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Unlock the full potential of your real‑estate & facilities management operations
As Chartered Environmental Surveyors, at DIEM Ltd we bring together FM and real estate expertise, ESG leadership and ISO‑aligned operational systems to help you run safer, greener and more efficient buildings across the UK and worldwide.
Our mission is simple: to elevate the performance of your properties, strengthen compliance, and deliver lasting operational value.
What Makes DIEM Ltd Different?
✔ Real Estate & FM Expertise That Works in the Real World
✔ ESG & Sustainability Empowering Better FM
✔ ISO Systems That Build Trust and Strengthen Governance
We deliver ISO‑aligned operational systems across real estate and FM, including:
These frameworks help you reduce risk, streamline operations and demonstrate world‑class management.
Expert training and support for RICS APC candidates including "APC Expert Webinars".
As Chartered Environmental Surveyors, at DIEM Ltd we bring together FM and real estate expertise, ESG leadership and ISO‑aligned operational systems to help you run safer, greener and more efficient buildings across the UK and worldwide.
Our mission is simple: to elevate the performance of your properties, strengthen compliance, and deliver lasting operational value.
What Makes DIEM Ltd Different?
✔ Real Estate & FM Expertise That Works in the Real World
✔ ESG & Sustainability Empowering Better FM
✔ ISO Systems That Build Trust and Strengthen Governance
We deliver ISO‑aligned operational systems across real estate and FM, including:
- ISO 9001 (quality)
- ISO 14001 (environmental)
- ISO 50001 (energy)
- ISO 45001 (health & safety)
- ISO 42001 (artificial intelligence)
- ISO 41001 (facility management)
- ISO 37001 (anti-bribery)
These frameworks help you reduce risk, streamline operations and demonstrate world‑class management.
Expert training and support for RICS APC candidates including "APC Expert Webinars".
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DIEM Ltd is a trading name of David Inman Environmental Management Ltd
Registered in England and Wales Number 5594176
©2005 - 2026 DIEM Ltd
Registered in England and Wales Number 5594176
©2005 - 2026 DIEM Ltd