J.F. Lehman
Private equityNew York · Growth–Late Stage · 33 people tracked
Also known as J.F. Lehman And Company Llc
Investment thesis
JFLCO operates an integrated investment platform combining private equity and credit expertise built over decades, alongside value-creation capabilities and a broad network of industry relationships. The firm pursues sector-focused, middle-market strategies, targeting companies with distinctive capabilities in its core markets, which it describes as large, complex and growing. A balanced team of investment professionals and operating executives brings complementary skills and experience to help navigate these markets. JFLCO seeks to partner with management teams and other stakeholders to drive and realize value across both its equity and credit approaches.
Source: firm website, verified Aug 6, 2026.
Team · 33 people
from the firm's websiteWhat they invest in
from 13 of 48 portfolio companiesHardware ×7Advanced Manufacturing ×5New Materials ×4Defense Tech ×3Logistics & Supply Chain ×3Cleantech ×2Energy ×2Circular Economy ×1
HQs:United States×2United Kingdom×1
Investments · 48 tracked
founders shown can be your intro pathForged Solutions Group manufactures high-integrity forgings — including shafts, rings, discs, asymmetric forgings and extruded cylinders — in titanium, nickel, aluminium, copper and steel alloys from sites in the UK and USA.
Advanced ManufacturingDefense TechNew Materials
Co-investorsArlington Capital Partners
ACR ARTEX designs and manufactures emergency safety and rescue devices, including 406 MHz personal locator beacons with satellite and local signaling for people in maritime, aviation, and outdoor environments.
HardwareIoT
Poole, U.K.
Atlas Air Worldwide provides global airfreight services, including scheduled, charter, and military transport, operating a fleet for commercial, charter, and military customers.
Logistics & Supply Chain
Crystal Clean is a national environmental services provider operating a network of branches across the continental United States, offering waste collection, recycling, and remediation services.
Circular EconomyCleantechClimate Tech
Doncasters is a specialist manufacturer of complex precision cast components and other engineered parts made from advanced alloys, serving OEMs in the aerospace and defence, industrial gas turbine, transportation, and medical markets.
Advanced ManufacturingDefense TechNew Materials
Drew Marine supplies technical products and services for the maritime industry, including cargo hold and tank cleaning solutions, fuel management, water treatment, maintenance products, and refrigeration.
Logistics & Supply ChainNew Materials
Global Marine Group provides consultancy, engineering, installation, and maintenance services across the full lifecycle of subsea fibre optic cable systems, serving the telecommunications, power, and oil & gas markets.
Deep TechEnergyHardware
Simon Hibberd(CEO)
Lake Shore Systems, Inc. designs and engineers products for maritime customers in both commercial and defense markets.
Advanced ManufacturingDefense TechHardware
Narda-MITEQ designs and manufactures RF and microwave components, including cryogenic low noise amplifiers, for applications such as quantum computing, radio astronomy, deep space and satellite communications, and defense.
HardwareSemiconductorsSpace Tech
Sperry Marine develops navigation and integrated bridge systems for the maritime industry, serving vessel operators and maritime professionals.
HardwareLogistics & Supply ChainMobility & Transportation
Trident provides advisory, design, engineering, and construction services for the shipbuilding sector.
Advanced ManufacturingConstruction TechHardware
Waste Control Specialists provides treatment, storage, and disposal services for Class A, B, and C low-level radioactive waste, low activity waste, hazardous waste, and byproduct materials, along with cask and rail transportation services.
CleantechEnergyAndrews County, US
Wellman Dynamics manufactures aerospace-grade magnesium and aluminum castings, producing lightweight components built to customer specifications.
Advanced ManufacturingHardwareNew Materials
Fund performance · per public LP disclosures · 2
as of Dec 2024| Fund | Vintage | Committed | Net IRR | TVPI | DPI |
|---|---|---|---|---|---|
| J.F. Lehman Equity Investors IV, L.P.LPs: Connecticut Retirement Plans and Trust Funds | 2017 | — | 39.6% | 2.60x | 2.50x |
| J.F. Lehman Equity Investors III, L.P.LPs: Connecticut Retirement Plans and Trust Funds | 2011 | — | 9.5% | 1.50x | 1.10x |
Source: public limited-partner disclosures (CalPERS, CalSTRS). Net IRR / TVPI / DPI as reported by the limited partner; a fund's early-year IRR is an interim estimate (J-curve).
Frequently asked questions
- How many investments has J.F. Lehman made?
- J.F. Lehman has 48 tracked investments.
- What stage does J.F. Lehman invest at?
- J.F. Lehman invests at the Growth, Late Stage stages.
- What is J.F. Lehman's typical check size?
- J.F. Lehman typically writes checks of $75M – $750M.
- What sectors does J.F. Lehman focus on?
- J.F. Lehman focuses on Defense Tech, Mobility & Transportation, Space Tech.
- Where is J.F. Lehman located?
- J.F. Lehman is headquartered in New York, US.
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