Our approach
Measure first, recommend second. We do not lead with technology; we lead with evidence from how your site actually runs.
Who we are
About Green Wing
We are an independent energy optimisation consultancy. Our value is in what we find — and in being honest about what is worth doing.
Independence
We are not tied to a single product line, so our roadmap reflects your site, not a sales target. A solution only appears when the measurement says it belongs there.
Who we work with
Hospitality, leisure, manufacturing and commercial property operators across the UK — especially multi-site estates where the same issues repeat branch after branch.
Our story
Green Wing has worked on commercial energy optimisation since 2009. We started with a simple observation: most energy waste is operational long before it is technological — hidden in plant settings, control schedules and daily routines that nobody has time to question.
Today we help operators of pubs, restaurants, hotels, gyms, factories and commercial property portfolios find that waste, rank the fixes, and prove the savings with evidence their finance teams can trust.
We have assessed more than 25 technologies across real operating sites. Not every solution suits every estate — and we will tell you when something will not pay back.
What we believe
Four principles that guide every engagement.
Measure first
We observe and profile before we recommend. Bills tell you how much you spent — not where it went or why.
Stay independent
No product line dictates our roadmap. Technology appears only when site evidence supports it.
Prove savings
Every roadmap item includes a measurement route — baseline, verification method and site context agreed upfront.
Fix operations first
Quick operational wins often outperform capital projects. We rank actions by payback and complexity.
Sectors we serve
Useful wherever energy is part of daily operations.
Hospitality
Leisure & hotels
Manufacturing
Commercial property
Why operators choose us
We turn hidden waste into ranked commercial decisions — what to do, why it matters, what it may save, and how to verify the result.
- No generic audit checklist
- No technology without proven suitability
- No savings claim without a measurement route
Meet our founder
Jon Cullum, Managing Director
Jon leads Green Wing's client engagements, ensuring purpose-fit solutions are recommended and delivered. He works directly with operators to translate site evidence into ranked, measurable action plans.
Contact Jon — joncullum@greenwinguk.com
Marketing & operations
Jennifer Griffiths, Marketing & Operations Manager
Jennifer oversees Green Wing's marketing, client reporting and backend operations — from campaigns and content to the data that supports savings verification and keeps projects moving day to day.
Contact Jennifer — jennifergriffiths@greenwinguk.com
Accreditations & partners
Approved assessor for the Groundwork VCSE Energy Efficiency Scheme · Certified Energy Auditor · ESOS-assessor review available where compliance evidence is required.
Next step
See what your estate is really doing with energy.
Arrange an Energy ReviewStart with a free 15-minute discovery call.