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.

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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