SkyMark Refuelers (Sky Island Capital) Acquires Bruder Tank, Inc.

ATL Partners Acquires SkyMark and Rampmaster to Create Specialty Vehicle Equipment Platform

January 7, 2026

Aerospace & Defense

ATL Partners has acquired SkyMark Companies and Rampmaster and will combine the two businesses into a global specialty vehicle equipment platform focused on aviation refueling and ground support equipment. A&M Capital Strategic Investments completed a minority investment alongside ATL; both management teams will retain leadership roles and meaningful equity stakes in the combined company. Financial terms were not disclosed.

SkyMark Refuelers (Sky Island Capital) Acquires Becker & Associates, Inc.

March 25, 2025

Manufacturing

SkyMark Refuelers, a Sky Island Capital portfolio company, has acquired Becker and Associates, Inc., a nearly 60-year supplier of aviation and ground fueling equipment based in East Dundee, Illinois. The acquisition is an add-on to SkyMark’s parts and aftermarket capabilities to expand its product offering across aviation, natural gas, oil and chemical processing end markets.

WTRBox, LLC Acquires J. Mark Systems

March 25, 2022

Industrial Services

WTRBox, LLC, an industrial water treatment finance and operations platform, has acquired J. Mark Systems, a Grand Rapids, Michigan-based industrial water treatment solutions company founded in 1984. Calder Capital represented J. Mark Systems and the deal enables WTRBox to expand its operational and installation capabilities while providing an ownership transition for founder and CEO Mark Zeilbeck.

Sky Island Capital Acquires Majority Stake in SkyMark Refuelers and KC Tank

January 19, 2022

Manufacturing

Dallas-based private equity firm Sky Island Capital made a majority investment in SkyMark Refuelers, LLC and related company KC Tank, LLC, partnering with the companies' founders to support growth. SkyMark, headquartered in Kansas City, Kansas with production in Findlay, Ohio, is a manufacturer of custom work trucks and vacuum tanks serving aviation refueling, liquid waste removal, rail, and other industrial end markets.

Sky Island Capital Makes Majority Investment in USA Industries

January 18, 2022

Manufacturing

Dallas-based private equity firm Sky Island Capital has made a majority investment in USA Industries, a South Houston, Texas manufacturer of piping isolation and testing products, alongside the company's second-generation founding family. Sky Island will support USA Industries' growth plan and product/solutions expansion through operational and financial resources as the company continues serving refining, petrochemical, chemical, industrial and OEM end markets.

Skyline Construction Enterprises Acquires Seattle-based Unimark Construction (and Servicemark)

February 4, 2020

Construction

Skyline Construction Enterprises, Inc. has acquired Seattle-based Unimark Construction Group LLC and its sister company Servicemark LLC as an add-on to its family of commercial real estate and construction companies. The deal expands Skyline’s geographic footprint and capabilities in Seattle while providing succession planning and organizational support for the acquired teams; Unimark and Servicemark will continue operating under their existing brands and teams.