French conglomerate Zodiac Aerospace has agreed to buy Everett-based Northwest Aerospace Technologies (NAT), a 160-employee engineering firm that specializes in aircraft cabin interiors.

The deal, for an undisclosed sum, is subject to regulatory approval.

NAT’s services include full-scale upgrades of aircraft cabin interiors and ensuring certification by the Federal Aviation Administration and its European equivalent.

Zodiac is a global leader in aircraft interiors, both in the retrofit market served by NAT and in the market for new airplanes built by Airbus, Boeing and others.

It has grown through aggressive aquisition to employ more than 26,000 worldwide. In the fiscal year ended in August, it earned a $629 million profit on revenue of $4.4 billion.

Zodiac is rapidly expanding its presence in Washington state. Last year, it acquired Heath-Tecna, a larger aircraft interior supplier in Bellingham.

It also owns C&D Zodiac, which makes cabin interiors in Marysville; IDD Aerospace, which designs flight deck lighting in Redmond; and Monogram Systems, which designs aircraft cabin systems in Everett.

Dominic Gates: (206) 464-2963 or