Darius Sepassi Overview

  • Primary Position
  • Senior Managing...

  • Primary Industry
  • B2B

  • Active Board Seats
  • 1

  • Med. Deal Size

  • Med. Valuation

Darius Sepassi General Information

Biography

Mr. Darius Sepassi serves as Senior Managing Director, Private Equity Group at Blackstone. He served as Board Member at GridLiance Since joining Blackstone in 2016, he has been involved with the firm's investments in Cheniere Energy Partners, Ulterra Drilling Technologies, Onyx Renewables, and Transmission Developers, Inc. Prior to joining Blackstone, he was a Senior Vice President at Oaktree Capital where he evaluated and executed investment opportunities primarily in the power generation and midstream energy sectors. Prior to Oaktree, he was a Vice President at Highstar Capital. He has also held positions as an Associate at First Reserve Corporation, focusing on equity investments in the global energy sector, and as an Analyst, in the Leveraged Finance and Sponsor Coverage group at Bear, Stearns & Co. Inc. He received a BS, with distinction, in Accounting and an MS in Business Administration from the Pennsylvania State University. He serves as Board Member at Aypa Power, Star West Generation, GWF Energy, Ulterra, Onyx, and TDI-New England. He currently also serves as Board Observer at Linden Cogen.

Contact Information

Primary Position
Senior Managing Director, Private Equity Group, Blackstone
Education
Pennsylvania State University (Penn State), BS (Bachelor of Science)
Pennsylvania State University (Penn State), MS (Master of Science)
Gender
Male
Email
se
Phone
+1 (212)
Address
  • 345 Park Avenue
  • New York, NY 10154
  • United States
+1 (212)

Darius Sepassi Positions (1)

Firm name Firm type Title Location Industry Since
Blackstone Investor Senior Managing Director, Private Equity Group New York, NY PE/Buyout

Darius Sepassi Board Seats (1)

Company Industry Ownership Status Financing Status Location Since
Aypa Power Energy Storage Privately Held (backing) Private Equity-Backed Austin, TX

Darius Sepassi Lead Partner on Deals (6)

Darius Sepassi has been the lead partner on 6 deals. Their latest deal was with Westwood Professional Services, a construction and engineering company. The deal was made on 07-Aug-2024.

Company Deal Date Deal Type Deal Size Deal Status Industry Location
Westwood Professional Services 07-Aug-2024 Buyout/LBO Completed Construction and Engineering Plano, TX
Gradient (Boston) 01-Feb-2024 Completed Consulting Services (B2B) Boston, MA
Aspect Consulting (Bainbridge Island) 05-Jun-2023 Completed Environmental Services (B2B) Bainbridge Island, WA
Geoscience Earth and Marine Services 20-Feb-2023 Completed Energy Exploration Houston, TX
Red Earth Engineering 09-Dec-2022 Buyout/LBO Completed Construction and Engineering Carina, Australia
Geosyntec Consultants 10-May-2022 Buyout/LBO Completed Construction and Engineering Boca Raton, FL

Darius Sepassi Network (70)

Board Members (13)

Name Company Representing Location From
Terry Boston GridLiance GP Self Irving, TX
Sean Klimczak GridLiance GP Blackstone Irving, TX
Aypa Power Self Austin, TX
GridLiance GP GridLiance GP Irving, TX
Aypa Power Self Austin, TX

Portfolio Executives (42)

Name Company Role Deal date Location
Steve Windingland Westwood Professional Services Vice President, Wind Energy 07-Aug-2024 Plano, TX
Joanna Vossen JD Westwood Professional Services Co-Owner, Vice President and General Counsel 07-Aug-2024 Plano, TX
Westwood Professional Services Director of Business Development 07-Aug-2024 Plano, TX
Westwood Professional Services President, Chairman and Chief Executive Officer 07-Aug-2024 Plano, TX
Westwood Professional Services Senior Vice President, Renewables Division 07-Aug-2024 Plano, TX

Fund Team Members (15)

Name Investor Fund Fund Location
Andrew Dowler Blackstone Blackstone Energy Partners I New York, NY
John-Paul Munfa Blackstone Blackstone Energy Partners I New York, NY
Blackstone New York, NY
Blackstone New York, NY
Blackstone New York, NY

Darius Sepassi Affiliated Funds (3)

Fund Investor Fund Type Status Vintage Size Dry Powder IRR IRR Quartile
Blackstone Energy Partners I Blackstone Oil/Gas Fully Invested 2011
Blackstone Energy Partners II Blackstone Oil/Gas Fully Invested 2015
Blackstone Energy Partners III Blackstone Diversified Private Equity Fully Invested 2020

Darius Sepassi FAQs

  • Who is Darius Sepassi?

    Mr. Darius Sepassi serves as Senior Managing Director, Private Equity Group at Blackstone.

  • How much does Darius Sepassi typically invest?

    Darius Sepassi's median deal size is .

  • What is Darius Sepassi’s main position?

    Darius Sepassi’s primary position is Senior Managing Director, Private Equity Group.

  • What are the contact details for Darius Sepassi?

    Darius Sepassi’s email address is se and his phone number is +1 (212) .

  • How many active board seats does Darius Sepassi hold?

    Darius Sepassi holds a board seat in Aypa Power.

Data Transparency

  • Meet our data hygiene team

    Discover how our experts ensure you’re getting the most accurate financial data in the industry.

    Read blog »
  • How PitchBook sources data

    Our data operations team has logged over 3.5 million hours researching, organizing, and integrating the information you need most.

    Discover our process »