Blackrow Group and On Line Group Ltd (OLG) have entered a strategic partnership aimed at delivering integrated engineering solutions across the UK’s industrial heartlands. The move positions both firms to capitalise on growing public and private investment in energy and transport infrastructure, following the 2025 Spending Review.
Combining over 100 years of industry experience, the two companies generate a joint annual revenue exceeding £75 million and employ more than 600 staff. Their six-site footprint, including key locations in Grimsby, Immingham, and Leicester, offers more than 250,000 square feet of manufacturing space.
The partnership offers a comprehensive suite of services, encompassing design, engineering, fabrication, installation, and mechanical services. Blackrow will lead on mechanical and installation services, while OLG will handle design and project management, creating a unified delivery model from concept to completion.
Workforce development is a priority for the alliance, with over 50 apprentices in training across six disciplines. Both firms are working towards ISO 44001 certification to formalise a collaborative approach centred on client value.
Sustainability is also a core focus. Blackrow contributes to the renewables sector through the fabrication of components for wind, solar, and biofuel infrastructure. The partnership is aligned with government-backed industrial decarbonisation initiatives in the Humber region, including hydrogen, carbon captur,e and clean energy projects.
The alliance reinforces the UK’s industrial supply chain at a time when scale, specialisation, and collaboration are increasingly essential for delivering national infrastructure.
