We’ve researched and ranked the leading software companies in St. Louis helping businesses digitalize their processes, improve productivity and performance. Scroll down to the table to preview their rates, reviews, portfolios and awards and select the most appropriate partner for your needs.
  

Best St. Louis Software Development Firm Rankings

23 Companies
Rankings updated: May 23, 2025
  • Exoft

    Exoft is a software house with a significant background in web and mobile development.
    Exoft is a HIPAA, software development and performance testing company that provides solutions to various business needs.  [... view the full profile of Exoft]
    St. Louis, Missouri
    50 - 99 $40/hr $10,000 - $25,000
    VISIT WEBSITE
  • Accenture

    World Famous IT Services for Businesses
    Accenture is a renowned worldwide IT services company that excels in digital, cloud, and security solutions. With an extensive range of expertise across over 40 industries, we provide a comprehensive  [... view the full profile of Accenture]
    St. Louis, Missouri
    1000 & Up Inquire Inquire
    VISIT WEBSITE
  • Stress-Free Website Development, Maintenance, Logo Design, Copywriting Services.
    STL Website Development specializes in minimalistic website development, maintenance, logo design, and copywriting services, ensuring a professional touch in every project. The agency's approach  [... view the full profile of STL Website Development]
    St. Louis, Missouri
    Under 49 Inquire $1,000 - $10,000
    VISIT WEBSITE
  • Tecziq Solutions

    Strategy, Innovation, Growth
    Technology partners in the development and implementation of automated solutions on mobile and web platforms leading to digital transformation and sustainable growth.  [... view the full profile of Tecziq Solutions]
    St. Louis, Missouri
    Under 49 $25/hr $10,000 - $25,000
    VISIT WEBSITE
  • RaiseTech

    Ecommerce Cloud Company
    RaiseTech is a world-class Cloud, SaaS, and E-commerce development service provider that helps businesses to transform and keep up with the constantly growing competition across various industries.  [... view the full profile of RaiseTech]
    St. Louis, Missouri
    Under 49 $45/hr $10,000 - $25,000
    VISIT WEBSITE
  • Unidev

    Trust your technology to the experts.
    Unidev, founded in 1990, is a diversified IT company focused on applying technology to business. If you can dream it, we can build it.  [... view the full profile of Unidev]
    St. Louis, Missouri
    Under 49 Inquire Inquire
    VISIT WEBSITE
  • Engage Software

    Software and mobile app development
    Since its establishment in 1999, Engage has been providing flexible, sustainable, and highly customizable web and mobile solutions, including software applications and integrations.  [... view the full profile of Engage Software]
    St. Louis, Missouri
    Under 49 $199/hr Inquire
    VISIT WEBSITE
  • csg inc

    Empowering People. Transforming Businesses.
    We help your business improve its unique processes and realize market advantages from your data by creating software and data analytics, data mining, solutions. Our software engineers design and  [... view the full profile of Csg Inc]
    St. Louis, Missouri
    Under 49 Inquire Inquire
    VISIT WEBSITE
  • Grant Thornton

    IT, Business, BPO, Audit, Tax and Advisory are just the beginning.
    Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in  [... view the full profile of Grant Thornton]
    St. Louis, Missouri
    1000 & Up $35/hr $1,000 - $10,000
    VISIT WEBSITE
  • Deloitte

    Collaborating for Lasting Impact in Business Consulting
    Join us at Deloitte, where we believe that our collective influence is the cornerstone of our value. With a rich legacy spanning over 175 years and a global network encompassing 150 countries, we  [... view the full profile of Deloitte]
    St. Louis, Missouri
    1000 & Up Inquire Inquire
    VISIT WEBSITE
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  • Odezzi

    Building Smarter Software. Anywhere. Anytime.
    Odezzi is a custom software development agency delivering scalable digital solutions for startups and enterprises. From product strategy to deployment, the agency empowers businesses through  [... view the full profile of Odezzi]
    St. Louis, Missouri
    Under 49 $95/hr $1,000 - $10,000
  • A Custom Software Development Company for Tomorrows World.Software architecture, design, and development in a fraction of the time.  [... view the full profile of Ideas2IT Technologies]
    St. Louis, Missouri
    250 - 499 $25/hr Inquire
  • Better Teams // Better Software
    Sketch provides software development services for Fortune 500 clients and startups alike. We specialize in product delivery consulting, software development services, and cloud consulting services.  [... view the full profile of Sketch Development Services]
    St. Louis, Missouri
    Under 49 $150/hr $50,000 & Up
  • Alambda Systems

