Mortimer Isaacs

What Mortimer Isaacs does

Mortimer Isaacs LLP is a London-headquartered construction consultancy founded in 2006 by Alan Isaacs. The firm delivers three integrated service lines — Quantity Surveying, Project Management, and Principal Designer/Health & Safety — covering the full project lifecycle from feasibility through to completion, with specialist capabilities including M&E quantity surveying, forensic quantity surveying, sustainability option engineering, and insurance-related work. There is no proprietary technology platform; service delivery is human-practitioner-led and project-based.

The firm serves enterprise clients across four primary verticals: education (including Imperial College London, King's College London, LSE, Goldsmiths, University of Surrey, University of Cambridge, and Ardingly College), healthcare (University College London Hospitals NHS Foundation Trust, Royal Marsden NHS Foundation Trust, Imperial College Healthcare NHS Trust, Moorfields Eye Hospital), housing associations (Hightown, Sentinel, Hastoe), and commercial/retail. Revenue is generated through competitive tendering and framework agreements, with approved-supplier status on the NHS London Procurement Partnership DPS (since 2021) and the Constellia procurement platform (since August 2025).

The business is a privately held UK Limited Liability Partnership, founder-managed, with no disclosed external funding, M&A activity, or parent company. Growth to date has been entirely organic, driven by repeat commissions and client referrals. The firm holds ISO 9001, ISO 14001, RICS membership, Constructionline, Acclaim H&S, and Future Net Zero Standard certifications, which collectively serve as procurement prerequisites for public-sector frameworks. Operating geography is concentrated in London, South England, and Eastern England.

Name

Mortimer Isaacs

Legal name

Mortimer Isaacs LLP

Website

https://mortimerisaacs.co.uk

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

1–10 employees

Short description

Mortimer Isaacs LLP is a London-based construction consultancy founded in 2006, delivering Quantity Surveying, Project Management, and Principal Designer/Health & Safety services to universities, NHS trusts, housing associations, and commercial clients across the UK through public-sector framework agreements.

Ownership category

akta.pro rank

Product category

Construction Consultancy

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

Keywords

• Construction consultancy
• Quantity surveying
• Project management
• Principal designer
• Health and safety

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Professional Consultancy Services: Mortimer Isaacs generates revenue through providing professional construction consultancy services including Project Management and Quantity Surveying. Services are typically delivered on a project basis through competitive tendering or framework agreements with clients.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Mortimer Isaacs is a UK construction consultancy providing Project Management, Quantity Surveying, and Principal Designer/Health & Safety services. The firm delivers end-to-end construction consultancy from feasibility through completion for enterprise clients in the education, healthcare, housing, and commercial sectors, with specialist capabilities including M&E quantity surveying, forensic quantity surveying, sustainability option engineering, and employer agent roles.

Product overview

Mortimer Isaacs is a construction consultancy providing three integrated service lines: Quantity Surveying, Project Management, and Principal Designer/Health & Safety. These services work together to deliver end-to-end project support from feasibility through to completion, covering cost management, programme adherence, and regulatory compliance. The firm also offers specialist capabilities including M&E quantity surveying, forensic quantity surveying, sustainability option engineering, and insurance-related services.

Differentiator

Problem solved

Functional benefit

Products and services

• Quantity Surveying Comprehensive quantity surveying services for construction projects covering project quantity surveying, feasibility studies, sub-contractor package management, option appraisals, contract claims, M&E quantity surveying, technical reports and audits, whole life cycle costs, forensic quantity surveying for loss adjusters, capital allowance advice, sustainability option engineering, insurance valuation works, and insurance claims. Delivered to enterprise clients across education, healthcare, housing, and commercial sectors.
• Project Management End-to-end construction project management services including project management, employer's agent, development monitoring, contract administration, regeneration management, construction management, and clerk of works roles to oversee construction project delivery from inception through completion. Designed for university estates, NHS trusts, housing associations, and commercial developers undertaking new builds, refurbishments, and specialist installations.
• Principal Designer / Health & Safety Principal Designer appointments, advice and support on HSE regulations, health & safety consultancy, health & safety audits, seminars, and training to ensure compliance with construction health and safety requirements under CDM regulations. Delivered to enterprise clients undertaking construction projects.

Named customers14 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core.

• ConstelliacoreChannel Partner/ Reseller/ Distributor · 1 August 2025Mortimer Isaacs is an approved supplier on the Constellia platform, committed to delivering excellence and ensuring a smooth procurement process for valued clients.
• NHS London Procurement PartnershipcoreChannel Partner/ Reseller/ Distributor · 1 June 2021Mortimer Isaacs was accepted onto the NHS LPP Estates & Facilities Consultancy Services Dynamic Purchasing System (DPS) for Construction Project Management Services and Quantity Surveying & Cost Consultancy Services. This framework enables them to be considered for NHS healthcare projects across London.
• The Royal Marsden NHS Foundation TrustcoreImplementation/ SI/ Consulting Partner · 1 June 2021Mortimer Isaacs secured a 4-year framework agreement with Royal Marsden NHS Foundation Trust following an extensive OJEU process. First commission was Project Management on a £2m PET CT scanner installation.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Arcadis: Global design, engineering, and consultancy firm with significant UK construction advisory practice. Competes for public sector construction consultancy work as part of wider portfolio.
• WSP: Global engineering professional services firm with construction cost management capabilities serving public sector clients. Competes for major framework commissions but specializes more in engineering than pure QS.
• AECOM: Global infrastructure and construction services firm offering cost management and project management as part of a broader engineering and design portfolio. Competes for large NHS and university frameworks but serves much wider scope.
• Capita Property & Infrastructure: Large UK property and infrastructure consultancy serving public sector clients with construction project management and QS services. Broad incumbent competing across NHS, education, and central government work.

Direct peers

• Ridge and Partners: UK construction and property consultancy offering project management, cost consultancy, and building consultancy. Direct competitor for higher education and healthcare projects with similar mid-market positioning.
• Pick Everard: UK construction consultancy providing project management, quantity surveying, and advisory services across public sector clients including education, healthcare, and housing. Comparable mid-sized peer.
• Currie & Brown: UK-headquartered construction consultancy specializing in project management and quantity surveying for public and private sector clients, including healthcare and education. Direct competitor for the same framework work Mortimer Isaacs targets.
• Gleeds: International construction consultancy with strong UK presence providing quantity surveying, project management, and advisory services across healthcare, education, and residential sectors. Comparable mid-tier competitor.
• Turner & Townsend: Global construction consultancy offering cost management and project management across real estate, infrastructure, and natural resources. Competes directly for large NHS, university, and housing association commissions.
• Baqus Construction Consultancy: UK-focused construction consultancy specializing in quantity surveying, project management, and employer agent services for residential, education, and public sector clients. Similar mid-sized UK peer with overlapping client base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/mortimer-isaacs-consultancy

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mortimer Isaacs