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Rarebird (YC S20) — Elevating mental health to be a part of your daily coffee ritual

We are making coffee for caffeine sensitive people. We do this by producing the world's first caffeine replacement, paraxanthine.

Rarebird is a Y Combinator company in the Summer 2020 batch. Its directory entry describes it as: Elevating mental health to be a part of your daily coffee ritual. The founder listed is Jeffrey Dietrich (Founder) (Y Combinator directory entry, August 22, 2020).

6 more companies from YC Summer 2020 ↓

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Rarebird

New accelerator entry · 2020-08-22 · the record

Summer 2020
batch
5
people
Early
stage
United States of America
region
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What the record says

BatchSummer 2020
Announced2020-08-22
StageEarly
StatusActive
Team size5
IndustryHealthcare
Sub-industryHealthcare -> Industrial Bio
RegionsUnited States of America, America / Canada
BasedSan Francisco, CA, USA; San Leandro, CA, USA
HiringNo
Sitehttp://www.rarebird.coffee
Previously known asRevel Technologies

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Also in YC Summer 2020

Same batch, Healthcare first.

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In their words

We are making coffee for caffeine sensitive people. We do this by producing the world's first caffeine replacement, paraxanthine. It's better than caffeine at waking you up and causes fewer side effects, like anxiety and jitteriness.

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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 Rarebird: verified, sourced, every claim cited, ready in a few minutes. See pricing.

What the Full Report on Rarebird covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

    1 cited source found

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Sourced from the company's Y Combinator directory entry.

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Rarebird: Accepted into Y Combinator Summer 2020
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Permanent URL: https://mentionfox.com/funding/yc-rarebird
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Rarebird (YC S20) — Elevating mental health to be a part of your daily coffee ritual. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-rarebird