Audax Acquires TDI Power

Audax Acquires TDI Power

tdi power nf1Astrodyne Corporation, an Audax Group portfolio company, has acquired TDI Power from private owners. Audax Group acquired Astrodyne from American Capital in April 2008.

TDI Power designs and manufactures power supplies and systems that are used in applications requiring precise voltage and/or current in harsh or highly variable conditions. The company sells its products into the semiconductor, industrial, and medical markets. TDI is headquartered in Hackettstown, NJ (

With the purchase of TDI Power, Astrodyne has now completed six add-on acquisitions under Audax’s ownership: RO Associates (March 2010), Jerome Industries (May 2011), Radius Power (December 2013), LCR Electronics (December 2013), and Filter Concepts (June 2014).

Today, Astrodyne is a designer, manufacturer, and distributor of AC/DC power supplies, DC/DC converters, and external and wall-mount power adapters. The company sells its products through catalog, direct sales, and online channels.  With operations in the United States, China, and Taiwan, the company serves industrial, audio/visual, medical, instrumentation, and distribution end markets. Astrodyne is headquartered in Mansfield, MA (

oliver ewald nf1“TDI Power enjoys a strong reputation in the market for precision, high power solutions. Both TDI and Astrodyne customers alike will benefit immensely from the expanded product selection and design capability that the combined entity is positioned to offer,” said Oliver Ewald, Managing Director of Audax Group.

The Audax Group makes control investments of $10 million to $100 million in middle market companies with transaction values of $25 million to $500 million. Sectors of interest include industrial manufacturing; energy; outsourced industrial services; consumer products; healthcare devices and services; non-asset based logistics; technology; aerospace & defense; business services; and direct marketing.  Audax has over $6 billion in assets under management in its private equity, mezzanine, and senior debt businesses. The firm was founded in 1999 and has offices in Boston and New York (

2014 PEPD • Private Equity’s Leading News Magazine • 11-7-14

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