About Us

Who We Are
At RedSix, we are specialists in sustainability consultancy, guiding projects of all sizes to meet ambitious environmental goals. With extensive experience across education, retail, residential, leisure, and commercial sectors, we help clients navigate the complexities of sustainability with honest, practical, and commercially sound advice.
Our expert team delivers BREEAM, Net Zero Carbon, Whole Life Carbon, and ESG consultancy, ensuring your project achieves its sustainability objectives while remaining cost-effective and efficient. Whether you need full sustainability assessments, project coordination, or compliance guidance, we provide tailored solutions that drive measurable impact.
Accreditations That Set Us Apart
At RedSix, our accreditations are a reflection of our dedication to excellence, credibility, and staying ahead in a fast-evolving industry. We are proud to be recognised by leading industry bodies, with certifications that demonstrate our technical capability, commitment to best practice, and trusted status within the UK’s sustainability sector.
From BREEAM and Carbon Literacy to our unique position as one of Wales’ only AECB CarbonLite certified independent consultants, we offer clients peace of mind that their projects are in the hands of qualified professionals. These accreditations not only strengthen our service offering, they also open doors for our clients to meet pre-approved credits, improve environmental performance and gain third-party recognition for their sustainability efforts.












Our Values
At RedSix, our values aren’t just words, they’re the foundation of how we work, how we lead, and how we build trusted relationships. They shape every project, partnership, and conversation, ensuring we deliver sustainability consultancy with integrity and impact.
Humility
We’re always learning. We approach each project and client with an open mind, valuing collaboration over ego and putting outcomes before accolades.
Integrity
Doing the right thing is non-negotiable. We hold ourselves to the highest ethical standards and deliver advice that’s always in the best interest of our clients, communities, and the planet.
Collaboration
We believe sustainability is a team effort. At RedSix, we work with you, not around you. Our consultants embed seamlessly into project teams, offering support without adding hurdles.
Experience
Our team brings decades of combined experience across sustainability, compliance, and consultancy. We know what works, what doesn’t, and how to tailor solutions that drive real results.
Reliability
We do what we say we’ll do. Clients trust us because we’re dependable, detail-oriented and consistent, no matter the scale or complexity of the project.
Progression
We’re future-focused. From embracing the latest certifications to championing innovation in sustainability, we continuously evolve, so our clients can stay ahead of industry change and environmental responsibility.
Reasons to Partner with Us
We’re not just sustainability consultants – we’re strategic partners committed to helping you deliver high-performance, future-ready buildings.
Here’s why clients across the UK choose RedSix:
Industry Leading Expertise
Seamless Support at Every Stage
Tailored, Commercially Sound Solutions
Meet the team
At RedSix, our strength lies in our people. We’re a team of passionate sustainability professionals, accredited experts, and creative problem-solvers committed to shaping a greener built environment. With diverse backgrounds and a shared mission, we collaborate closely with clients to deliver innovative, commercially sound solutions that make a lasting impact. Get to know the specialists behind our success.