Specialist Sustainability Consultancy Est. 2012
About Us
Our Story
Mainer Associates is a specialist sustainability consultancy dedicated to making developments better - supporting organisations across the UK to design, construct and operate places that are resilient, responsible and future-ready. Established in 2012, we have grown from a small, values-driven team into one of the UK’s leading sustainability consultancies for the built environment. Our purpose is simple: empower our partners to develop more sustainably and confidently achieve their environmental and net-zero ambitions.
What We Do
We blend technical excellence with practical insight to guide clients through critical project milestones. Our team assesses and enhances the environmental performance of developments using a whole-life approach, ensuring that decisions are informed, cost‑aware and aligned with long‑term sustainability goals.
Our Core Services
Together, these services enable clients to define, achieve and evidence meaningful sustainability outcomes across every RIBA stage.
How We Work
We don’t simply assess - we partner.
Our 90% repeat-business rate reflects the trust we build and the measurable results we deliver.
We focus on the most cost‑effective and impactful sustainability solutions, integrating our expertise early in the design process to maximise performance and value.
COMPANY VALUES
PEOPLE AND PLACE
DYNAMIC INNOVATION
COMMERCIALLY SENSITIVE
INTEGRITY, CLARITY & TRANSPARENCY
Who We Work With
We collaborate with clients who share our commitment to meaningful, responsible development - from commercial developers and public‑sector organisations to universities, healthcare providers, industrial operators and residential developers. With teams in Manchester and Oxfordshire, we support projects across the UK with specialist knowledge and hands‑on partnership.
Why It Matters
Sustainability is in our DNA. Since 2012, we’ve helped clients improve the environmental and social impact of their buildings, campuses and operations - reducing whole‑life carbon, enhancing wellbeing and future‑proofing investments. As the built environment continues to evolve, so do we - continuously innovating to remain at the forefront of sustainable design, assessment and advisory.
Frequently Asked Questions
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Mainer Associates is a UK‑based sustainability consultancy specialising in BREEAM, LCA, whole‑life carbon assessment, ESG advisory and environmental performance services across the built environment.
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We work across commercial property, public sector, education, healthcare, industrial, leisure, science and technology, and residential development.
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CarbonCentric is Mainer’s digital carbon management platform. Explore further by visiting www.carboncentric.io.
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We combine whole‑life thinking with early‑stage engagement, technical depth and commercial sensitivity - ensuring sustainability outcomes are achievable, cost‑informed and aligned with client objectives.
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Our teams are located in Manchester and Oxfordshire, supporting clients and projects across the UK.
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We offer BREEAM, LCA, EPDs, ESG advisory, Fitwel, EIA, carbon management, planning statements and whole‑life carbon assessments.