United States · 
Who invested in SemGroup Corporation?
SemGroup Corporation's investors include The Carlyle Group and Riverstone Holdings.
United States · Venture startup
Who invested in SemGroup Corporation
One round we have observed, with the 2 investors named in it. 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
$75Mraised across 1 round since 2004, from 1 source
- Latest round
- Venture, $75MDec 2004
- Investors
- 2
The rounds
- Dec 2004
Everyone who backed them
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Quick answers about SemGroup Corporation
How much has SemGroup Corporation raised?
SemGroup Corporation has raised $75M across 1 round since 2004.
When did SemGroup Corporation last raise?
SemGroup Corporation's most recent round was a Venture of $75M in Dec 2004.
What was SemGroup Corporation's biggest round?
Its most recent round, $75M in Dec 2004, is also its largest on record.
Who backed SemGroup Corporation first?
SemGroup Corporation's first round on record, in Dec 2004, was backed by The Carlyle Group and Riverstone Holdings.
What stage is SemGroup Corporation at?
SemGroup Corporation's latest named round is a Venture, in Dec 2004.
Where is SemGroup Corporation based?
SemGroup Corporation is based in the United States.
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