Top Oil & Gas Equipment & Services Private Equity Funds with Recent Private M&A Activity

Active Firms

4,401

TTM Deal Inquiries

$4M-$21M

Core Revenue Range

$1M-$4M

Core EBITDA Range

Top States by Activity

Florida 14%

California 11%

Texas 10%

New York 7%

Pennsylvania 4%

Key Attributes

Focus: Control Investments | Capital Source: Committed Capital | Operating Approach: Scale & Exit

Mangrove Equity Partners

27 Total Closed Deals Actively Sourcing Deals

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Mangrove Equity Partners' founding principals enjoy a national reputation as uncommonly effective, fair, flexible and honorable partners to company owners and managers. We have the captive financial resources (including bridge capabilities) and deal experience to efficiently close transactions. We also have substantial operating experience and a collaborative approach to building value at the companies with whom we partner. Mangrove's three person internal operating team affords our fund the ability to help owner/operators maximize the value of their retained ownership, and allows Mangrove to…

Recent Transactions

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Oct 2022 Invested in Atlas Greenhouse
Feb 2022 Acquired STCR
Dec 2021 Invested in Vintage Air
Jan 2021 Invested in Seaside Waste Services

Halifax Group

25 Total Closed Deals Actively Sourcing Deals

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The Halifax Group is a private investment firm dedicated to partnering with founders and managers of lower middle-market businesses with total enterprise values generally between $50 million and $300 million.

Recent Transactions

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Nov 2019 Acquired AAMP
Sep 2019 Acquired Prairie Industries
Jun 2019 Acquired StrataTech
Apr 2018 Acquired ChanceLight

Harren Equity Partners

24 Total Closed Deals Actively Sourcing Deals

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Harren Equity Partners is a Charlottesville, Virginia and Fort Lauderdale, Florida based private investment firmand leading provider of equity for middle market acquisitions, recapitalizations and growth capital financings. Harren professionals work with each portfolio company to develop and/or implement a strategic business plan, and we support management by providing the operational, financial and human resources necessary to manage the increasingly complicated decisions associated with growing a business. Harren's approach to private investment is significantly differentiated from the…

Recent Transactions

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Apr 2022 Acquired Core States Group
Jan 2022 Acquired A & A Transfer
Aug 2021 Invested in Health Connect America
Jun 2021 Acquired Alliance Ground International

Kainos Capital

22 Total Closed Deals Actively Sourcing Deals

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Kainos Capital, a middle market private equity firm focused on the food and consumer sector, was recently formed by Andrew Rosen, Robert Sperry and Sarah Ashmore Bradley. The Kainos Partners have invested and collaborated together in the food and consumer space over the past 20 years and their deep industry knowledge is complimented by an experienced team of investment professionals.The Kainos Team has extensive investment and operating experience in the industry, having invested more than $2 billion of equity in more than 52 transactions in the food and consumer sector with a total…

Recent Transactions

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Aug 2023 Acquired Good2Grow
Feb 2023 Invested in CellCore
Jan 2023 Acquired Evriholder
Aug 2021 Acquired Muenster Milling Company

GreyLion

19 Total Closed Deals Actively Sourcing Deals

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GreyLion focuses on investing in high-growth businesses in the lower middle market. We seek to partner with existing owners and management teams across the Industrial, Healthcare, Software and Services sectors to deliver capital in tailored and flexible minority and control structures. GreyLion invests $25-$125 million of capital per investment, primarily within the United States. We currently manage private equity funds with aggregate commitments of $1.9 billion.

Recent Transactions

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Jul 2024 Acquired Birdseye Security
Aug 2022 Acquired 360 Training
Aug 2022 Acquired Trifecta Collective
Aug 2021 Acquired Norwood Sawmills

Altus Capital Partners

18 Total Closed Deals Actively Sourcing Deals

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Altus Capital Partners is a private equity firm that makes control investments in middle market manufacturing businesses. We believe that our exclusive focus on manufacturing provides us with a unique understanding of the opportunities and challenges faced by companies in the sector. We utilize a patient, thoughtful investment approach and seek to partner with the management teams of our operating companies to achieve growth.The Altus investment team has experience in all phases of making and managing investments in middle market manufacturing companies. The firm’s partners have worked…

Recent Transactions

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Mar 2022 Acquired Winsert
Mar 2021 Acquired Thomson Plastics
Mar 2019 Acquired Thermal Solutions Manufacturing
Feb 2017 Acquired MAX Environmental Technologies, Inc.

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Hamilton Robinson Capital Partners

18 Total Closed Deals Actively Sourcing Deals

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We acquire companies that have a dominant position in their niche sub-sectors of B2B services, distribution, highly engineered manufacturing, and industrial/operational technology. We focus on companies or corporate carve-outs based in the US or Canada.We target companies that benefit from many of the leading trends impacting industrial markets including productivity enhancing technology solutions, factory automation, robotics, the Industrial Internet of Things (IIOT), advanced manufacturing and the increasing importance of B2B services.

Recent Transactions

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Dec 2022 Acquired Sani-Matic
Dec 2021 Acquired WorkforceQA
Dec 2021 Acquired Signal Control Products
Mar 2021 Acquired Zone 4

Charter Oak Equity

15 Total Closed Deals Actively Sourcing Deals

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Charter Oak Equity and its predecessor funds have invested in private equity since 1992. We focus on niche manufacturing, packaging, medical products & services, specialty chemicals, consumer products and financial services companies ranging in size from start up to $150 million enterprise value. To date, over $500 million in control-oriented capital has been invested in 30 portfolio companies through over 50 acquisitions.The general partners average over 10 years of private equity experience having previously worked together at Charter Oak Capital Partners. Prior to joining Charter Oak,…

Recent Transactions

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Aug 2023 Invested in EiKO Global LLC
Aug 2023 Invested in Metal Powder Products LLC
Aug 2023 Invested in LicaFlex Packaging
Aug 2023 Invested in Revere Industries LLC

Hadley Capital

15 Total Closed Deals Actively Sourcing Deals

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We work with founders/owners, families and management teams in need of ownership transition, management succession, and / or growth support. We primarily focus on companies with revenue between $5 million and $80 million, and a cash flow between $1 million and $10 million. We consider a wide range of industries and look for companies with potential to build on past successes and open to new ideas.

Recent Transactions

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Sep 2014 Acquired Brushy Mountain Bee Farm
Sep 2013 Acquired Centare
Dec 2012 Acquired Bluff Manufacturing
Sep 2012 Acquired W.C. Rouse

Third Century Management, LLC

14 Total Closed Deals Actively Sourcing Deals

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Third Century Investment Associates, LP ("TCIA") manages private equity capital for significant investments in small businesses. We invest actively in partnership with operating companies and carefully selected management teams located in the United States. Our team targets proven businesses in specialized sectors where we work to become advantaged investors through existing or acquired expertise. We are a disciplined, process-driven partnership, focused on long-term fundamentals. Our mission is to build sustainable business value, earn a superior return and develop a best-in-class reputation…

Recent Transactions

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Apr 2026 Acquired Mobile IV Medics
Sep 2025 Acquired BlackJet Marketing
Jul 2025 Acquired Local Web Leads
Oct 2024 Acquired Mobile RN Management

Warren Equity Partners

13 Total Closed Deals Actively Sourcing Deals

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Warren Equity Partners ("WEP") is a private equity firm that invests in small and middle market operating companies primarily in North America. WEP invests in established companies where additional capital and operating resources can accelerate growth. We are primarily targeting products and services companies in the infrastructure, industrial, and building sectors. WEP invests in the form of buyouts, growth equity, and recapitalizations. We are value-added investors with a strong emphasis on partnering with seasoned managers and operating executives. Importantly, we seek to generate return…

Recent Transactions

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Apr 2021 Acquired ADB Companies
Apr 2021 Acquired Magnolia River
Nov 2020 Acquired Integrated Facility Solutions
Oct 2020 Acquired USA Water

