United States · Series D startup
5 rounds we have observed, with the 9 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Funding summaryUpdated 26 Oct 2026
$181Mraised across 5 rounds since 2008, from 5 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Venrock
U.S. Venture Partners
Morgan Stanley Investment Management
Oak Investment Partners
T. Rowe Price
Wellcome Trust
Maverick Capital
ESO FundReported by techcrunch.comSEC filing: $100M sold, first sale Apr 2012
VenrockU.S. Venture PartnersMorgan Stanley Investment ManagementOak Investment PartnersWellcome TrustMaverick Capital
Cleveland ClinicReported by freshnews.comSEC filing: $60M sold, first sale Jun 2010
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
VenrockU.S. Venture PartnersMorgan Stanley Investment ManagementOak Investment PartnersWellcome TrustMaverick CapitalT. Rowe PriceESO FundCleveland ClinicMissing a round, or an investor who was in one? Tell us.
Castlight Health's investors include Venrock, U.S. Venture Partners, Morgan Stanley Investment Management, Oak Investment Partners and Wellcome Trust, and 4 more on record.
Castlight Health has raised $181M across 5 rounds since 2008.
Castlight Health's most recent round was a Series D of $100M in May 2012.
Its most recent round, $100M in May 2012, is also its largest on record.
Castlight Health's first round on record, in Apr 2008, was backed by Venrock.
Castlight Health's latest named round is a Series D, in May 2012.
Castlight Health is based in the United States.
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United States ·