., OpenAI, Anthropic, Gemini) offers access to a pre-trained model through a paid subscription or usage fee. This model is faster to launch, has lower upfront costs, and requires no in-house AI expertise to maintain. 

A custom model is built and trained on your own data, providing more control over accuracy, behavior, and proprietary advantage. However, it costs significantly more, takes longer, and requires ongoing retraining and infrastructure.  

Consider choosing custom AI if you have niche domain data, strict compliance requirements, and AI is your main differentiator. 

What AI features are worth adding to an existing app?

The AI features worth adding to an existing app will depend on your core business needs, goals, and existing tech stack. 

For companies moving beyond isolated AI features, AI-native workflow redesign involves rethinking processes around AI rather than simply adding AI tools to existing workflows.

The same study also found that 44.4% of tech founders believe that automation is the most beneficial AI feature, followed by customer personalization (22.2%) and AI-assisted productivity features (22.2%). 

How do you ensure data privacy and data security?

Reputable AI app development companies will isolate your data through encrypted storage (at rest and in transit), strict access controls, and clear data-handling agreements with any third-party AI providers used. 

To confirm the AI application development company’s legitimacy, consider the following: 

  • Search for compliance certifications relevant to your industry (e.g., HIPAA, SOC2).  
  • Require a written data processing agreement (DPA), which outlines where data is stored, who has access, and how it’s deleted.  
  • Obtain a copy of the AI API’s Terms of Agreement. It should explicitly state that the company and its model do not use your data for training.