Investor profile
Langdon M.
Private equity, Venture debt & Managing Director at Siguler Guff & Company
Langdon M. works as a Managing Director at Siguler Guff & Company. The firm's known portfolio counts 12 companies.
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Investment focus
- Stage
- GrowthLate-StageSeed
Contacts
Affiliated funds' portfolios
Managing Director at Siguler Guff & Company, whose known portfolio counts 12 companies
- Buckle
- VerSe Innovation
- La Renon
- Cognitus Consulting
- PicsArt
- Spandana Sphoorty Financial Limited
- Guide Architecture
- Surge Investment Group
- Relisys
- Ritz-Carlton Savannah Development
- Valliance
- Verzani & Sandrini
Investor Profile
Founders in the listed sectors AI, Commerce, Consumer and FinTech, and focus areas Analytics, Asset Management, Cleaning and Content fall inside that listing.
Siguler Guff & Company appears in Growth, Late-Stage and Seed rounds across its known deals.
The firm portfolio and the focus above give founders context on whether Langdon M. matches their raise.
Colleagues at Siguler Guff & Company
Prabhas Panigrahi
Managing Director
New York, United States
Alexander Lupachev
Investor
Dubai, United Arab Emirates
Kevin Kester
Managing Director
Boston, United States
Sean R. MacDonald
Partner
Boston, United States
Cesar Collier
Managing Partner Latin America
São Paulo, Brazil
Meghan Conaty
Principal
New York, United States
Gene Williams
Vice President
New York, United States
Trey Meyer
Principal
Boston, United States
Jordan Greenberg
Investor
Houston, United States
Michael Stovall
Vice President
Boston, United States
Clifford Yonce
Managing Director
Greenwich, United States
Jason Mundt
Managing Director
Boston, United States
Sean Greene
Investor
Washington, United States
Mark Denomme
Managing Director
Boston, United States
Roman Simonov
Managing Director
United States
Charles Robinson
Investor
London, United Kingdom
Kenneth Kan
Family Office Investor
Hong Kong
Adam Domanico
Principal - Real Estate Investments
New York, United States
Justin Eskind
Investor
London, United Kingdom
Jordan DiTommaso
Vice President
Boston, United States
Frequently asked questions
Who is Langdon M.?
Langdon M. is a private equity investor and venture debt investor based in Boston, Massachusetts, United States, listed as Managing Director at Siguler Guff & Company. The known portfolio of that firm counts 12 companies. That portfolio belongs to the firm, not to Langdon M. personally.
What does Langdon M. invest in?
Listed sectors include AI, Commerce, Consumer and FinTech; listed focus areas include Analytics, Asset Management, Cleaning and Content. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Langdon M. invest at?
Siguler Guff & Company appears in Growth, Late-Stage and Seed rounds across its known deals, and Langdon M. is listed there as Managing Director. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Langdon M. listed at?
Langdon M. is listed as Managing Director at Siguler Guff & Company. 20 other people in the database share a firm with Langdon M.
How do I contact Langdon M.?
An email address, a phone number and a LinkedIn page are on file for Langdon M. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal