What J.F. Lehman & Co does

J.F. Lehman & Company (JFLCO) is a private equity and alternative asset management firm founded in 1992, headquartered in New York with a secondary office in Washington, D.C. The firm specializes in acquiring lower middle market companies that operate in aerospace, defense, government, maritime, environmental, and infrastructure end markets. JFLCO manages over $8 billion in assets under management across multiple flagship buyout funds and a complementary credit strategy; its sixth private equity fund, JFL Equity Investors VI LP, closed in December 2024 at $2.2 billion — the largest fund in the firm's history — and the firm is currently targeting $2.75 billion for a seventh flagship fund.

JFLCO deploys capital through buyout transactions and platform investments, frequently partnering with management teams, minority co-investors (e.g., TRM Equity in Wellman Dynamics), and a recurring set of debt financing partners including HPS Investment Partners, Audax Private Debt, Eldridge Capital Management, Guggenheim Investments, PGIM, Deutsche Bank Private Credit & Infrastructure, Barings Finance, and Siemens Financial Services. The portfolio includes majority-owned operating companies such as Forged Solutions Group (high-specification aerospace and defense forgings), Wellman Dynamics (aerospace and defense castings), Atomic Transport (waste services across 19 states), Reclamation Technologies USA and Tradewater (a newly formed environmental services platform), and Trident Maritime Systems (naval and electronic systems). Notable realization events include the 2025 sale of Narda-MITEQ to Amphenol Corporation, the divestiture of Trident Maritime Systems' UK operations to DC Capital Partners in October 2025, and the June 2026 NYSE IPO of minority-held DPC Holdings (Doncasters) under ticker DPC.

JFLCO's revenue is generated through fund management — management fees on committed or invested capital and carried interest on profitable exits — though neither fee schedules nor firm-level revenue are publicly disclosed. The firm differentiates itself on the basis of three-decade sector specialization, a balanced team of investment professionals and operating executives, and an integrated private equity and credit platform designed to support middle-market companies with unique capabilities in large, complex, regulated end markets.

Name

J.F. Lehman & Co

Legal name

J.F. Lehman & Company

Website

https://jflpartners.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

51–100 employees

Short description

J.F. Lehman & Company is a sector-focused private equity and alternative asset manager founded in 1992 that invests in lower middle market companies across aerospace, defense, maritime, environmental, and infrastructure sectors, managing over $8 billion in AUM through multiple flagship funds.

Ownership category

akta.pro rank

Product category

Private Equity Investment Management

NAICS

Portfolio Management and Investment Advice (52394), Credit Intermediation and Related Activities (522)

SIC

Investment Advice (6282)

akta.pro primary industry

Sector-Focused Venture Capital (Vertical Specialists) (FSANAAAD)

akta.pro secondary industry

Distressed / Opportunistic Credit (FSANADAF)

Keywords

• Private equity investments
• Middle market buyouts
• Defense sector investing
• Aerospace private equity
• Alternative asset management

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Core offering

J.F. Lehman & Company is a sector-focused private equity and credit investment firm that acquires and manages lower middle-market companies in aerospace, defense, government, maritime, environmental, and infrastructure markets. It invests through buyout funds (e.g., JFL Equity Investors VI LP, $2.2 billion closed December 2024) and a credit strategy, providing capital, strategic guidance, and operational support to portfolio companies. The firm has over $8 billion in assets under management and is raising a $2.75 billion seventh flagship fund.

Product overview

J.F. Lehman & Company is a private equity and alternative asset management firm, not a product or technology company. The firm focuses exclusively on providing private equity and credit investment services across aerospace, defense, government, maritime, environmental, and infrastructure sectors. The firm does not offer standalone software products, platforms, or modules; rather, it operates as an investment manager that acquires and manages portfolio companies in these specialized sectors. The portfolio includes companies such as Forged Solutions Group (aerospace and defense forgings), Narda-MITEQ (RF and microwave components), Wellman Dynamics (aerospace castings), Reclamation Technologies USA and Tradewater (environmental services), and Trident Maritime Systems (naval systems), among others. These are independent portfolio companies, not branded product lines or service modules of J.F. Lehman & Company itself.

Differentiator

Problem solved

Functional benefit

Products and services

• Private Equity Buyout Strategy
• Credit Strategy

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered minor.

• Jones DayminorImplementation/ SI/ Consulting Partner · 2 March 2026Jones Day provided legal counsel services for the Forged Solutions Group acquisition.
• Sheppard MullinminorImplementation/ SI/ Consulting Partner · 2 March 2026Sheppard Mullin provided legal counsel services for the Forged Solutions Group acquisition.

Scale indicators4 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• AE Industrial Partners: AE Industrial Partners is a private equity firm specializing in aerospace, defense, and industrial services — directly mirroring JFLCO's vertical focus on aerospace, defense, and government sectors with comparable fund sizes and middle-market deal profiles.
• Arlington Capital Partners: Arlington Capital Partners is a sector-focused PE firm investing exclusively in defense, government, healthcare, and technology businesses — a direct comparable given JFLCO's analogous defense and government services concentration and middle-market deal size.
• Greenbriar Equity Group: Greenbriar Equity Group is a middle-market PE firm focused on industrial manufacturing, specialty distribution, and aerospace/defense services — closely aligned with JFLCO's industrial and aerospace vertical specialization.
• Insight Equity: Insight Equity is a middle-market PE firm focused on industrial and defense-related manufacturing — comparable to JFLCO's sector-focused lower-middle-market buyout strategy in aerospace, defense, and government-adjacent industries.
• Court Square Capital Partners: Court Square Capital is a middle-market buyout firm that has historically invested across industrial, aerospace, and government services sectors — comparable in fund size, holding period, and operational orientation to JFLCO.
• DC Capital Partners: DC Capital Partners is a sector-focused PE firm investing in defense, aerospace, and government services — a direct comparable given JFLCO acquired Trident Maritime Systems' UK operations from DC Capital Partners, indicating overlapping investment theses.

Broad incumbents

• Audax Private Debt: Audax Group is a large middle-market private equity and direct lending platform — comparable to JFLCO as a repeat financing partner serving the same middle-market sponsor-backed deals in aerospace, defense, and industrials.
• HPS Investment Partners: HPS Investment Partners is a major global credit and direct lending platform and a frequent debt financing partner of JFLCO — overlapping with JFLCO's credit strategy while operating at significantly larger scale across middle-market industrials.
• Cerberus Capital Management: Cerberus Capital Management is a large alternative asset manager with broad industrial, defense, and government services exposure — comparable as a sector-spanning alternatives platform, though operating at meaningfully larger scale than JFLCO.

Others

• L3Harris Technologies: L3Harris Technologies is a major publicly traded defense prime contractor that previously owned Narda-MITEQ (sold to JFLCO in 2021) — relevant as both a seller into JFLCO's portfolio and a benchmark for the defense electronics segment JFLCO invests in.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries7 records

Funding overview

Funding rounds1 record

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A41 records

Investments5 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about J.F. Lehman & Co