    Bridging the Gap between people and Technology
    Alambda Systems has had the pleasure of collaborating with customers and partners from across the world on projects of varying size and complexity. In all of our work, we blend curiosity and  [... view the full profile of Alambda Systems]
    St. Louis, Missouri
    Under 49 $125/hr Inquire
  • Alliance Systems

    Custom cloud-native software
    We are a digital product agency that creates superbly effective software that is cloud-native. Our company offers an exceptional methodology that gives life to great ideas.  [... view the full profile of Alliance Systems]
    St. Louis, Missouri
    Under 49 $199/hr $25,000 - $50,000
  • 1904labs

    Startup Minds, Innovative Solutions” Helping Enterprises Turn Ideas into Digitally Transformative Solutions.  [... view the full profile of 1904labs]
    St. Louis, Missouri
    100 - 249 Inquire Inquire
  • Innovate. Modernize. Ocelot.
    Ocelot Consulting specializes in Cloud technologies, custom application development and enterprise IT security.  [... view the full profile of Ocelot Consulting]
    St. Louis, Missouri
    Under 49 Inquire Inquire
  • Altec Design

    Premier and award wining internet marketing solutions provider!
    Altec Design has been delivering robust internet solutions to leading companies in St. Louis Mo since 2004. Unlike large companies that offer generic solutions, we believe in crafting customized  [... view the full profile of Altec Design]
    St. Louis, Missouri
    Under 49 $99/hr $1,000 - $10,000
  • SteadyRain

    Taking Your Digital Strategy from Concept to Creation
    SteadyRain assists clients in crafting innovative, remunerative digital strategies through an extensive suite of services. Our team is highly qualified in consultancy, planning, website and mobile app  [... view the full profile of SteadyRain]
    St. Louis, Missouri
    Under 49 $149/hr Inquire
  • Paradigm

    The Agency for Ambitious Brands
    Paradigm is a full-service marketing agency helping brands grow with confidence through branding, digital marketing, and web design. For 30 years, we've crafted powerful stories, built authentic  [... view the full profile of Paradigm]
    St. Louis, Missouri
    Under 49 $180/hr $1,000 - $10,000
  • Crowe

    Empowering Your Accounting Decisions.
    Crowe LLP is a global accounting firm offering audit, tax, advisory, and consulting services. With deep industry expertise, we empower businesses to make informed decisions for lasting value.  [... view the full profile of Crowe]
    St. Louis, Missouri
    1000 & Up Inquire Inquire
  • Perficient

    Experience, expertise, speed, agility, and a dose of pragmatism to drive your business forward!
    We help you imagine, create, engineer and run digital solutions that transform how you connect with your customers and grow your business. Through our digital consulting services, we partner with  [... view the full profile of Perficient]
    St. Louis, Missouri
    1000 & Up Inquire Inquire
  • VIVIDSITES

    Transforming the Way You Reach Customers
    VIVIDSITES is a long-standing, full-service digital marketing agency dedicated to innovation and providing exceptional service. With our ability to build custom or third-party software solutions at an  [... view the full profile of VIVIDSITES]
    St. Louis, Missouri
    Under 49 $199/hr $1,000 - $10,000

What can top software development companies in St. Louis do for businesses?

Top software development companies in St. Louis can help businesses solve complex and technical problems through innovative digital solutions created according to their unique goals and needs. Working with a local software developer allows for face-to-face meetings, leading to clearer discussions and faster problem-solving.

More specifically, software development companies in St. Louis deliver the following:

  1. Higher production output at reduced costs through automated solutions tailored to a business’s specific processes
  2. Secure and robust software systems through stringent cybersecurity strategies and compliance with industry regulations
  3. Centralized and interconnected data analytics platforms that enable informed decision-making in an accurate and timely manner
  4. Future-proof digital solutions underlined by emerging technologies, like artificial intelligence (AI), internet of things (IoT), and edge computing
  5. Accelerated time to market by using agile development methodologies that allow for iterative releases and continuous improvement

To better illustrate what St. Louis development companies can do for businesses, we chose the following case study:

