leit-werk is proud to count among its clients:
- ABB Airports Technology
- Alexander Mineev
- Archway Early Years Centre
- Asgard GmbH
- Bilfinger & Berger
- Blackpool Borough Council
- Cape Verde Solutions Ltd.
- CDA Islamabad
- Civil Aviation Authority Pakistan
- Dorsch International Consultants GmbH
- Durham Tees Valley Airport Limited
- ERCO GmbH
- Ethiopian Airlines
- European Union
- FAB Islamabad
- Fritzsch&Mackat
- Fichtner GmbH
- Flughafen Dresden GmbH
- Flughafen München GmbH
- German School in London
- HI-DRA Consultants
- ILF/acp
- Kazaeronavigatsia
- Khalid Benjelloun
- Leader Asset Management
- Leighton Middle East
- London Borough of Barking and Dagenham
- London Borough of Camden
- London Borough of Newham
- Marcus Mukoro
- Mazowiecki Port Lotniczy Sochaczew
- MPN Exxon Mobile Nigeria
- Oasis for Holidays Ltd Albena
- Peel Holdings
- Porsche Leipzig GmbH
- Rheinland Air Service GmbH
- Savant Polska
- SIEMENS
- Stadt Annaberg-Buchholz
- Stadt Oberhausen
- Stoke-on-Trent City Council
- Spiekermann AG
- TMT Mobile Terminal Management GmbH
- Unique Zurich Airport
- Vienna International Airport
- Woods Bagot Ltd