> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-in/st-louis-mo/software-development/ # Software Companies in St. Louis, MO The bigger software companies headquartered in St. Louis, MO, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the software companies counted in St. Louis, MO, the biggest by headcount range include Ansira, Momentus Technologies and Marin Software. They are mostly very small: 82% have 50 or fewer employees. ## Which software companies are in St. Louis? Among the companies whose public profile lists Software Development as their industry and St. Louis, MO as their headquarters, the biggest by headcount range include Ansira, Momentus Technologies, Marin Software, Drivecentric and Balto. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Ansira | 1,001 to 5,000 | | Momentus Technologies | 201 to 500 | | Marin Software | 201 to 500 | | Drivecentric | 201 to 500 | | Balto | 51 to 200 | | Juristat | 51 to 200 | | Omnigo | 51 to 200 | | 1904labs | 51 to 200 | | Ocelot Consulting | 51 to 200 | | Upland Second Street | 51 to 200 | | Coolfire | 51 to 200 | | 6storage Software Solutions | 51 to 200 | | Tribus Group | 51 to 200 | | Dev Up Conference - St. Louis | 51 to 200 | | Harris Enterprise Resource Planning | 51 to 200 | | Fleetsharp | 51 to 200 | | Emass | 51 to 200 | | Adalo | 11 to 50 | | Customily Ycs21 | 11 to 50 | | Infodash | 11 to 50 | | Optifunder | 11 to 50 | | Deck Commerce | 11 to 50 | | Rovertown | 11 to 50 | | Connect 365 | 11 to 50 | | Evolve24 | 11 to 50 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## What do software companies in St. Louis do? Software Development is a broad label. The most common NAICS codes among them are 513210 (31%), 541511 (31%) and 423430 (12%). **Figure: What software companies in St. Louis do.** Bars for the share of counted software companies with each code: 513210 31%, 541511 31%, 423430 12%, 423710 6%, 541380 6%, 541512 6%, 541810 6%. *Share of counted software companies in St. Louis by their NAICS code.* [NAICS 513210](https://enrich.chat/naics/513210/)[NAICS 541511](https://enrich.chat/naics/541511/)[NAICS 423430](https://enrich.chat/naics/423430/)[NAICS 541512](https://enrich.chat/naics/541512/)[NAICS 541810](https://enrich.chat/naics/541810/) ## How big are they? 82% of the software companies counted in St. Louis have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of software companies in St. Louis.** Seven columns for the share of counted software companies in St. Louis in each employee range: 11 to 50 82%, 51 to 200 14%, 201 to 500 3%, 501 to 1,000 0%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted software companies in St. Louis in each employee range.* ## How old are they? Most were founded in the 2010s (37%), then the 2000s (23%). **Figure: When software companies in St. Louis were founded.** Eight columns for the share of counted software companies in St. Louis founded in each era: Before 1960 3%, 1960s 0%, 1970s 3%, 1980s 10%, 1990s 11%, 2000s 23%, 2010s 37%, 2020s 13%. *Share of counted software companies in St. Louis by the era they were founded in, for the ones that list a founding year.* ## How software companies compare - 82% of software companies in St. Louis have 50 or fewer employees, against 71% across other cities on this site. ## How do you reach the people at software companies in St. Louis? The people to talk to are usually engineering, product and revenue leaders. Build the list in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the software companies in St. Louis, MO ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the engineering, product and revenue leaders at software companies in St. Louis, MO, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Other industries in St. Louis: [Construction Companies](https://enrich.chat/companies-in/st-louis-mo/construction/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/st-louis-mo/hospitals-and-health-care/)[Advertising Agencies](https://enrich.chat/companies-in/st-louis-mo/advertising-services/)[Real Estate Companies](https://enrich.chat/companies-in/st-louis-mo/real-estate/)[IT Services Companies](https://enrich.chat/companies-in/st-louis-mo/it-services-and-it-consulting/)[Nonprofit Organizations](https://enrich.chat/companies-in/st-louis-mo/non-profit-organizations/)[Financial Services Companies](https://enrich.chat/companies-in/st-louis-mo/financial-services/)[Insurance Companies](https://enrich.chat/companies-in/st-louis-mo/insurance/)[Architecture Firms](https://enrich.chat/companies-in/st-louis-mo/architecture-and-planning/)[Manufacturers](https://enrich.chat/companies-in/st-louis-mo/manufacturing/)[Consulting Firms](https://enrich.chat/companies-in/st-louis-mo/business-consulting-and-services/)[Machinery Manufacturers](https://enrich.chat/companies-in/st-louis-mo/machinery-manufacturing/)[Wholesale Distributors](https://enrich.chat/companies-in/st-louis-mo/wholesale/)[Facilities Services Companies](https://enrich.chat/companies-in/st-louis-mo/facilities-services/)[All of St. Louis](https://enrich.chat/companies-in/st-louis-mo/) Software Companies in other cities: [San Francisco, CA](https://enrich.chat/companies-in/san-francisco-ca/software-development/)[New York, NY](https://enrich.chat/companies-in/new-york-ny/software-development/)[Austin, TX](https://enrich.chat/companies-in/austin-tx/software-development/)[Los Angeles, CA](https://enrich.chat/companies-in/los-angeles-ca/software-development/)[Boston, MA](https://enrich.chat/companies-in/boston-ma/software-development/)[Chicago, IL](https://enrich.chat/companies-in/chicago-il/software-development/)[Atlanta, GA](https://enrich.chat/companies-in/atlanta-ga/software-development/)[Houston, TX](https://enrich.chat/companies-in/houston-tx/software-development/)[Seattle, WA](https://enrich.chat/companies-in/seattle-wa/software-development/)[Miami, FL](https://enrich.chat/companies-in/miami-fl/software-development/) ## Frequently asked questions ### Which are the biggest software companies in St. Louis? Among those counted, they include Ansira, Momentus Technologies, Marin Software, Drivecentric and Balto, ranked by headcount range. ### How big are software companies in St. Louis? 82% of those counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Which companies count as software development? Companies whose public profile lists Software Development as their industry and whose headquarters are in St. Louis, MO. ## Try this prompt Find the people at software companies in St. Louis ```text Use www.enrich.chat to find the engineering, product and revenue leaders at software companies in St. Louis, MO, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Construction Companies in St. Louis](https://enrich.chat/companies-in/st-louis-mo/construction/) - [Hospitals and Health Care Organizations in St. Louis](https://enrich.chat/companies-in/st-louis-mo/hospitals-and-health-care/) - [Advertising Agencies in St. Louis](https://enrich.chat/companies-in/st-louis-mo/advertising-services/) - [Real Estate Companies in St. Louis](https://enrich.chat/companies-in/st-louis-mo/real-estate/) - [Software Companies in San Francisco](https://enrich.chat/companies-in/san-francisco-ca/software-development/) - [Software Companies in New York](https://enrich.chat/companies-in/new-york-ny/software-development/) - [Software Companies in Austin](https://enrich.chat/companies-in/austin-tx/software-development/) - [Software Companies in Los Angeles](https://enrich.chat/companies-in/los-angeles-ca/software-development/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)