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Weilos (YC S13) — Weight loss coaching

Weilos is a safe community for people to share their fitness updates to inspire others and receive support. Users view real body transformations and healthy photo updates from other dieters on a streaming newsfeed.

Weilos is a Y Combinator company in the Summer 2013 batch. Its directory entry describes it as: Weight loss coaching. The founder listed is Ray Wu (Founder) (Y Combinator directory entry, May 2, 2013).

6 more companies from YC Summer 2013 ↓

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Weilos

New accelerator entry · 2013-05-02 · the record

Summer 2013
batch
11
people
Early
stage
United States of America
region
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What the record says

BatchSummer 2013
Announced2013-05-02
StageEarly
StatusAcquired
Team size11
IndustryHealthcare
Sub-industryHealthcare -> Consumer Health and Wellness
SectorsFitness, Health & Wellness
RegionsUnited States of America, America / Canada
BasedSan Francisco, CA, USA
HiringNo
Sitehttp://weilos.com

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Also in YC Summer 2013

Same batch, Healthcare first.

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In their words

Weilos is a safe community for people to share their fitness updates to inspire others and receive support. Users view real body transformations and healthy photo updates from other dieters on a streaming newsfeed. They can then post themselves to receive support and tips from other like minded people. The app also has a special camera tool so users can take perfectly lined up progress photos to visualize their smallest improvements.

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Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

A Full Report on Weilos: verified, sourced, every claim cited, ready in a few minutes. See pricing.

What the Full Report on Weilos 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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Weilos: Accepted into Y Combinator Summer 2013
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Permanent URL: https://mentionfox.com/funding/yc-weilos
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Weilos (YC S13) — Weight loss coaching. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-weilos