First Reserve

Q: When was First Reserve last fund created?

First Reserve last fund was created/launched in 2022-01-12.

General contacts

Investor type

Founded

1983

AUM

$34 M

Location

Houston, Texas, United States

Investment Ticket

$10-50 m

Investment Stage

Series B Late Stage (Series C+)

Region of investment

Europe North America Africa Asia Australia and others

Investor profile last updated: 16 August, 2026

Profile

First Reserve is a private equity firm based in Stamford, Connecticut, founded in 1983. The firm specializes in investments across the energy, utility, and industrial sectors, leveraging over 40 years of industry experience. With a team of over 20 investment professionals, First Reserve is known for its extensive network and sector expertise, which it uses to partner with management teams to drive transformational growth.

The firm focuses on Infrastructure Solutions, Value-Added Infrastructure, and Resources strategies, investing in both traditional and transitional energy solutions. First Reserve typically engages in buyout and growth/expansion investments, with a history of raising over $34 billion in capital. The firm operates globally, with a significant presence in North America and Europe.

Notable investments include Trillium Flow Technologies - industrial flow control solutions, Venterra Group Plc - offshore wind services, Vitesse Energy - oil and gas exploration, WGI - construction and engineering services, and Ascent Resources - natural gas exploration. These investments highlight First Reserve's commitment to advancing the evolving energy economy.

Industry

Financial Services Fintech Food and Beverage Foodtech Industrial Utilities Infrastructure Energy Real Estate Telecommunications

First Reserve Funds

Name	Type	Industry	Stage	Region	Size	AUM	Launch date
First Reserve Refuel Fund	Private Equity (PE)	Financial Services Fintech Food and Beverage Foodtech Real Estate Telecommunications Energy	Series B Late Stage (Series C+)	North America	$5-10 m	$511 M	January 2022

Contacts

Name

Title

Social Networks

Alex T. Krueger Chairman and Managing Partner

Chairman and Managing Partner

a•••@•••

Ryan Nicholson Vice President

Vice President

r•••@•••

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Investment-team contacts for First Reserve — including verified work emails and LinkedIn profiles — are available to Private Equity List subscribers.
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Contacts sourced from the firm's website and LinkedIn, re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.

FAQs about First Reserve

Is First Reserve a venture capital or private equity firm?

First Reserve is a private equity firm. It backs companies at Series B and Late Stage (Series C+), writing tickets of $10-50 m.

Where is First Reserve located?

First Reserve is located in Houston, Texas, United States.

When was First Reserve founded?

First Reserve was founded in 1983.

What sectors and industries does First Reserve invest in?

First Reserve invests in companies and startups in Financial Services, Fintech, Food and Beverage, Foodtech, Industrial, Utilities, Infrastructure, Energy, Real Estate, Telecommunications.

What is First Reserve geographical focus of investments?

First Reserve invests in companies and startups in Europe, North America, Africa, Asia, Australia and others.

At what stages of companies and startups does First Reserve typically invest in?

First Reserve invests in companies and startups at Series B, Late Stage (Series C+).

What is the usual amount of First Reserve investment?

First Reserve usually invests $10-50 m on average.

What is the amount of assets of under management (AUM) for First Reserve?

First Reserve has around $34m assets under management.

When was First Reserve last fund created?

First Reserve last fund was created/launched in 2022-01-12

What are the contacts of First Reserve?

First Reserve can be reached through its website firstreserve.com, its LinkedIn page and its X account. Its general enquiries address is [email protected]. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for First Reserve — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.

Can I access First Reserve data via API or MCP?

Yes. Every field on this page — profile, funds, investment criteria, portfolio and investment-team contacts — is available programmatically through the Private Equity List REST API and MCP server, so AI assistants such as Claude and ChatGPT can query First Reserve directly instead of scraping this page. One subscription covers both the web app and machine access — see API & MCP.

When was the First Reserve profile last updated?

Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 16 August, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.