
Los Angeles venture capital firm backing technology and healthcare startups run by founders

Private investment firm with a family office background, active in growth equity, real estate and fund seeding

Declaration Partners is a private investment firm that grew out of a family office. It is anchored by David M. Rubenstein, described as a private equity veteran and philanthropist, who is also its largest investor.
The firm says it looks for entrepreneurs, operators and investors who want to create value over the long term, and that it prefers partnerships where interests are closely aligned.
Founders, family owners, management teams and co-investors.
Summary written by TrustList from the business's own published information, Oct 2026.
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Declaration Partners is ranked on 2 TrustList rankings: #12 on 1 and #36 on 1.
Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Declaration Partners has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.
It is the only one of the 32 here listing series c and one of 2 here listing engineering.
Of the 32 here, 6 also cover healthtech and 5 also cover seed stage; 11 also work in Silicon Valley and 10 also work in New York City.
Behind Clocktower Technology Ventures, ahead of Evercore Partners.
It is the only one of the top 65 here listing logistics and one of 6 here listing partnership.
Of the top 65 here, 13 also cover partners and 8 also cover series a; 19 also work in San Francisco and 17 also work in London.
Behind Decasonics, ahead of DNS Capital.
As of 2026-10-31. Organic ranks only; sponsored placements are never ranks. How TrustList ranks
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