Ironbridge Equity Partners

12 Total Closed Deals Actively Sourcing Deals

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Ironbridge is a Toronto-based private equity firm with more than $750 million of assets under management focused exclusively on investing in companies in the Canadian lower middle-market. We focus on traditional industry businesses in the manufacturing, distribution, consumer products and services, and business products and services spaces. We have completed over 55 transactions since 2005 and are currently deploying from our $383M Fund IV. We are looking for new platform acquisitions in Canada fitting the following parameters:Lower middle-market focus:• Deal Sizes generally between $25 and…

Recent Transactions

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Oct 2018 Invested in Canada Metal (Pacific) Limited
Dec 2017 Invested in Midland Appliance
Jun 2017 Invested in Avena Foods
Jun 2017 Invested in Brooklin Concrete Products

ZS Fund

11 Total Closed Deals Actively Sourcing Deals

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We are a private equity firm engaged in making long-term investments in successful middle-market companies. Since 1985, we have focused on transactions that provide liquidity to business owners while enabling them to maintain a significant ownership stake and keep their company independent. Our strengths are understanding the objectives of business owners, structuring transactions that respond to those objectives, and being constructive partners to help increase the value of the businesses in which we invest.We look for a handful of important characteristics in a potential investment…

Recent Transactions

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Aug 2023 Acquired Research Horizons, LLC
Dec 2016 Acquired Juniper Landscaping Holdings, LLC
Jul 2016 Acquired Amerijet LLC
Dec 2012 Invested in SOS Security LLC

Keswick Partners

10 Total Closed Deals Actively Sourcing Deals

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Keswick Partners is a Lower-Middle Market PE firm armed with a $100M fund that invests in niche manufacturers, value-added distributors, and specialty service providers doing $2-$6M in annual EBITDA. Our Managing Partners have over 90 years of collective investing experience and have executed over 135 transactions in their shared careers. We presently have four active investments in our portfolio, but are looking to expand our operating footprint. We invest in rollovers, buyouts, carve outs, and more, but have developed a specialty in facilitating intra-family handoffs and employee…

Recent Transactions

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Jun 2025 Acquired Thomas Wilson Contracting
Jun 2025 Acquired Meeker Holding Company
Apr 2025 Acquired Seal Brothers
Dec 2024 Acquired Confidential Company

Tulcan

8 Total Closed Deals Actively Sourcing Deals

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With a focus on the businesses that make America strong, and a mission of empowering the people behind them, Tulcan is a family operated investment partnership providing equity in middle-market industrial companies.For nearly 30 years, we’ve been delivering value to some of the country’s oldest businesses by prioritizing stable growth, while dreaming big.We seek long-term partnerships with business owners who share our values of patriotism, family, and positive energy. Visit us at tulcan.com to learn more.

Recent Transactions

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Jan 2023 Invested in Aaron Concrete of Texas
Oct 2021 Invested in AGADCO of Texas
Apr 2012 Acquired National Signs
Mar 2011 Acquired Texas Bolt & Nut

NCA Partners

6 Total Closed Deals Actively Sourcing Deals

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NCA Partners is a leading Pacific Northwest based Private Equity Firm with over 20 years of experience in successfully partnering with entrepreneurs, business owners and management teams. Since 1992, NCA has consistently built value by making investments in leveraged buyouts, consolidations, turnarounds, recapitalizations and growth financings of smaller middle market companies, defined as companies with enterprise values ranging from $25 million to $250 million. Since its founding, NCA has invested over $200 million of equity capital. NCA has built a strong regional franchise based on an…

Recent Transactions

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Jul 2019 Invested in Doolittle
Aug 2017 Acquired Apply A Line
Aug 2014 Acquired Central Water
Apr 2014 Acquired PTW Energy Services

