What is First Reserve's NAICS code?

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

Insights

Private Equity Focus First Reserve is a global private equity firm specializing in energy, utility, and industrial markets with a track record of over 750 transactions and raised capital exceeding $34 billion, representing a strong platform for selling value-add services, performance analytics, and deal-support capabilities to optimize portfolio investments.

Operational Expertise The firm emphasizes operational expertise across platforms and add-ons, suggesting opportunities to offer specialized due diligence, asset optimization, measurement, and automation solutions that align with energy infrastructure and industrial assets in their portfolio.

Technology Stack Current tech usage includes WordPress, Adobe Experience Cloud, cloud platforms (Google Cloud, Microsoft Azure), and analytics tags, indicating receptiveness to marketing automation, data integration, and cloud-based optimization tools that can enhance investor relations and portfolio companies.

Growth Moves Recent investments and exits (growth investments in Lindsey Systems, acquisitions like Wantman Group, and strategic asset sales to Blackstone) point to a dynamic deal flow; this signals opportunities to offer deal sourcing tech, data rooms, ERP/ops software, and integration services to accelerate valuations.

Fundraising & IR Appointment of a Director of Capital Formation and Investor Relations and a solid fundraising profile suggest sales opportunities around investor relations platforms, CRM, reporting, and communications solutions that streamline capital formation and stakeholder engagement.

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First Reserve Tech Stack

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

WordPress
Content Management System
Adobe Experience Cloud
Data Management Platforms
Shopify
E-commerce
Microsoft 365
Email
Google Cloud
Infrastructure As A Service
Microsoft Azure
Platform As A Service
WP Engine
Platform As A Service
Google Tag Manager
Tag Management

Media & News

First Reserve's Email Address Formats

First Reserve uses at least 4 email formats:

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

What is First Reserve's SIC code and NAICS code?

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

How many employees does First Reserve have currently?

As of August 2026, First Reserve has approximately 72 employees across 2 continents, including North America and Europe. Key team members include Owner: C. S., Interim Chief Financial Officer Chief Accounting Officer And Senior Vice President: S. D. and 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 WordPress, Adobe Experience Cloud, Shopify, Microsoft 365, Google Cloud, Microsoft Azure, WP Engine and Google Tag Manager.

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.