Denholm Energy Services is an international service provider offering leading edge services principally to the energy sector. ... With operations in the UK, USA, Caspian and Middle East, Denholm Energy Services are strategically based to support our clients across the international energy, and marine sectors. We provide high quality, innovative, reliable solutions, delivered safely to a portfolio of long term international customers across industry sectors including oil and gas, marine, defence, petrochemical, renewables, utilities and distilleries. Denholm Energy Services employ over 4,500 people and are proud of the specialist experience and skill of our workforce. Denholm Energy Services (formerly Denholm Oilfield Services) started as a division of J. & J. Denholm, a family owned business with close to 150 years of experience operating in the marine and service industries. With over 40 years of operational experience in oil and gas, Denholm Energy Services now operates as a stand alone Group and has an annual turnover in excess of £190m. Denholm Energy Services Companies: Denholm Engineering Denholm MacNamee Hazco Environmental Denholm Yam Denholm Zholdas Industrial Air Power KSW Engineering Petrasco Energy Services Relay Engineering Relay Zholdas SDL Nobel Speedy Zholdas SST-NDT read more