Portclinic provides emergency medical assistance and clinic services to employees and customers of organizations served under separate contracts. Names of several companies served in this manner are:

TAV Airports Holding Co.
TAV'S SUBCONTACTORS
- AKIN ISI & EKİN JV
- ALBAYRAKLAR Group of Companies
- TEKNOTES Ltd. Co.
- ANEL ELEKTRİK
- ARTI Foreign Exchange Co. Inc.
- TEPE Security HAVAŞ Ground Handling Co.
Turkish Airlines
ATÜ Tourism Works Inc.
BTA Catering Services Inc.