From Vision to Reality

“Dedicated to delivering uncompromising quality since 1998”

IACS was the vision of John Hewitt. With several decades’ of experience providing and managing Inspection Services in the energy sector, he saw the benefits of providing and coordinating quality assurance and quality control services across the sector and knew their company would have to prove itself exceptional from the start.

Launching IACS in late 1998, his commitment, expertise, and integrity was soon recognized in the UK and beyond. Endorsements came within that first year of trading when IACS secured a prestigious Framework Agreement with National Grid plc, the first of many long-term gold standard partners, for whom IACS has provided services on a continuous basis since.


  • 1998: IACS launched
  • 1999: First overseas assignments completed in Eire and France, first Framework Agreement secured, with National Grid
  • 2000: Opened the vendor inspection and expediting division, and secured first contracts for maintenance and materials inspection, including in France, Germany, Italy and the United Kingdom.
  • 2001: Consultancy services for corrosion engineering and welding technology launched
  • 2002: Secured first offshore contract, and first long-term Far East contract, in Hong Kong
  • 2003: Secured ISO 9001 accreditation
  • 2005: Internal training division commenced delivering courses
  • 2009: Phased Array ultrasonic weld examination services launched
  • 2010: New Project Management Services division secured first contract
  • 2017: Expanded into new premises
  • 2019: Secured ISO 14001 accreditation
  • 2021: New larger premises secured for continued expansion

Geographical Operating Areas and Clients

From across the UK, IACS offer expert services in diverse on and offshore territories, environments and specialist conditions across the globe. Having carefully nurtured a network of quality partners and a mobile, professional workforce, we are flexible and responsive, ready to strengthen your project, anywhere in the world.

Areas IACS have or are currently operating in include: Abu Dhabi, Angola, Argentina, Austria, Belgium, Bolivia, Brazil, China, Chile, Congo, Czechoslovakia, Denmark, Eire, France, Gabon, Georgia, Germany, Greece,  Holland, Hong Kong, Hungary, India, Italy, Japan, Korea, Malaysia, Mexico, Nigeria, Peru, Poland, Portugal, Qatar, Romania, Spain, Tunisia, Turkey, USA, Yemen.

IACS are proud to be the quality choice for premier clients including: Advantica, Amec, BG Bolivia, BG Tunisia, Burlington Resources (North Sea) Ltd, Cecon Netherlands BV, Europipe SA, Eurtrue Italia, Exolum Pipeline Systems Ltd, Fastflow Energy Services, Genesis Oil & Gas Limited, Heathrow Hydrant Operating Company, Hong Kong & China Gas Company, John Brown Hydrocarbons, Intergen, Lloyds Register, Murphy International, Nexen Petroleum, Offshore Design Engineering, Parsons Brinckerhoff Limited, PPS Pipeline Systems GmbH, Qatar General Petroleum Company, Rolls Royce, Rush Construction, RWE Technology, Santos (Australia), Spie Capag, TUV (Nord) Middle East, Tical Resources Canada.

Framework Agreements are currently held with Cadent Gas Limited, J Murphy & Sons, National Grid plc, Northern Gas Networks, Scotia Gas Networks and Wales & West Utilities.

Our future: Your success

Still privately owned and true to its family roots, IACS remains committed to our core principles of total quality, efficiency, and integrity. With over twenty years’ experience at the top of our business, you directly benefit from our expertise, connections and top-rated personnel, delivered with a refreshingly individual focus on your project needs.

At IACS we keep striding forward, embodying the highest quality standards, while operating at the forefront of exciting and environmentally aware technology, innovation and people deployment. Whether you are coming to us as a client, partner, vendor, or employee, we’re your keystone to building future success.

“Your journey. We could help you get further than you believed possible”

Let’s start that conversation

Our team are on hand and delighted to help with any enquiry. We know your time is important, so there’s no hanging on the phone, going through endless options, or repeating yourself. Simply fill in your details, we’ll make sure the right person for your query gets back to you direct, within 24 hours.