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Rainbow (YC S19) — Open-source, design centric software for interacting with blockchains

Rainbow appears in Y Combinator's company directory in the Summer 2019 batch, listed 2021-08-24. Open-source, design centric software for interacting with blockchains.

Rainbow is a Y Combinator company in the Summer 2019 batch. Its directory entry describes it as: Open-source, design centric software for interacting with blockchains. The founders listed are Christian Baroni (Founder), Jin Chung (Founder), Michael Demarais (Founder) (Y Combinator directory entry, August 24, 2021).

6 more companies from YC Summer 2019 ↓

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Rainbow

New accelerator entry · 2021-08-24 · the record

Summer 2019
batch
28
people
Early
stage
United States of America
region
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What the record says

BatchSummer 2019
Announced2021-08-24
StageEarly
StatusActive
Team size28
IndustryFintech
Sub-industryFintech -> Consumer Finance
SectorsDeFi, Crypto / Web3
RegionsUnited States of America, America / Canada, Remote, Partly Remote
BasedNew York City, NY
HiringNo
Sitehttps://rainbow.me
Founded2019
Previously known asRainbow 🌈

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Also in YC Summer 2019

Same batch, Fintech first.

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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

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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

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What the Full Report on Rainbow 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

    12 cited sources found

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Sourced from the company's Y Combinator directory entry, from the company's own site, read directly on 2026-09-27 (rainbow.me), from the public GitHub account that record links to (rainbow-me), and from Hacker News, where 1 thread met the matching rule stated beside the count.

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Rainbow: Accepted into Y Combinator Summer 2019
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Permanent URL: https://mentionfox.com/funding/yc-rainbow
Last updated 2026-10-29
Primary record: Y Combinator directory entry
Rainbow (YC S19) — Open-source, design centric software for interacting with blockchains. MentionFox, 2026-10-29. https://mentionfox.com/funding/yc-rainbow