  • Challenge: After establishing its advertising division in 2022, Uber experienced rapid growth, but the quick department setup led to inefficiencies. Employees were hindered by manual processes and struggled to keep up with the increasing pace and volume of demand from advertisers. To address these obstacles, Uber sought help from Accenture to unify its fragmented processes and eliminate the barriers hindering its progress.
  • Solution: The first part of the partnership was refining the ad sales process. Accenture used Salesforce Media Cloud to create a digital solution envisioned to be a central hub for Uber’s global ad sales operations that consolidates all customer data. Across the new solution, the agency migrated over 100 processes and integrated third-party tools to streamline the flow even more. Accenture also developed over 75 custom dashboards and facilitated team training and upskilling for easier user adoption.
  • Results: With the help of Accenture, Uber accelerated its ad sales process by 70%, increased advertising demand intake by 50%, and recorded over $1 billion in ad sales within 2.5 years of the software integration.

What services do St. Louis software development firms typically provide?

St. Louis software development firms typically provide the following services:

  1. Software consulting
    Analyzing business requirements, selecting appropriate technologies, and providing expertise in system design, architecture, and integration to optimize software performance
  2. Custom software development
    Creating software solutions from scratch or adapting existing features to modernize current infrastructure and increase its usability
  3. Website design and development
    Building the front- and back-end of a website to deliver interactive and engaging user experiences while ensuring brand and vision alignment
  4. Mobile app development
    Creating user-centered, intuitive, and interoperable applications for mobile devices, including smartphones, tablets, digital assistants, and smartwatches
  5. Cloud development
    Using platforms like Microsoft Azure, Google Cloud, and Amazon Web Services to build scalable, accessible, secure, and accessible cloud-based solutions
  6. Quality assurance
    Conducting user acceptance and unit testing to identify and resolve software defects before the product is deployed to a live environment
  7. Software maintenance
    Conducting performance enhancement, deploying security patches, and fixing arising issues to ensure proper functionality
  8. Digital transformation
    Re-engineering existing software systems and enhancing them with AI, cloud computing, data analytics, and automation to optimize workflows and maximize efficiency

Some other sought-after services by St. Louis software development firms include system integration, MVP development, legacy software modernization, and more.

How many software development companies are in St. Louis?

While there is no accurate data on the number of software development companies in St. Louis, data shows there are about 42,000 computer and math workers in the city. The city boasts a diverse economy that fuels software businesses of all sizes — corporate entities and major firms alongside emerging startups and driven entrepreneurs — cultivating a dynamic business sector.

On DesignRush, there are over 7,500 software development companies listed, 20 of which have offices in St. Louis. Here is a breakdown of the agencies based on company size:

Company size Percentage of agencies
Small (Under 49 employees) 55%
Mid-sized (50-249 employees) 15%
Large (250+ employees) 5%
Enterprise (1000+ employees) 25%

The dominance of small-sized software development companies in St. Louis suggests a preference for boutique and specialized firms with competitive rates and more personalized service. On the other hand, the lower percentage of large and enterprise firms suggests that the city, despite having a strong tech presence, is not a primary hub for major software corporations. This could be attributed to the lower concentration of Fortune 500 tech companies or investment opportunities favoring emerging businesses over large-scale operations.

How much do software development companies in St. Louis charge for their services?

The rates software development companies in St. Louis charge for their services depend on the project scope and complexity, timeline, tech stack, and team size and expertise. However, on average, businesses can expect to pay from $50,000 to $250,000.

Another factor impacting development rates is the pricing model. Common compensation models for software development include:

  • Fixed price
    A set rate for the entire project, making it ideal for initiatives with clearly defined specs, timelines, and budgets
  • Hourly rate
    Accounts for the total hours worked on the product, optimal for projects with defined project scopes and quick turnaround times
  • Milestone-based
    Payments are structured around specific project deliverables, providing a practical option for long-term projects
  • Retainer
    Invoices a fixed monthly or annual fee agreed upon at the start of the project, suitable for projects that require ongoing software maintenance and support
  • Dedicated team
    Offers the option to hire a dedicated team of developers for a fixed monthly fee, wherein the service procurer manages and assigns the work
  • Revenue-sharing model
    Charges a percentage of the revenue generated from the software product, posing a practical option for tech startups with limited budgets

The top 50 St. Louis software development companies on DesignRush charge an average hourly rate of $87. 25% of the agencies accept project budgets ranging from $1,000-$10,000, offering competitive rates for software projects with simple architecture and features. In contrast, 15% require a budget in the range of $25,000 to $50,000, providing premium software services for more complex and extensive projects.

