Sendo went through Y Combinator in the Winter 2022 batch and describes itself as: The best SMS/RCS API for startups. As of November 10, 2026, Y Combinator's directory lists it as Inactive (Y Combinator directory entry, February 11, 2022).
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Key facts
- · Batch: Winter 2022 · Sendo in the Y Combinator directory
- · Industry: B2B · Sendo in the Y Combinator directory
- · Team size: 1 · Sendo in the Y Combinator directory
- · Based: New York City, NY, USA; Remote · Sendo in the Y Combinator directory
- · Status: Inactive, as listed by Y Combinator · Sendo in the Y Combinator directory
Sendo went through Y Combinator in the Winter 2022 batch, describing itself as The best SMS/RCS API for startups. Y Combinator's company directory lists it as Inactive. The directory does not say why a company stopped, and this page does not guess.
- Batch
- Winter 2022
- What they did
- The best SMS/RCS API for startups
- Industry
- B2B
- Team size
- 1
- Based
- New York City, NY, USA; Remote
- Status
- Inactive, as listed by Y Combinator
Its batch
Winter 2022 had 403 companies in YC's listing: 311 Active, 39 Acquired, 0 Public and 53 Inactive, so Sendo is one of 53 companies from that batch listed as Inactive (13%). Across YC batches at least two years old, 23% of companies are listed Inactive.
Statuses are Y Combinator's own listing in its public company directory, read on the date shown. YC's directory can drop companies altogether, so the Inactive counts here are a floor, not a full count of companies that stopped. Acquired and Public are as YC lists them; neither says anything about the price or the outcome for founders.
The record: Sendo in the Y Combinator directory. Measured 2026-11-10 from Y Combinator's company directory.
YC Winter 2022All shut-down YC companiesYC outcomes
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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
A Full Report on Sendo: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Sendo covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
1 cited source found
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