Technologies / Email and communications / GatewayAPI
Companies using GatewayAPI
GatewayAPI is a messaging platform for sending SMS, RCS and email through APIs, with features such as virtual numbers, shortcodes, keywords and number lookup. It is used by businesses to send marketing, transactional and service messages to customers.
Summarized from gatewayapi.com on 9 Nov 2026.
Seen in6 subprocessor lists3 privacy policies
Companies using GatewayAPI
Subprocessor listPrivacy policyWebsiteJob postings
| Company | Evidence |
|---|---|
A company can count under more than one kind of evidence. Our coverage is partial, so this is not everyone using GatewayAPI.
Vendor certifications
Held by GatewayAPI (gatewayapi.com), the company. A company's certification may not cover every product it sells. See GatewayAPI.
We found no certification statement on the pages we read. This does not mean GatewayAPI lacks one.
We last read its homepage on 13 Nov 2026 and the FedRAMP Marketplace on 8 Nov 2026. A standard not shown here was not found in these sources. That does not mean GatewayAPI lacks it.
A company's statement is shown as it wrote it, and is not verification. A registry listing is shown as the registry lists it. Neither is our assessment of GatewayAPI's compliance. How we read certifications.
Questions
How many companies use GatewayAPI?
7 companies in StrataDB's data have public evidence for GatewayAPI, and 6 of them name it in their own subprocessor list. Our coverage is partial, so the real number is higher.
Which companies use GatewayAPI?
Available, CleanTracker, Fourth, Mena.ai and Ordicall FlexCo, and 2 more companies. Each one links to the evidence behind it.
How does StrataDB know a company uses GatewayAPI?
From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.
Build your list of GatewayAPI customers
See every company we hold evidence for, with its source, and get an alert when a company adds or drops GatewayAPI.
- Every company and vendor, with its public source
- 100 API calls a month, plus MCP and the Chrome extension
- Work email only. No card, no sales call