Explore our directory to find local software development firms in St. Louis that align with your budget and use our filters to customize your search by hourly rate, industry, and team size.

How do I choose the best software company in St. Louis?

To choose the best software company in St. Louis, focus on options that can match your technical requirements and overall criteria. Here are some steps to guide you:

  1. Specify your requirements
    Define the key project specifications — preferred tech stack, features and functionalities, objectives, target users, and timeline.
  2. Define a budget
    Set a feasible budget you can allocate toward the project, factoring in the scope, complexity, and deadline restrictions.
  3. Look for potential partners
    Search for St. Louis software development companies on Google, marketplaces, publications, and credible directories like DesignRush, and ask colleagues for referrals.
  4. Perform due diligence
    Vet the agencies’ credibility by looking through their portfolios, case studies, client reviews, testimonials, and recognitions, and shortlist those with proven experience in your industry.
  5. Submit a request for proposal (RFP)
    Send RFPs featuring your business profile, project scope, deadline, and budget to your chosen candidates and compare their proposals to select an option that provides the most value for money.
  6. Schedule interviews
    Discuss the project details and ask the agencies about their security practices and technical experience.
  7. Look for strategic fit
    Assess the team chemistry, cultural fit, work ethic, and the candidate’s ability to align with your vision.
  8. Choose your agency
    Finalize the contract with your chosen agency and ensure it outlines the project scope, deliverables, payment schedules, and intellectual property rights.

Looking for a software development company in St. Louis? Visit our Marketplace and send us your project requirements. Based on your requirements, we’ll match you with five candidates for free!

What software development processes do companies in St. Louis follow?

Software development companies in St. Louis follow a standardized development process to optimize workflows, facilitate better communication, and ensure quality output that aligns with clients’ requirements. The process typically comprises:

  • Planning
    Defining the software’s core features, functionalities, tech stack, integrations, and timeline
  • Feasibility analysis
    Assessing the technical specs of the project to identify potential limitations and risks and make the necessary scope adjustments
  • Design
    Creating the project’s strategic roadmap, software architecture, and user interface
  • Prototyping
    Producing interactive mockups based on the approved designs to provide a realistic representation of the final product and test user interaction
  • Development
    Encoding the actual software using programming languages like PHP, JavaScript, and C++ and platforms like Flutter, Salesforce, and Xamarin, depending on the project’s specs
  • Product testing
    Testing whether the finished software works according to parameters like accessibility, system compatibility, security, and speed, and fixing arising bugs and operational glitches
  • Deployment and launch
    Moving the software to a live environment where the intended users can access and use it
  • Maintenance
    Ensuring the released software works optimally by installing updates, fixing performance errors, enhancing features, and providing helpdesk support

What industries do St. Louis software development firms usually serve?

St. Louis software development firms usually serve the following industries:

  • Healthcare and Education
    Employing about 20% of the non-farm professionals in St. Louis, healthcare and education encompass one of the biggest industries in the city. Hospitals, clinics, and med-edu institutions work with software development firms to advance their medical capacities and patient care, facilitate more accurate patient diagnostics, and streamline administrative tasks.
  • AgTech
    St. Louis boasts a robust AgTech ecosystem, home to industry leaders like Bayer CropScience, Danforth Plant Science Center, and Bunge. Businesses in this sector partner with software development companies to modernize their systems and introduce emerging technologies, like IoT, for smarter decision-making, improved resource management, and enhanced productivity in farming operations.
  • Retail
    Retail is considered one of the most lucrative sectors in the city, registering over 105,000 professionals in 2023. Merchandisers, shop owners, and other businesses in the vertical employ local software developers for digital solutions that optimize their inventory management, increase supply chain efficiency, and streamline administrative work.
  • Finance
    St. Louis has one of the highest concentrations of financial institutions in the country, with over 7,900 registered businesses. Organizations in this sector collaborate with local St. Louis software development firms to gain more accurate financial forecasting via data analytics solutions and provide their clients greater convenience through feature-rich e-banking applications.
  • Manufacturing
    Registering a 0.4% compound annual growth rate between 2019 and 2023, manufacturing is among the most steadily growing sectors in St. Louis. Businesses in this vertical hire software developers to develop IoT and robotics solutions to digitize and automate processes and boost daily output and overall profits.

