Vance Street Capital Forms Spectra A&D by Combining Calculex, Argon and FDS Avionics

Fairbanks Morse Defense (Arcline) Acquires Vestdavit

September 10, 2025

Aerospace & Defense

Fairbanks Morse Defense, a portfolio company of Arcline Investment Management, has acquired Vestdavit, a Bergen-based supplier of davits and advanced boat-handling systems, from its four owners for an undisclosed amount. The deal expands FMD's marine handling and OEM capabilities and adds Vestdavit's manufacturing site in Poland plus service centers in the Netherlands and Seattle to FMD's global footprint.

Diverzify+ (ACON-backed) Combines with Spectra Contract Flooring and ProSpectra from Shaw Industries

February 7, 2022

Industrial Services

Diverzify+, a commercial flooring and facility services platform backed by ACON Investments, completed a business combination to acquire Spectra Contract Flooring and ProSpectra Contract Flooring (subsidiaries of Shaw Industries Group, a Berkshire Hathaway company). The combined company expands Diverzify's national footprint to approximately 52 locations, broadens its end-markets (healthcare, education, multifamily, government) and service offerings, and targets nearly $1 billion in revenue.

FDH Aero Acquires Calco Aerospace

January 4, 2022

Aerospace & Defense

FDH Aero has acquired Calco Aerospace (Calco Industries, LLC) from founders Charlie and Lisa Gralapp, strengthening FDH's presence in the military rotorcraft supply chain. The deal positions FDH to accelerate growth with new and existing OEM and aftermarket customers and complements the company's prior acquisitions while remaining under Audax Private Equity-backed ownership.

FDH Aero Acquires Stealth Aerospace

October 18, 2021

Aerospace & Defense

FDH Aero, a distributor of aerospace parts and an Audax Private Equity portfolio company, has acquired Stealth Aerospace, a Southern California-based stocking distributor of aerospace electrical and electro-mechanical components. The add-on strengthens FDH's position in the U.S. commercial and cargo aerospace aftermarket and expands its global aftermarket channel and AOG support capabilities.

Spectra A&D Holdings (Vance Street Capital) Acquires Galleon Embedded Computing AS

August 16, 2021

Aerospace & Defense

Spectra A&D Holdings, a portfolio company of Vance Street Capital, has acquired Oslo-based Galleon Embedded Computing AS in an add-on transaction to expand Spectra's C5ISR and embedded computing product portfolio for aerospace and defense customers. The acquisition broadens Spectra's proprietary offerings (servers, NAS, data recorders, board-level solutions) and extends the platform's international reach into Europe.

FDS (Calvert Street Portfolio Company) Completes Strategic Merger with Amplicare

November 2, 2020

Cloud & SaaS

Calvert Street-backed pharmacy software provider FDS completed a strategic merger with Amplicare effective August 31, 2020, combining Amplicare's Medicare plan comparison and decision-automation tools with FDS's New Era Pharmacy platform. The combined organization will remain based in Fort Worth, Texas, operate additional locations in New York City and Columbia, Maryland, and serve more than 15,500 pharmacies nationwide to expand capabilities and data-driven services for community pharmacies.