Meet Our Team.
Real experience and clear thinking, so everything we recommend is something you can actually use. We start with where you are. Your operations, your pressures, and what you’re trying to achieve. Then we work out the most practical way forward.
Mark Lebus
Chief Executive Officer
Mark helps leaders turn sustainability ambition into commercial advantage. Clear, strategic and focused on impact, he shows organisations the simplest path to meaningful progress.
Mike Jones
Head of Sustainability
Mike turns complex sustainability challenges into practical action. He brings people together, builds momentum and helps organisations move forward with confidence.
Charlotte Bassett
Sustainability Lead
Charlotte blends data and practicality to spot opportunities for real change. She helps organisations improve impact, strengthen performance and make sustainability part of everyday business.
Lovemore Mubata
Financial Controller
Lovemore keeps our operations strong, steady and ready to scale. He brings clarity, smart decision‑making and financial confidence to every project.
Amanda Orthin-Jones
HR & OFFICE MANAGER
Amanda brings energy, organisation and care to the team and our events. She creates a workplace where people feel supported, engaged and able to do their best work.
Mark Lebus
CHIEF EXECUTIVE OFFICER
Mark helps leaders turn sustainability ambition into commercial advantage. Clear, strategic and focused on impact, he shows organisations the simplest path to meaningful progress.
Mike Jones
Head of Sustainability
Mike turns complex sustainability challenges into practical action. He brings people together, builds momentum and helps organisations move forward with confidence.
Charlotte Bassett
Sustainability Lead
Charlotte blends data and practicality to spot opportunities for real change. She helps organisations improve impact, strengthen performance and make sustainability part of everyday business.
Lovemore Mubata
Financial Controller
Lovemore keeps our operations strong, steady and ready to scale. He brings clarity, smart decision‑making and financial confidence to every project.
Amanda Orthin-Jones
HR & OFFICE MANAGER
Amanda brings energy, organisation and care to the team and our events. She creates a workplace where people feel supported, engaged and able to do their best work.
Our associates.
Kiro Tarmer
ESSOS Lead Assessor & ENERGY AUDITOR
Certified Energy Auditor helping organisations meet ESOS requirements and cut energy waste with clear, practical guidance.
Klara Akerstrom
FRACTIONAL marketing manager
Fractional marketing and communications support bringing strategy, structure and messaging that flows and gets results.
Kiro Tarmer
ESSOS Lead Assessor & ENERGY AUDITOR
Certified Energy Auditor helping organisations meet ESOS requirements and cut energy waste with clear, practical guidance.
Klara Akerstrom
FRACTIONAL marketing manager
Fractional marketing and communications support bringing strategy, structure and messaging that flows and gets results.
What you gain from working
with 5D Sustainability.
Client focused thinking
Advice that connects your data, your goals and your commercial reality.
Straight answers
Clear guidance on what to prioritise now, what can wait, and why it matters.
People who understand
A team with real-world experience across sectors, who gets the challenges you’re facing.
Momentum, and progress
Results you can measure, communicate and feel genuinely proud of.
Our partners.
Change Agents
Training & Skills Partner
Impact‑driven training charity delivering practical skills development — from Carbon Literacy to climate action workshops.
Earth Change
Biodiversity & Generation Delivery Partner
Environmental engineering specialists creating habitats, restoring ecosystems and strengthening biodiversity.
Land + Water
Civil & Environmental Engineering Partner
A leading wet‑engineering firm delivering environmental solutions for rivers, wetlands and waterways across the UK.
SmartCool
Utility Monitor & Efficiency Partner
Non‑intrusive utility data monitoring and optimisation for owned, serviced and managed sites.
LC Energy
Renewable Energy (Biomass) Partner
Certified provider of sustainable woody‑biomass heating solutions.
Change Agents
Training & Skills Partner
Impact‑driven training charity delivering practical skills development — from Carbon Literacy to climate action workshops.
Earth Change
Biodiversity & Generation Delivery Partner
Environmental engineering specialists creating habitats, restoring ecosystems and strengthening biodiversity.
Land + Water
Civil & Environmental Engineering Partner
A leading wet‑engineering firm delivering environmental solutions for rivers, wetlands and waterways across the UK.
SmartCool
Utility Monitor & Efficiency Partner
Non‑intrusive utility data monitoring and optimisation for owned, serviced and managed sites.
LC Energy
Renewable Energy (Biomass) Partner
Certified provider of sustainable woody‑biomass heating solutions.
Purpose driven
Independent verification. Real accountability.
Quality assured
Measurable outcomes that matter.
Research led
Evidence-based thinking you can rely on.
Turning sustainability into strategic advantage.
5D worked alongside the leadership team to clarify sustainability priorities, strengthen governance and translate carbon data into clear, commercially meaningful action.
Inspired by our team?
If you’re ready to turn good intentions into action, start by meeting the people who’ll be in your corner.
