Pinnacle
API & SDK for RCS (the next-generation of texting)
Based based in San Francisco, CA, USA, Pinnacle works in b2b, founded in 2010.
Profile
Pinnacle is an API for RCS, the new standard for SMS for app-like text messages.
Within the b2b space, the company focuses on its core offering rather than a broad product line.
The business is associated with San Francisco, CA, USA.
Directory data places it at the Summer 2024 stage.
The company reports a headcount in the 2 range.
Public records show total funding of about $3M.
Directory analysis
Pinnacle offers an API and SDK that enables developers to integrate Rich Communication Services (RCS), the next generation of SMS, into their applications, delivering app‑like text messaging experiences over mobile networks. Founded in 2010 and headquartered in San Francisco, the company has raised $3 million in funding.
Positioning: Pinnacle operates in the B2B communications space, targeting businesses that need modern messaging capabilities. Its RCS offering positions it as a niche player competing with larger messaging platforms.
Note: Pinnacle is a San Francisco‑based startup providing an RCS API and SDK.
Auto-generated directory analysis from public data · updated 11 Oct 2026. Informational only, not investment advice.
| Sector | B2B |
|---|---|
| Headquarters | San Francisco, CA, USA |
| Country | United States |
| Founded | 2010 |
| Employees | 2 |
| Stage | Summer 2024 |
| Total funding | $3,000,000 |
Website: pinnacle.sh
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