Garrett Gilbertson

About Garrett Gilbertson

Garrett Gilbertson founded SUM Ventures, an early-stage venture firm, and is its managing partner. He is also chairman of the Band of Angels Los Angeles. SUM's portfolio pages list him as a director of BRIUS Technologies, ClearClub (BruxA) and Skidattl, and as a board member of UNest. SUM Ventures took part in BRIUS's Series B in 2025.

He is a former U.S. Air Force captain and a veteran of the war in Afghanistan.

Experience

This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name Garrett Gilbertson in the role, so the role may have started earlier or lasted longer.

SV

SUM Ventures Current

Managing Partner

Founder

BA

Band of Angels Los Angeles Current

Chairman

BRIUS Technologies, Inc.

Director

2023 – 2026 · Addison, TX

Makes Brava, braces fixed behind the teeth that move each tooth on its own programmed path, for teens and adults.

B

BruxA, Inc.

Director

2023 · Inglewood, CA

UF

United States Air Force

Captain

UM

UNest (board member)

Board member

CD

ClearClub, operated by BruxA, Inc. (director)

Board member

SD

Skidattl (director)

Board member

Key Colleagues at Startups

The people Garrett Gilbertson works with at each company, as listed on that company's latest Form D.

BRIUS Technologies, Inc. · Form D, Jul 23, 2026

Lea Ellermeier

Chief Executive Officer and director

Kate Garrett

Director

CR

Cindy Roark

Director

Amir Abolfathi

Director

Garrett Gilbertson in the News

• Jul 7, 2025·Fantasy LifeMatthew Berry's Fantasy Life closes $7 million seed round led by LRMR Ventures and SC Holdings; unveils new platform and Guillotine Leagues
• Nov 11, 2022·NewswirePurlin Raises Seed Preferred Equity Round to Support Growth of Business
• Nov 3, 2021·FinovateUNest Forges Strategic Partnership with Avibra to Bring Insurance Benefits to Families

Sources

1. SECBRIUS Technologies, Inc. Form D, filed Jul 23, 2026
2. SECBruxA, Inc. Form D, filed Jul 13, 2023
3. Investor siteBrius portfolio page on sum.vc (board: Garrett Gilbertson, Director)
4. Investor siteUNest portfolio page on sum.vc (board member)
5. Investor siteClearClub portfolio page on sum.vc (director)
6. Investor siteSkidattl portfolio page on sum.vc (director)
7. Company siteClearClub terms: sales are made by BruxA, Inc.
8. Company siteUNest: website operated by UNest Holdings, Inc.
9. Company press releaseBRIUS Series B release, May 6, 2025 (SUM Ventures named as an investor)