The 3Xtrim Aircraft Factory, or Zakłady Lotnicze 3Xtrim Sp.z o.o.in Polish, is an aircraft manufacturer located in the city of Bielsko-Biała, in southern Poland.

The company was established by former SZD sailplane engineer Adam Kurbiel in 1996

1996 in aviation

This is a list of aviation-related events from 1996:-February:* February 6 – Turkish charter company Birgenair Flight 301 crashes in Puerto Plata, Dominican Republic after takeoff...

 under the name Wytwórnia i Naprawa Konstrukcji Lekkich - A. Kurbiel. The company hired many of the out of work aerospace workers who formerly were employed at the sailplane manufacturer. The company name was changed to Zakłady Lotnicze 3Xtrim Sp.z o.o. in November 1999

1999 in aviation

This is a list of aviation-related events from 1999:-February:* February 16 – Gulfstream II carrying film director Barry Sonnenfeld , slid off runway at Van Nuys, California; Sonnenfeld was uninjured.*February 24 – A China Southwest Airlines Tupolev Tu-154 crashes in Ruian, China while descending...

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3Xtrim has concentrated on the design and production of the 3X55 and 3X47 ultralight aircraft, which first flew in prototype form in 1996.

The company name 3Xtrim is intended to be a double entendre, referring to the aircraft designs being "triple trimmed" (or more exactly “triple-tested”) during the design, prototype and production stages and also that the aircraft are designed for “extreme conditions”. In English the company name is pronounced “Three-Extreme”.