What is First Reserve's NAICS code?

First Reserve's NAICS code is 5239 (Other Financial Investment Activities).

Insights

Strategic Sourcing First Reserve operates as a global private equity firm in energy, utility, and industrial markets with a deep network across six continents, signaling ample proprietary deal flow and collaboration opportunities for advisory and partnership services.

Capital Formation With over $34 billion raised and a leadership role in capital deployment, there are potential selling and fundraising collaborations, including investor relations support and co-investment outreach capabilities.

Recent Exits Active buy and sell activity, including a recent asset sale to Blackstone, indicates a dynamic portfolio strategy and opportunities to offer exit planning, valuation services, and secondary market advisory.

Growth Targets Recent growth investments and acquisitions such as Lindsey Systems and Wantman Group suggest readiness for strategic minority or growth equity deals, as well as infrastructure and measurement technology investments.

Technology & Ops Relied tech stack and operational execution across energy infrastructure create openings for digital modernization, portfolio optimization, and data analytics services to enhance performance across holdings.

Similar companies to First Reserve

First Reserve Tech Stack

First Reserve uses 8 technology products and services including html5media, jQuery CDN, Adobe Experience Cloud, and more. Explore First Reserve's tech stack below.

html5media
Audio, Video, Graphics
jQuery CDN
Content Delivery Network
Adobe Experience Cloud
Data Management Platforms
Google Fonts API
Font Scripts
Google Maps
Maps
Microsoft Azure
Platform As A Service
reCAPTCHA
Security
Bootstrap
UI Frameworks

Media & News

First Reserve's Email Address Formats

First Reserve uses at least 1 format(s):

First Reserve Email Formats	Example	Percentage
FLast@firstreserve.com	JDoe@firstreserve.com	79%
First.Last@firstreserve.com	John.Doe@firstreserve.com	18%
Last@firstreserve.com	Doe@firstreserve.com	2%
FirstLast@firstreserve.com	JohnDoe@firstreserve.com	1%

Frequently Asked Questions

What is First Reserve's phone number?

You can contact First Reserve's main corporate office by phone at

+1-203-661-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is First Reserve's stock symbol?

First Reserve is a publicly traded company; the company's stock symbol is FRSG.

What is First Reserve's official website and social media links?

First Reserve's official website is firstreserve.com and has social profiles on LinkedIn.

How much revenue does First Reserve generate?

As of July 2026, First Reserve's annual revenue is estimated to be $100M - $250M.

What is First Reserve's SIC code NAICS code?

First Reserve's SIC code is 6371 - Pension, Health, and Welfare Funds NAICS code is 5239 - Other Financial Investment Activities.

How many employees does First Reserve have currently?

As of July 2026, First Reserve has approximately 72 employees across 2 continents, including North AmericaEurope. Key team members include Owner: C. S.Interim Chief Financial Officer Chief Accounting Officer And Senior Vice President: S. D.Founding Partner: S. R.. Explore First Reserve's employee directory with LeadIQ.

What industry does First Reserve belong to?

First Reserve operates in the Investment Management industry.

What technology does First Reserve use?

First Reserve's tech stack includes html5mediajQuery CDNAdobe Experience CloudGoogle Fonts APIGoogle MapsMicrosoft AzurereCAPTCHABootstrap.

What is First Reserve's email format?

First Reserve's email format typically follows the pattern of FLast@firstreserve.com. Find more First Reserve email formats with LeadIQ.

When was First Reserve founded?

First Reserve was founded in 1983.

First Reserve

Q: What is First Reserve's official website and social media links?

First Reserve's official website is firstreserve.com. First Reserve has social profiles on LinkedIn.

Q: How many employees does First Reserve have currently?

First Reserve has approximately 72 employees.

Q: What technology does First Reserve use?

First Reserve's tech stack includes AOS, Site Kit, Google Analytics, MySQL, Windows Server.

Investment ManagementConnecticut, United States51-200 Employees

First Reserve is a global private equity firm focused on the energy, utility, and industrial sectors. Founded in 1983 and based in Stamford, Connecticut, it operates with a broad international footprint that spans six continents. The firm pursues a long history of capital deployment through platform investments and add-on acquisitions across varied markets.

Its strategy relies on a robust network of relationships in its target markets to support proprietary sourcing and thorough evaluation of opportunities, and to enhance the performance of its portfolio. Additionally, in December 2025 the firm appointed Caroline Theodoridis as Director of Capital Formation and Investor Relations.