Carbon Neutral
Construction / Infrastructure
Octavius Infrastructure
Octavius Infrastructure publicly stated in 2022 that it was carbon neutral through its offsetting programme.
United Kingdom
Companies in the UK
UK company directory
Browse companies and the carbon statements they make publicly. Search by name, sector, location or topic.
Listings describe companies' public claims. We do not independently audit or certify the companies. What the labels mean.
Directory results
1761 companies
Page 47 of 74
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Other Public Sustainability Claim
Energy / Fuel
Octopus Energy
Octopus Energy publishes environmental reporting and a stated programme focused on reducing operational emissions while accelerating renewable-energy adoption.
United Kingdom and international markets
Net Zero
Events
Olympia London
Olympia London publicly describes a roadmap to net zero connected to the Net Zero Carbon Events Pledge.
London, United Kingdom
Carbon Reduction Plan
Marketing / Creative Agency
Omnicom UK
Omnicom has an SBTi-validated target to reduce absolute Scope 1, 2 and 3 greenhouse-gas emissions 46.2% by 2030 from 2019.
United Kingdom operations within a global communications group
Carbon Reduction Plan
Construction / Infrastructure
OPEC Construction
OPEC Construction reports a 13% reduction in total emissions from its 2019/20 baseline and commits to net-zero UK operations by 2050.
Burnham, Buckinghamshire
Carbon Neutral
Events
Opera North
Opera North aims to become carbon neutral by 2030 and reports measures spanning renewable power, productions, buildings, travel, materials and staff engagement.
Leeds, United Kingdom, touring opera and music across northern England and beyond
Net Zero
Facilities / Grounds Maintenance
Opex Consulting
Opex Consulting commits to achieving net-zero emissions by 2050.
London, Leeds and Market Harborough, England
Net Zero
United Kingdom
Net Zero
Telecoms / Communications
Opus Technology
Opus Technology has committed to achieving net-zero emissions by 2050.
United Kingdom
Carbon Reduction Plan
Technology / IT Services
Oracle UK
Oracle UK publishes a fiscal-year 2025 UK Carbon Reduction Plan, released in January 2026.
United Kingdom
Net Zero
Finance / Business Services
Origin Safety
Origin Safety commits to achieving net-zero carbon emissions by 2045.
Hampshire, England
Net Zero
United Kingdom and European markets
Net Zero
Energy / Fuel
Ørsted UK
Ørsted publishes science-based targets and a commitment to achieve net-zero emissions across its value chain by 2040.
United Kingdom
Carbon Reduction Plan
Healthcare
Orthotix (Dacey Ltd)
Dacey Ltd reports 1,899.05 tCO2e for 2024/25 versus a 3,300.17 tCO2e 2020/21 baseline and commits its UK operations to net zero by 2050 or earlier.
Cardiff, Wales, United Kingdom
Net Zero
Construction / Infrastructure
Osborne Energy Ltd
Osborne Energy Ltd has committed through the SME Climate Hub to reach net-zero emissions by 2050.
United Kingdom
Certified Carbon Neutral
United Kingdom
Carbon Reduction Plan
Healthcare
Otsuka Pharmaceutical UK
Otsuka Pharmaceutical UK reports 1,319.09 tCO2e for 2024 across Scope 1, market-based Scope 2 and included Scope 3 sources, within its group's 2050 environmental vision.
Windsor, serving the United Kingdom
Carbon Reduction Plan
Healthcare
Otua
Otua publishes a 2025 Carbon Reduction Plan and commits to net-zero emissions by 2050.
United Kingdom
Net Zero
Hospitality
Outside Devon
Outside Devon aims to become near zero by 2030 and achieve net zero by 2040.
Bantham, Devon
Certified Carbon Neutral
Manufacturing
Ovendens
Ovendens states that it held CarbonNeutral company certification for its business operations in 2025.
Harlow, Essex
Net Zero
Energy / Fuel
OVO Energy
OVO publishes its Plan Zero strategy, including emissions-reduction goals for its operations and the energy used by customers.
United Kingdom
Other Public Sustainability Claim
Glasgow, United Kingdom
Carbon Neutral
Finance / Business Services
Oxera Consulting
Oxera reports that it has maintained carbon-neutral operations since 2021.
United Kingdom and Europe
Carbon Reduction Plan
Healthcare
Oxford BioSystems
Oxford BioSystems publishes a September 2025 Carbon Reduction Plan and commits to achieving net zero by 2045.
Milton Park, United Kingdom