Serka Contracting LLC | 2,069 followers on LinkedIn. Serka Contracting LLC is an EPC company which is part of Adalı Holding; a top-tier Turkish conglomerate with a track record of 50 years in business. The group diversifies in EPC Construction, Life Support Services and Facility Management, Energy and Tourism. Adalı Holding is recognized for upstanding business ethics and timely delivery of high quality work to its customers.