Our Story and Mission
Building a sustainable future for Birmingham businesses through expert guidance and practical solutions.
Who We Are
iris-manta was founded in 2009 by a team of energy engineers who recognised a critical gap in the market: many Birmingham businesses wanted to reduce their environmental impact but lacked access to practical, affordable guidance.
What began as a small consultancy operating from a shared office space in Digbeth has grown into one of the West Midlands' most respected sustainable energy advisory firms. We remain independent, which means our recommendations are never influenced by equipment suppliers or installation contractors.
Our approach combines technical rigour with commercial pragmatism. We understand that sustainability initiatives must make business sense, delivering measurable returns alongside environmental benefits.
Our Values
The principles that guide every engagement.
Independence
We maintain no partnerships with equipment manufacturers or installers. Our advice is based solely on what is best for your organisation.
Transparency
Every recommendation comes with clear reasoning, realistic timelines, and honest assessments of potential challenges.
Practicality
Theoretical perfection matters less than achievable improvement. We focus on solutions that work within your constraints.
Local Commitment
Birmingham is our home. We are invested in the success of the regional economy and its transition to sustainable operations.
Our Journey
Foundation
Three engineers establish iris-manta in Digbeth, focusing on energy audits for small manufacturers.
Expansion
Team grows to eight consultants. Launch of renewable transition planning services.
Recognition
Awarded West Midlands Sustainability Business of the Year. Office moves to Colmore Row.
New Services
Introduction of carbon footprint assessment and sustainability strategy development.
Present Day
Supporting over 230 active clients across Birmingham and the wider region.
Meet Our Team
Experienced professionals dedicated to your sustainability goals.
David Thornton
Managing DirectorCo-founder with 22 years in energy engineering. Previously led sustainability programmes at a major utility provider.
Sarah Mitchell
Head of Technical ServicesCIBSE-certified building services engineer specialising in commercial HVAC optimisation and renewable integration.
Robert Okonkwo
Senior Energy ConsultantExpert in industrial energy management with particular focus on manufacturing sector efficiency improvements.
Ready to Start Your Sustainability Journey?
Discover how our expertise can benefit your organisation.