Pfingsten Completes Third Acquisition for Laboratory Instrumentation Services Platform

Full Spectrum Acquires Analytical Maintenance Services

Pfingsten announces its portfolio company, Full Spectrum Group, LLC (“FSG”) has acquired Analytical Maintenance Services, Inc. (“AMS”), a provider of analytical laboratory instrumentation repair, qualification and validation services. Headquartered in Boca Raton, Florida, AMS serves customers in the pharmaceutical, chemical and forensics markets.

“The acquisition of AMS expands our service coverage in the Southeast and strengthens our presence in the pharmaceutical market,” said Bob McLeese, President and CEO of FSG. “We continue to focus on strategic acquisitions that add new service capabilities, expand our geographic coverage or strengthen our position within specific end markets.”

“AMS adds an important new Florida location to the FSG platform,” said John Martin, VP Sales at FSG. “As we broaden our national footprint, we are able to better serve national accounts with consistent and reliable service to more of their locations.”

AMS represents FSG’s third strategic acquisition since Pfingsten became the majority shareholder in February 2019. FSG is a national, multi-vendor service provider for laboratory instrumentation, offering a full array of service contracts, preventative maintenance programs, calibration services, instrument qualification and instrument repair services, as well as reconditioned instruments and parts.

The transaction closed on March 23, 2021. To learn more about FSG, please visit

About Pfingsten

Pfingsten is an operationally focused private equity firm formed in 1989. From its headquarters in Chicago, IL and representative offices in ChangAn, China, New Delhi, India and Chennai, India, the firm builds better businesses through operational improvements, professional management practices, global capabilities and profitable business growth rather than financial engineering. Since completing its first investment in 1991, Pfingsten has raised five investment funds with total commitments of approximately $1.3 billion and has acquired 146 manufacturing, distribution and business services companies. For more information, visit

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