San Antonio is home to 11 SaaS and AI products actively bought by companies on Cledara, led by Sinch Mailgun (0.26% market share). This ranking is built from real purchasing data — what companies actually pay for, not funding announcements — and updates monthly. Data as of 17 August 2026, 14:36 UTC.
| # | Product | Category | Description | Founded | Employees | Funding | 12-mo rank |
|---|---|---|---|---|---|---|---|
| 1 | Sinch Mailgun | Marketing & Growth | Sinch Mailgun is a transactional email API platform designed for developers. It helps solve the business problem of reliably sending and delivering emails to users. The service offers several use cases, including sending email notifications, transactional emails, and marketing campaigns. | 2,010 | 201-500 employees | -5 | |
| 2 | Filestack | Engineering & DevOps | Filestack is a set of tools and APIs to upload, transform, and deliver files. It supports various file types, allows for seamless integration, and offers powerful capabilities like URL-based transformations and security features. | 2,012 | 51-200 employees | +194 | |
| 3 | Rackspace Email | Collaboration & Productivity | Rackspace Email is a email hosting solution designed for businesses. | 1,998 | 5,001-10,000 employees | +7 | |
| 4 | Doppler | Marketing & Growth | Doppler is an email and automation marketing platform designed to help brands grow by leveraging omnichannel, automation, and data marketing strategies. It offers tools for sending campaigns, configuring messages based on user behaviour, and analyzing results to optimize decision-making. With features such as email marketing, SMS marketing, push notifications, and forms, Doppler serves businesses | 2,006 | 51-200 employees | -36 | |
| 5 | Moki | IT & Security | Moki's cloud-based MDM solution enables real-time monitoring, management, and secure deployment of mobile devices across platforms like iOS and Android, with remote troubleshooting and lockdown features. | 2,012 | 11-50 employees | Under $1M | |
| 6 | Keen | Data & Analytics | Keen is a fully managed event streaming platform built on Apache Kafka, designed to collect, store, and analyze event data in real-time. It provides tools for real-time analytics, embedded visualizations, and offers solutions for product analytics. | 2,011 | 51-200 employees | $10M - $25M | -100 |
| 7 | MyGet | Engineering & DevOps | MyGet is a package management service that allows teams to host and manage NuGet, npm, Bower, Maven, PHP Composer, VSIX, Python, and Ruby packages in one place. It integrates with existing source code ecosystems to provide centralized package management, enforcing compliance and governance across the software development lifecycle. | 2,013 | 11-50 employees | -98 | |
| 8 | Sendspark | Sales & Revenue | Sendspark is a cloud-based platform that enables users to create personalized video messages for outreach, integrating with CRMs and email platforms, with analytics for engagement tracking. | 2,019 | 11-50 employees | ||
| 9 | Impactable | Marketing & Growth | 2,018 | 51-200 employees | |||
| 10 | CyberFortress | IT & Security | 51-200 employees | $1M - $5M | |||
| 11 | Pressable | Engineering & DevOps | 2,010 | 51-200 employees | $1M - $5M |
The complete list is available as <a href="/api/export/startups/united-states/san-antonio.csv">CSV</a> or <a href="/api/export/startups/united-states/san-antonio.json">JSON</a>.
The largest SaaS company from San Antonio by headcount is Rackspace Email (5,001-10,000 employees).
4 of 11 have disclosed funding, topped by Keen ($10M - $25M).
The newest entrant is Sendspark (founded 2019).
The oldest is Rackspace Email (founded 1998); the newest, Sendspark (2019).
| Category | Products |
|---|---|
| Marketing & Growth | 3 |
| Engineering & DevOps | 3 |
| IT & Security | 2 |
| Collaboration & Productivity | 1 |
| Data & Analytics | 1 |
| Sales & Revenue | 1 |
San Antonio's SaaS scene skews toward Marketing & Growth — 3 of its 11 tracked companies build marketing & growth software.
San Antonio accounts for 0% of the 3,476 ranked SaaS products founded in the United States.
Sinch Mailgun, Filestack and Rackspace Email are the most-used SaaS products founded in San Antonio, based on real purchasing data from companies on Cledara. Last updated 17 August 2026, 14:36 UTC.
11 SaaS and AI products founded in San Antonio are actively bought by companies tracked on Cledara. Aggregators list more registered startups; this ranking counts only products with real, current usage.
Moki and Keen show the strongest rank gains among San Antonio-founded products over the last 90 days.
Most lists rank San Antonio startups by funding raised or valuation. This one ranks them by adoption — how many companies actually pay for each product — measured monthly from Cledara's purchasing data.