# Steven Eidelman

> Steven Eidelman is the Los Angeles-based co-founder and CEO of Modern Animal and previously co-founded Whistle, where he served as COO. A University of Pennsylvania political science graduate, he worked at Bain & Company, Warner Music Group, and Spectrum Equity before founding companies. Whistle was acquired by Mars Petcare in 2016; Chewy completed its $400 million acquisition of Modern Animal in May 2026.

- **Role:** Co-founder and CEO at Modern Animal
- **Organizations:** Modern Animal, Whistle, Mars Petcare, Spectrum Equity, Bain & Company, Warner Music Group, Emancipet, Founders Pledge
- **Nationality:** American
- **Education:** BA in Political Science; summa cum laude, University of Pennsylvania
- **Known for:** Co-founded Whistle and served as COO before its 2016 acquisition by Mars Petcare., Built Modern Animal from a 2018 founding to 29 owned clinics and more than 100,000 member families at the April 2026 acquisition announcement., Led Modern Animal through its $400 million acquisition by Chewy, completed May 21, 2026.

## Career timeline

- **2007** — Graduated from the University of Pennsylvania and began his consulting career at Bain & Company.
- **Before 2012** — Worked in online strategy at Warner Music Group and in consumer internet investing at Spectrum Equity.
- **2012** — Co-founded Whistle with Ben Jacobs and Kevin Lloyd; served as COO.
- **2014** — Recognized on Forbes 30 Under 30 in Consumer Technology.
- **2016** — Mars Petcare acquired Whistle; Eidelman subsequently worked on innovation at Mars.
- **2018-12** — Founded Modern Animal in Los Angeles.
- **2019-10** — Modern Animal announced $13.5 million in seed financing ahead of its first location.
- **2020-04** — Modern Animal opened its first Los Angeles clinic on April 6.
- **2021-07** — Modern Animal announced $75.5 million in new funding, comprising a $35.5 million Series A and $40 million Series B.
- **2022** — Announced Modern Animal’s fifth clinic, in San Francisco’s NoPa neighborhood.
- **2023-05** — Became a board member of Emancipet, according to his LinkedIn profile.
- **2026-04** — Chewy announced its agreement to acquire Modern Animal; Eidelman said he would remain CEO.
- **2026-05** — Chewy completed the acquisition on May 21 for $400 million.

## Achievements

- Co-founded Whistle and served as COO before its 2016 acquisition by Mars Petcare.
- Built Modern Animal from a 2018 founding to 29 owned clinics and more than 100,000 member families at the April 2026 acquisition announcement.
- Led Modern Animal through its $400 million acquisition by Chewy, completed May 21, 2026.
- Named to Forbes 30 Under 30 in Consumer Technology in 2014.

## Latest updates

- **2026-05** — Chewy completed its $400 million acquisition of Modern Animal on May 21.
- **2026-04** — At the acquisition announcement, Eidelman said he would remain Modern Animal’s CEO alongside its continuing operating leadership.

## Links

- Website: https://www.modernanimal.com/
- LinkedIn: https://www.linkedin.com/in/steveneidelman
- Twitter/X: https://x.com/steveneidelman

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Profile page: https://yespress.io/steven-eidelman
Published by YesPress — https://yespress.io
Last updated: 2026-10-27