The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Sws Certification Services LTD

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Boeing 747. FAA spelling: SWS Certification Services Ltd.

Approved modifications 2 · newest first

Boeing 747 1Airbus A340 1
2018-05-01ST04128NY · Installation of Aeroloft (TM) Overhead Passenger Sleeping Compartment immediately forward of the Overhead Flight... · 747-8 Series
2013-09-03ST03327NY · Installation of Recaro Economy seats and Avio Business Class seats, fitted with Panasonic EX2 IFE, onto TAP · A340-312

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.