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Who We Are

In 2006 a group of industry professionals recognised that the engineering and design capability of the UK's DNOs was stifled by overly prescriptive practice and ill-equipped to meet the mounting challenges in the quickly changing sector. OTSIB was established with the aim of disrupting this practice and supplying project-driven, high-quality design output, meeting stringent regulatory standards whilst providing much needed flexibility in an increasingly dynamic energy landscape. 

The team brought together over a hundred years of engineering, design, project management and draughting expertise from diverse backgrounds including generation, nuclear, transmission & distribution, protection & control, rail and aerospace. This depth of knowledge and scope of experience has allowed OTSIB to expand beyond DNOs, support clients in any industry needing high quality power engineering, instil confidence, drive innovation and deliver exceptional results year on year.  

Accreditation & Certification


Achilles - UVDB

UVDB is the utility industry pre-qualification system used across the UK.

Working closely with key

buying organisations we

achieve the highest

standards of supply

chain assurance.


ISO 9001 - UKAS

The world’s most popular quality management framework standard.

OTSIB aim to consistently meet and exceed customer expectations. UKAS is the only officially recognised certification body that ensures enterprise buyers can minimise their risk of purchasing a poor product or service.

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