Kevin Vallès

J.F. Lehman & Co. (JF Lehman) is a private equity firm founded by John Francis Lehman, Donald Glickman and Keith E. Oster in 1992. The firm is headquartered in New York with an additional office in Arlington, Virginia.

ENTACT LLC provides environmental remediation services to the private industry. It offers remedial construction which may include soil and sediment removal, large-scale earthmoving, application of chemical additives and reagents, soil and groundwater treatment, bioremediation processes, containment system construction, and solidification/stabilization. The firm also offers geotechnical services including Deep Soil Mixing, Single Axis Mixing, In-Situ Solidification/Stabilization, steel, vinyl, fiberglass and HDPE sheet pile installations, slurry cut-off wall installations, biopolymer slurry trenching, funnel and gate groundwater treatment systems, and Permeable Reactive Barrier walls. The company was founded in 1991 and is headquartered in Grapevine, TX.

Lazard Freres & Co. LLC provides corporate advisory, capital market, and asset management services. The company was founded on April 13, 1992 and is headquartered in New York, NY.

JLL Partners, Inc (JLL partners) is a private equity firm founded in 1988 by Paul S. Levy. The firm is headquartered in New York, US.