While St. Louis software development firms commonly serve the five listed industries, their expertise extends to the automotive, eCommerce, public sectors, and more. In that regard, our directory filters can help you find an agency that specializes in your industry.

What questions should I ask a software development company in St. Louis before hiring one?

Here are some questions you should ask before hiring a software development company in St. Louis:

Its Relevant Background

  1. Have you worked on similar projects before? Can you share case studies?
  2. How familiar are you with my industry? Can you provide client references?
  3. What advantages can I experience by hiring a software development company in St. Louis?
  4. What coding languages does your team specialize in?

Its Services and Processes

  1. What services are covered in your software development suite?
  2. What is your preferred development methodology and why?
  3. What kind of testing do you perform before and after launch?
  4. Who will own the source code?
  5. How do you ensure the security of your products?
  6. What steps do you take to ensure regulation compliance?
  7. How do you approach changes in project scope?
  8. Do you provide post-launch support services? What is the additional fee for these?
  9. Can you walk me through your disaster recovery plan?

Related to Your Project

  1. To what extent will my team be involved?
  2. What is your estimated timeline for my project?
  3. Who will work on my project? What level of experience do these developers have?
  4. How do you plan to integrate the new solution across my existing system?
  5. Will any of my business-critical operations be interrupted during any part of the development process?

What are the top 10 best-rated software development companies in St. Louis?

The top 10 best-rated software development companies in St. Louis are:

  1. Exoft
    • 4.8 stars on DesignRush (13 reviews)
    • 4.7 stars on Google (43 reviews)
    • Top clients: Bridgestone, ViCLinic, Eloquenti, tripLV
  2. Ecom Development NYC
    • 4.8 stars on DesignRush (8 reviews)
    • Top clients: Marker & Son, Kerusso, Friedman’s Shoes, ETTVI
  3. Crowe
    • 4.5 stars on DesignRush (2 reviews)
    • Top clients: Denny’s, Lionel, Virginia Passenger Rail Authority, Hannibal Industries
  4. Grant Thornton
    • 4.3 stars on DesignRush (1 review)
    • Top clients: Starbird, Clayton, Black Diamond Therapeutics, Caesars Entertainment
  5. Tecziq Solutions
    • 4.3 stars on DesignRush (1 review)
    • 3.6 stars on Google (20 reviews)
    • Top clients: GBiosciences, SmithAnalytical, Vallar, ApexHuman
  6. Accenture
    • 4.1 stars on DesignRush (2 reviews)
    • 5.0 stars on Google (3 reviews)
    • Top clients: Fortune, NBC Universal, Uber, ESPN
  7. VIVIDSITES
    • 5.0 stars on Google (22 reviews)
    • Top clients: Reebok, Purina, Washington University School of Medicine, Girl Scouts of Eastern Missouri
  8. SteadyRain
    • 5.0 stars on Google (2 reviews)
    • Top clients: First Bank, Dent Wizard, Washington University in St. Louis, Botanical Garden
  9. Altec Design
    • 4.8 stars on Google (25 reviews)
    • Top clients: St. Louis Back Clinic, Chicago Children’s Museum, Colt Aviation, St. West County EMS Fire
  10. 1904Labs
    • 4.9 stars on Google (11 reviews)
    • Top clients: Bayer Crop Capital, Washington University in St. Louis, RGA, Spire

Why People Trust DesignRush

Rated 4.7 on Google and Trustpilot, DesignRush Agency Directory is a reliable resource for finding software companies in St. Louis. 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.

Most popular cities in the U.S. for software developers are:

  1. Miami
  2. San Francisco
  3. Atlanta
  4. Seattle
  5. Dallas
  6. New York City
  7. Chicago
  8. Los Angeles
  9. Philadelphia
  10. Phoenix
About The Author and Expert Reviewer
Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her diverse background in marketing, publishing, and museum curation has enhanced her writing and research abilities. This unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.
Sergio Oliveira is a seasoned software engineer and tech leader with deep expertise in C#, .NET, SQL, Azure, and scalable systems architecture. Holding a BSc in Computer Science and Finance, he pairs technical precision with strategic vision, shaped by years of hands-on professional experience in organizations across Europe and the US. At DesignRush, he oversees the full development lifecycle, from roadmap planning and features prioritization to UX refinement and platform optimization. His work ensures that technical execution aligns seamlessly with the company's goals, growth, and continuous innovation.