When was Diamond Castle founded?

Diamond Castle was founded in 2004.

Where is Diamond Castle's headquarters located?

Diamond Castle's headquarters is located in New York City (United States).

How many companies has Diamond Castle invested in?

Diamond Castle has invested in 7 companies, including Multi-Color & ProDirectional.

Which companies has Diamond Castle invested in lately?

ProDirectional & KDC Solar are the latest investments by Diamond Castle.

Diamond Castle - 2026 Investor Profile, Portfolio & Exits

Diamond Castle is a private equity firm founded in 2004. It is primarily based in New York City, United States. As of Apr 2026, Diamond Castle has a portfolio of 7 companies, comprising 7 funding rounds and 5 acquisitions. The firm primarily invests in companies based in United States. Its portfolio is spread across a wide range of sectors from Energy to Environment. Its latest investment was a $***** Series A round in ProDirectional on Dec 06, 2010

Overall Diamond Castle portfolio has seen 4 acquisitions, namely Multi-Color, KDC Solar and Beacon Health Options.

Key Metrics

Founded Year

2004

Location

New York City, United States

Portfolio Companies

Multi-Color, ProDirectional & 5 more

Portfolio Sectors

Energy, Environment

Portfolio Locations

United States

Acquisition Deals

Suture Express, York Label & 3 more

Investment Deals

Multi-Color, ProDirectional & 5 more

View Diamond Castle's full profile

Diamond Castle has a portfolio of 7 companies. They have invested in a total of 7 companies. Their most recent investment was in ProDirectional (Series A round) on Dec 06, 2010. Here are the most recent investments by Diamond Castle:

Date	Company	Round	Amount	Co-Investors
Dec 06, 2010	ProDirectional	Series A	4256	-
Jun 07, 2010	KDC Solar	PE	4122	-
Mar 21, 2007	Catamount Energy Corporation	PE	5012	-

View all investments by Diamond Castle

Diamond Castle has acquired 5 companies. Their most recent acquisition was of Suture Express on Jan 29, 2010. Here are the most recent acquisitions by Diamond Castle:

Acquisition Date	Company	Short Description	Total Funding	Founded Year
Jan 29, 2010	Suture Express	Online betting and casino platform with diverse games and sports options	-	1998
Aug 26, 2011	York Label	Developer of a municipal app for citizen engagement and communication	-	1997
Apr 17, 2013	Managed Health Care Associates	Healthcare provider marketplace for group purchasing	-	1989
Feb 18, 2007	PSE Intl	Provider of pipeline cleaning and drying services	-	2005