London / GMTBirmingham / GMTNew York / ESTDubai / GST
RICS · 864584EST. 2008
Quantem
About

Independent. By choice.

Control, manage and plan construction projects to improve cost effectiveness, reduce risk and secure value.

Founded
2008
Headcount
100+
RICS
864584
Co. Number
06404786
Principles

Four tenets we will not move from.

01

Independent

Free of holding-group conflicts of interest, listing pressures and quarterly earnings cycles. Our clients are our only constituency.

02

Hands-on

Every project is partner-led, day-to-day. There is no junior-to-senior gap on our delivery — only a partner who knows the project intimately.

03

Forensic

Cost is a discipline, not an estimate. We benchmark, peer-review and underwrite — and we are willing to be argued with.

04

Honest

We tell our clients what we believe, even when it is unwelcome. The relationship is more valuable than the conversation.

History

Eighteen years.

2008
Quantem founded in central London
2012
Birmingham office opens
2015
Stephen Street wins BCO 2015 National Award
2018
Net Zero Carbon Action Plan adopted
2020
ISO 14001 certification awarded
2021
New York office established
2023
Dulwich College Net Zero scheme on site
2025
Dubai office opens · 100+ headcount
2026
Q1 2026 — RICS Responsible Business Framework adopted
In their words

A proactive approach to cost management during the pre-construction phase.

Derwent London
REIT
Begin a conversation

Tell us where you're going.

From RIBA 0 viability to final account — our partners are ready to take the call.