# Brian Berger

> Brian Berger is the New York-based co-founder and CEO of Mack Weldon, the men’s essentials brand launched with Michael Isaacman in 2012. A former consumer internet executive at companies including Excite@Home, WebMD and Comcast, he built the brand around practical clothing improvements, consistent products and easier repeat purchases. His later interviews emphasize disciplined growth, wholesale distribution and the limits of engineering customer loyalty.

- **Role:** Co-founder and CEO at Mack Weldon
- **Organizations:** Mack Weldon, Breathe Bags, BDB Ventures, Comcast Interactive Media, WebMD, Excite@Home, Bridge Investments
- **Education:** BA in Political Science, University of Colorado Boulder, MBA, Columbia Business School
- **Known for:** Co-founded Mack Weldon and launched its men’s essentials business in 2012., Led the brand’s expansion from underwear, socks, T-shirts and undershirts into additional clothing categories., Led Mack Weldon as it passed one million units sold by August 2017.

## Career timeline

- **Before 2012** — Worked in consumer internet and media businesses including Excite@Home, WebMD and Comcast.
- **2001-2003** — Attended business school; worked on the Breathe yoga-bag venture during this period.
- **2007-2010** — Vice President, Strategy & Development at Comcast.
- **2011** — Founded BDB Ventures, according to his Crunchbase profile.
- **2012** — Launched Mack Weldon with Michael Isaacman in August.
- **2016** — Mack Weldon raised a $7 million Series B led by KarpReilly and expanded into polos.
- **2017** — By August, Mack Weldon had sold more than one million units and offered nearly 200 styles, according to Inc.
- **2019** — Mack Weldon opened its first physical store at Hudson Yards on March 15.
- **2026** — Discussed the case for earlier wholesale distribution and profitability discipline on Chord’s Brilliant Commerce podcast.

## Achievements

- Co-founded Mack Weldon and launched its men’s essentials business in 2012.
- Led the brand’s expansion from underwear, socks, T-shirts and undershirts into additional clothing categories.
- Led Mack Weldon as it passed one million units sold by August 2017.
- Opened Mack Weldon’s first physical store at Hudson Yards in 2019.

## Latest updates

- **2026-06** — On Chord’s Brilliant Commerce podcast, said he would have pursued wholesale earlier and discussed profitability, product-led loyalty and smaller teams.
- **2025-06** — Discussed Mack Weldon’s origin, product development, customer acquisition and AI on NRF’s Retail Gets Real.
- **2025-01** — Discussed longevity, wholesale priorities and the difficulty of relying on digital marketing on The Glossy Fashion Podcast.

## Links

- Website: https://mackweldon.com/
- LinkedIn: https://www.linkedin.com/in/brian-berger-7101aa
- Twitter/X: https://twitter.com/BBerger3
- Instagram: https://www.instagram.com/brianberger_/

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Profile page: https://yespress.io/brian-berger
Published by YesPress — https://yespress.io
Last updated: 2026-10-26