Stephen Paul Samways

Airwave Solutions Ltd. provides voice and data communications within emergency services. It offers radio communications network in the world, delivering critical voice and data communications to organizations that provide vital public services which includes the police, fire and ambulance services, local authorities, utilities, and transport providers. The company was founded on May 24, 2000 and is headquartered in Slough, the United Kingdom.

Part of National Grid Plc, Lattice Group Ltd. functions as an investment holding British company. The company is based in London, UK.

Part of National Grid Plc, NatgridTW1 Ltd. is a British company that provides other business support services. The company is based in London, UK and was founded in 2011.

Part of National Grid Plc, National Grid (US) Investments 2 Ltd. provides finance services. The company is based in London, UK and was founded in 1999.

Part of National Grid Plc, National Grid International Ltd. functions as an investment holding British company. The company is based in London, UK and was founded in 1990.

Part of National Grid Plc, National Grid Twelve Ltd. is a British company that connects people to the energy they use safely, reliably and efficiently. Founded in 2002, the company operates across the UK and US, developing, operating, and investing in large-scale clean energy infrastructure. The company is based in London, UK. The company is helping to accelerate society's drive towards net zero while maintaining security of supply today. National Grid Twelve is part of National Grid Ventures (NGV), which is at the forefront of the energy transition. NGV's venture capital and innovation company for the energy industry is National Grid Partners (NGP), which was created to 'disrupt itself' and advance the energy systems of tomorrow.

National Grid (US) Holdings Ltd. provides business support services. The company was founded on July 18, 1991 and is headquartered in London, the United Kingdom.

Part of National Grid Plc, NatGrid One Ltd. provides business support services. The company is based in London, UK.

Part of National Grid Plc, National Grid (US) Partner 1 Ltd. provides investment services. The company is based in London, UK.

Part of National Grid Plc, National Grid Commercial Holdings Ltd. is a venture capital and British innovation company for the energy industry. The company is based in London, UK. The company connects people to the energy they use safely, reliably, and efficiently, and is one of the world's largest publicly listed utilities focused on transmission and distribution of electricity and gas. By 2030, 90% of the energy imported by their interconnectors will be from zero carbon energy sources.

National Grid (US) Investments 4 Ltd. provides business support services. The company was founded on October 22, 1999 and is headquartered in London, the United Kingdom.

National Grid Holdings Ltd. owns and operates a high-voltage electricity transmission network services. The company is headquartered in London, the United Kingdom.

National Grid Holdings One Plc provides electricity and gas distribution services. The company is headquartered in London, the United Kingdom.