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TDC is proud to have achieved the following affiliations, awards and accreditations:

UVDB Verify

TDC has achieved certification from UVDB Verify for ISO 9001:2015 (quality management) following rigorous assessment of company principles, practices and procedures.

Global Energy Gold

Global Energy Gold is the world's leading oil and gas industry supply chain database and is the key tool used by operators and contractors in the European energy oil sector to source reliable suppliers. To achieve Global Energy Gold status involves a formal audit visit to a nominated supplier's premises to assess their capabilities in the areas of quality, health and safety, environment and competence and training.

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One of the UK's largest and longest established certification bodies, NQA provides certification and assessment services and related training to a wide range of manufacturing, commercial and service sectors.

Association of Electrical and Mechanical Trades (AEMT)

The Association of Electrical and Mechanical Trades (AEMT) contains amongst its membership the majority of the leading companies in the UK who repair and recondition electric motors, pumps and other rotating plant, including controls and electronic equipment.


SGS Baseefa is a world-renowned certification body, principally concerned with electrical and mechanical equipment intended for installation and use in potentially explosive atmospheres.


DNV GL provide certification services to customers across a wide range of industries. Combining leading technical and operational expertise, risk methodology and in-depth industry knowledge, we empower our customers’ decisions and actions with trust and confidence.

Bureau Veritas

Bureau Veritas is a global leader in Testing, Inspection and Certification, delivering high quality services to help clients meet the growing challenges of quality, safety, environmental protection and social responsibility. As a trusted partner, Bureau Veritas offers innovative solutions that go beyond simple compliance with regulations and standards, reducing risk, improving performance and promoting sustainable development.

Lyoyd's Register

Lloyd’s Register has a long-standing reputation for integrity, impartiality and technical excellence. Their compliance, risk and technical consultancy services give clients confidence that their assets and businesses are safe, sustainable and dependable.


ABS has been at the forefront of marine and offshore energy innovation for more than 150 years. In a constantly evolving industry, ABS works alongside its partners tackling the most pressing technical, operational and regulatory challenges so the marine and offshore industries can operate safely, securely and responsibly.

Maritime & Coastguard Agency

Maritime & Coastguard Agency work to prevent the loss of life on the coast and at sea. They produce legislation and guidance on maritime matters, and provide certification to seafarers. Responsible for the safety of everybody in a vessel in UK waters, making sure all equipment on UK vessels is fit for purpose.

Underwriters Laboratories Inc.

Underwriters Laboratories is the trusted source across the globe for product compliance. Benefiting a range of customers, from manufacturers and retailers to consumers and regulating bodies, it has tested products for public safety for more than a century.


The National Inspection Council for Electrical Installation Contracting is the UK’s leading charitable organisation protecting the public from unsafe and unsound electrical work.


The United Kingdom Accreditation Service (UKAS) is the sole national accreditation body recognised by government to assess, against internationally agreed standards, organisations that provide certification, testing, inspection and calibration services.


IECEx is a voluntary system which aims to facilitate international trade in equipment and services for use in explosive atmospheres, while maintaining the required level of safety.


CompEx is a global certification scheme for electrical and mechanical craftspeople and designers which demonstrates their competency to work in potentially explosive atmospheres.

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