> 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/san-antonio-tx/software-development/ # Software Companies in San Antonio, TX The bigger software companies headquartered in San Antonio, TX, 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 San Antonio, TX, the biggest by headcount range include Sinch Mailgun, Searchspring Now Athos Commerce and Klevu Now Athos Commerce. They are mostly very small: 72% have 50 or fewer employees. ## Which software companies are in San Antonio? Among the companies whose public profile lists Software Development as their industry and San Antonio, TX as their headquarters, the biggest by headcount range include Sinch Mailgun, Searchspring Now Athos Commerce, Klevu Now Athos Commerce, 6connex and Dura Software. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Sinch Mailgun | 201 to 500 | | Searchspring Now Athos Commerce | 201 to 500 | | Klevu Now Athos Commerce | 201 to 500 | | 6connex | 201 to 500 | | Dura Software | 201 to 500 | | Shadow's Edge Software | 201 to 500 | | Realtime Eclinical Solutions | 51 to 200 | | Territorium | 51 to 200 | | Kespry | 51 to 200 | | Codeup | 51 to 200 | | Globalscape | 51 to 200 | | Swivel | 51 to 200 | | Earth Class Mail | 51 to 200 | | Parlevel Systems | 51 to 200 | | Skipcart | 51 to 200 | | Diligent Consulting | 51 to 200 | | Tridiagonal Software | 51 to 200 | | Averisource | 51 to 200 | | Sevocity Electronic Health Records | 51 to 200 | | Goassetworks | 51 to 200 | | Maneksoft Usa | 51 to 200 | | The Website Worker | 51 to 200 | | Eclose | 51 to 200 | | E. A. Brown Tomatoes | 51 to 200 | | Gigster | 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 San Antonio do? Software Development is a broad label. The most common NAICS codes among them are 541511 (53%), 513210 (18%) and 424480 (6%). **Figure: What software companies in San Antonio do.** Bars for the share of counted software companies with each code: 541511 53%, 513210 18%, 424480 6%, 519290 6%, 541512 6%, 541613 6%, 713990 6%. *Share of counted software companies in San Antonio by their NAICS code.* [NAICS 541511](https://enrich.chat/naics/541511/)[NAICS 513210](https://enrich.chat/naics/513210/)[NAICS 541512](https://enrich.chat/naics/541512/)[NAICS 541613](https://enrich.chat/naics/541613/) ## How big are they? 72% of the software companies counted in San Antonio 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 San Antonio.** Seven columns for the share of counted software companies in San Antonio in each employee range: 11 to 50 72%, 51 to 200 21%, 201 to 500 7%, 501 to 1,000 0%, 1,001 to 5,000 0%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted software companies in San Antonio in each employee range.* ## How old are they? Most were founded in the 2010s (48%), then the 1980s (15%). **Figure: When software companies in San Antonio were founded.** Eight columns for the share of counted software companies in San Antonio founded in each era: Before 1960 2%, 1960s 0%, 1970s 0%, 1980s 15%, 1990s 5%, 2000s 15%, 2010s 48%, 2020s 15%. *Share of counted software companies in San Antonio by the era they were founded in, for the ones that list a founding year.* ## How software companies compare - 63% were founded in 2010 or later, against 54% across other cities on this site. ## How do you reach the people at software companies in San Antonio? 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 San Antonio, TX ``` ### 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 San Antonio, TX, 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 San Antonio: [Construction Companies](https://enrich.chat/companies-in/san-antonio-tx/construction/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/san-antonio-tx/hospitals-and-health-care/)[Real Estate Companies](https://enrich.chat/companies-in/san-antonio-tx/real-estate/)[IT Services Companies](https://enrich.chat/companies-in/san-antonio-tx/it-services-and-it-consulting/)[Advertising Agencies](https://enrich.chat/companies-in/san-antonio-tx/advertising-services/)[Insurance Companies](https://enrich.chat/companies-in/san-antonio-tx/insurance/)[Financial Services Companies](https://enrich.chat/companies-in/san-antonio-tx/financial-services/)[Nonprofit Organizations](https://enrich.chat/companies-in/san-antonio-tx/non-profit-organizations/)[Consulting Firms](https://enrich.chat/companies-in/san-antonio-tx/business-consulting-and-services/)[Oil and Gas Companies](https://enrich.chat/companies-in/san-antonio-tx/oil-and-gas/)[Facilities Services Companies](https://enrich.chat/companies-in/san-antonio-tx/facilities-services/)[Motor Vehicle Manufacturers](https://enrich.chat/companies-in/san-antonio-tx/motor-vehicle-manufacturing/)[Staffing and Recruiting Firms](https://enrich.chat/companies-in/san-antonio-tx/staffing-and-recruiting/)[Education Organizations](https://enrich.chat/companies-in/san-antonio-tx/education-administration-programs/)[Telecommunications Companies](https://enrich.chat/companies-in/san-antonio-tx/telecommunications/)[All of San Antonio](https://enrich.chat/companies-in/san-antonio-tx/) 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 San Antonio? Among those counted, they include Sinch Mailgun, Searchspring Now Athos Commerce, Klevu Now Athos Commerce, 6connex and Dura Software, ranked by headcount range. ### How big are software companies in San Antonio? 72% 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 San Antonio, TX. ## Try this prompt Find the people at software companies in San Antonio ```text Use www.enrich.chat to find the engineering, product and revenue leaders at software companies in San Antonio, TX, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Construction Companies in San Antonio](https://enrich.chat/companies-in/san-antonio-tx/construction/) - [Hospitals and Health Care Organizations in San Antonio](https://enrich.chat/companies-in/san-antonio-tx/hospitals-and-health-care/) - [Real Estate Companies in San Antonio](https://enrich.chat/companies-in/san-antonio-tx/real-estate/) - [IT Services Companies in San Antonio](https://enrich.chat/companies-in/san-antonio-tx/it-services-and-it-consulting/) - [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/)