Our portfolio companies illustrate our commitment to value creation through operational improvements, organic growth and strategic add-on investments.

To date, Pfingsten has acquired 159 companies through five investment funds. We are actively seeking platform and add-on investments for our $382 million Fund V, and add-on investments for our Fund IV platform companies.


Manufacturer and distributor of dimensional metrology instrumentation and calibration services.


Distributor of agricultural and propane parts, components and equipment. 

New England Electrical

Provider of electrical services serving the telecommunications, cellular, electrical vehicle charging and utility markets.

Omega Systems

Omega Systems is a provider of managed IT support services and solutions.

Environmental Lights

Environmental Lights is a leading manufacturer and distributor of commercial accent LED lighting, specializing in highly engineered systems that create distinct visual experiences.


Manufacturer and distributor of branded compressed air piping systems, components, kits, replacement parts and other related accessories.

Full Spectrum

National, brand agnostic service provider for laboratory instruments, offering a full range of service contracts, preventative maintenance programs, calibration and validation, repair services, parts, and reconditioned instruments.


South-Tek is a designer and manufacturer of nitrogen generators, serving customers across a diverse set of industrial and commercial end markets domestically and internationally.

Quality Valve

Quality Valve is a multi-brand distributor of OEM replacement and repair parts for safety and relief valves serving certified valve repair companies.

Diamond Assets

Diamond Assets is a leading, national provider of IT asset reclamation, refurbishment and distribution services serving the education, enterprise and government sectors.


Designer, manufacturer and online retailer of drone equipment, components and replacement parts for racing, consumer, commercial and military applications.


Manufacturer of wide format, portable promotional signage and displays under the Showdown Displays, Jansen Display and Promic brand names.

Kith Kitchens

Manufacturer of semi-custom framed and frameless kitchen and bath cabinetry under the Kith and Eudora brand names.