Discover the best software companies in Missouri that can develop custom software or/and customize existing solutions as well as provide other specialized software services. Our experts ranked them by their rates, reviews, size and expertise to help you choose a partner suited for your budget and requirements easily.

Best Missouri Software Development Firm Rankings

5 Companies-Rankings updated: September 03, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

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United States × Missouri × Legal ×Clear Filters

  • Odezzi

    Custom tech designed to drive your business forward

    Odezzi builds custom automation, AI, and software systems that turn messy processes into reliable workflows. Drawing on experience in data-heavy, regulated industries, we use modern cloud platforms to deliver maintainable tech stacks built for long-term growth...

    Top Services:

    • Software Development
    • IT Services
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $110/hr
    Minimal Budget
    $10,000 - $25,000

    Odezzi Services

    • Software Development
    • IT Services
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Software & IT Services Industry
    • AI Industry
    • Finance Industry
    • Legal Industry
    • Corporate Services
    • Education Industry
    Data sourced from the agency's DesignRush profile

    Odezzi Reviews & Testimonials

    • Robin Kerns
      Robin Kerns Owner at CivicMix
      5.0★

      Software Development Review from Robin Kerns

      The team at Odezzi helped turn our unique, industry leading idea into reality! Very professional to work with and made sure we as a start up, had the support needed to execute the vision.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit WebsiteView Profile
    4.3 4.3 (1)

  • STL Website Development

    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 prioritizes collaboration and creativity. As such, STL Website Development brings the client's vision to life while...

    Top Services:

    • Web Development
    • WordPress Website Design
    • Web Design
    • eCommerce Development
    • Logo Design
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    15 Projects Listed

    STL Website Development Services

    • Web Development
    • WordPress Website Design
    • Web Design
    • eCommerce Development
    • Logo Design
    • Software Development
    • IT Services
    • Cybersecurity
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • FavorHealth
    • CNX Corp
    • WhereMyRefundAt
    • LowVG
    • Archetypes At Work
    • Westwood Tax & Consulting
    • BeeSimplePets Care Services
    • Continuum Fit
    • Hilliard Law GA
    • Word of Life Christian Church
    Data sourced from the agency's DesignRush profile
    Visit WebsiteView Profile

  • StrategiCom

    Better Technology, Better Pricing, Better Support

    Medical clinics, regional banks, and organizations of all kinds rely on StrategiCom for vendor-neutral advisory to modernize their telecommunications and technology stack. Whether you need to upgrade your phone system/PBX to unified communications as a service (UCaaS) or call center as a service (CCaaS)...

    Top Services:

    • Software Development
    Location
    O'Fallon, Missouri
    Number of Employees
    50 - 99
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000

    StrategiCom Services

    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Finance Industry
    • Manufacturing Industry
    • Health Care Industry
    Data sourced from the agency's DesignRush profile

    StrategiCom Reviews & Testimonials

    • Chris Gloeckner
      Chris Gloeckner Review from Google
      5.0★

      Chris Gloeckner's Review Sourced from Google

      I love working with the guys over at Strategicom. They are very responsive and make my job easier.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit WebsiteView Profile
    5.0 5.0 (1)

  • 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 over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and...

    Top Services:

    • Accounting
    • Business Consulting
    • Market Research
    • HR Outsourcing
    • Software Development
    • Show more
    Location
    Kansas City, Missouri
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Grant Thornton Services

    • Accounting
    • Business Consulting
    • Market Research
    • HR Outsourcing
    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Financial industry
    • Real estate industry
    • Media and Entertainment industry
    Data sourced from the agency's DesignRush profile

    Grant Thornton Reviews & Testimonials

    • Theodore Mall
      Theodore Mall Review from Google
      4.0★

      Theodore Mall's Review Sourced from Google

      One of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenues in excess of $1.9 billion and operates more than 50 offices.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit WebsiteView Profile
    4.5 4.5 (13)

  • 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 connections, and delivered results that move brands forward...

    Top Services:

    • Digital Marketing
    • Branding
    • Web Development
    • Software Development
    • Web Design
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $180/hr
    Minimal Budget
    $1,000 - $10,000

    Paradigm Services

    • Digital Marketing
    • Branding
    • Web Development
    • Software Development
    • Web Design
    • Print Design
    • Graphic Design
    • Mobile App Development
    • Content Marketing
    • SEO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Nestlé Purina
    • Panera Bread Company
    • Spectrum
    • Wells Fargo Advisors
    • The Gateway Arch
    • Bethesda
    • Saint Louis University
    • The Muny
    • Brava Lubricants
    • Paraquad
    Data sourced from the agency's DesignRush profile

    Paradigm Reviews & Testimonials

    • Diane Mueller
      Diane Mueller Review from Google
      5.0★

      Diane Mueller's Review Sourced from Google

      Paradigm has been great to work with on our website project. With all the customization our site needed, Paradigm always had a solution for us. Would not hesitate at all to give Paradigm any projects!

    • Bob Jenkins
      Bob Jenkins Review from Google
      5.0★

      Bob Jenkins's Review Sourced from Google

      We chose PNMG to develop our website in 2018 and have been with them ever since! They are very conscientious of their work and the quality of the employees are top notch, not to mention the great support they add. We have monthly meetings to keep everything current and are very pleased we chose them to partner with!

    • Kristin Seymour MSN, RN, AHCNS-BC
      Kristin Seymour MSN, RN, AHCNS-BC Review from Google
      5.0★

      Kristin Seymour MSN, RN, AHCNS-BC's Review Sourced from Google

      Paradigm New Media Group is the best in St. Louis for producing digital media. They are professional, responsive, & creative. Paradigm improved the navigation of my website and set up an e-commerce account that is user friendly. Paradigm delivers high-caliber digital media, and stayed within my budget- that is huge! Thanks guys!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit WebsiteView Profile
    5.0 5.0 (6)

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