Sagemoore Capital

5 Total Closed Deals Actively Sourcing Deals

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Sagemoore is a private equity firm focused on making investments in the lower middle-market. We utilize an evergreen fund structure with committed capital from family office investors resulting in a patient capital base.This structure offers a flexible investment horizon designed to maximize stakeholder alignment by focusing on true long-term value creation. Sagemoore’s investment principals each have more than 15 years of professional investing and healthcare operating experience.We seek to cultivate deep partnerships with entrepreneurs and experienced operating teams for the benefit of…

Recent Transactions

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Aug 2024 Advised Sagemoore Capital on an investment from Confidential Company
Jan 2017 Acquired Carie Health
Mar 2014 Invested in ServRX
Apr 2011 Acquired Restore Health

9FB Capital

Actively Sourcing Deals

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9FB Capital is a lower mid market Private Equity firm which is operator-investor focused on buying, integrating, and compounding value in fragmented industries. At 9FB Capital, we pair disciplined acquisitions with a repeatable integration playbook: cross-selling across shared customer bases, driving organic growth with modern GTM and tech, unlocking financial efficiencies, and standardizing operations with EOS principles. We move quickly, treat founders like partners, and build platforms designed for optionality—recap or strategic exit on a predictable timeline.How 9FB Wins…

Recent Transactions

This member has no reported closed transactions.

Granite Street Partners

Actively Sourcing Deals

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Granite Street Partners is a private equity firm that invests in lower-middle-market industrial and manufacturing businesses with $1-5M EBITDA. Our approach is hands-on. We are operators ourselves, and we partner directly with owners and management teams to identify underlying value and build exceptional enterprise value and returns.

Recent Transactions

This member has no reported closed transactions.

Wellspring Capital Management

35 Total Closed Deals

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WELLSPRING CAPITAL MANAGEMENT, founded in 1995, is a middle-market private equity firm that has approximately $3 billion of private equity capital under management. The firm’s objective is to bring partnership, experience and value creation to each investment. By teaming up with strong management, Wellspring is able to unlock underlying value and pursue new growth opportunities through strategic initiatives, operating improvements and add-on acquisitions. The firm functions as a strategic rather than tactical partner, providing management teams with top-line support, M&A experience and…

Recent Transactions

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Oct 2016 Acquired Hoffmaster Group
Nov 2015 Acquired Bellwether Behavioral Health
Aug 2015 Acquired Ampac Holdings, LLC
Oct 2014 Acquired Qualitor

Firms in the Oil & Gas Equipment & Services Private Equity Funds directory are ordered based on recent deal activity on Axial. The default order reflects observed market signals rather than a subjective ranking of firm quality.

Each profile provides information about the firm’s areas of focus, transaction criteria, and relevant activity on Axial’s M&A platform. Together, these details provide a clearer view of where a firm is active and the types of companies and opportunities most relevant for it.

Based on activity on Axial’s M&A platform, the core revenue range for Oil & Gas Equipment & Services Private Equity Funds is $4M-$21M, with a core EBITDA range of $1M-$4M. Company size can be an important indicator of fit, as firms often concentrate their experience, resources, and transaction activity within particular segments of the market.

Relevant Energy & Utilities experience can be an important consideration when evaluating a firm. Familiarity with the sector can provide a stronger understanding of its business models, market dynamics, valuation considerations, and transaction environment. The 64 firms included in this directory provide a starting point for identifying firms with relevant experience and activity in Energy & Utilities.

Not necessarily. Many firms are active across multiple industries, so inclusion in the Oil & Gas Equipment & Services Private Equity Funds directory reflects relevant experience or activity in Energy & Utilities, rather than an exclusive sector focus. Individual profiles provide additional context on each firm’s areas of focus and activity within the sector.

When comparing Private Equity Funds with experience in Energy & Utilities, consider factors such as size range, geographic reach, and recent transaction activity. These characteristics vary across the 64 firms included in the directory and can help identify firms that align with your needs.

Axial can help you identify and connect with firms based on your objectives and what you are looking to accomplish. The process varies depending on your role and transaction needs. If you are interested in connecting with firms in the Oil & Gas Equipment & Services Private Equity Funds directory, you can request information here.

Top Oil & Gas Equipment & Services Private Equity Funds

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