Strategic & Commercial Leadership for Complex Capital Programmes
Delivering clarity, direction, and measurable value on the world's most demanding projects
ABOUT EFFECTUS
Architecting Value on a Global Scale
Effectus Construction Services is led by John Lohan, an executive leader with over 30 years of experience shaping and executing multi-billion-pound commercial, procurement, and operational strategies across infrastructure, energy, and construction.
We work with clients who face high-stakes challenges on complex capital programmes - where the margin between success and failure is measured in hundreds of millions. Our approach combines deep sector knowledge with commercial rigour and a relentless focus on outcomes.
From nuclear new-build and giga-scale logistics to business turnarounds and digital transformation, Effectus brings the strategic clarity and hands-on expertise that complex programmes demand.
To give our clients confidence and control in complex environments by providing joined-up services that safeguard value, reduce risk, and drive results.
MSc (King's College London) | MRICS | MCIArb | MCIPS | MAPM | Oxford Said AI Programme

John F. Lohan
Managing Director
Integrity
Trusted, transparent, and principled in everything we do.
Innovation
Applying modern methods and digital tools to unlock performance.
Client Focus
Shaping services around each client's unique challenges and goals.
Excellence
Executing with rigour, accountability, and measurable results.
WHAT WE DO
Services
Commercial Direction
Strategic commercial leadership for complex programmes. We establish governance frameworks, cost management systems, and contract strategies that protect value and drive performance from day one.
Project Execution & Control
Hands-on delivery leadership for programmes under pressure. We bring rigour to schedule, cost, and risk management - turning distressed projects into controlled, predictable outcomes.
Strategic Intervention
Rapid diagnostic reviews and turnaround strategies for programmes that have lost direction. We identify root causes, restructure commercial arrangements, and restore stakeholder confidence.
Design & Delivery Systems
Integrating design for manufacture, off-site methods, and digital delivery to accelerate programmes. We connect design intent with buildability, reducing waste and compressing timelines.
Supply Chain & Logistics
End-to-end supply chain strategy for large-scale construction and manufacturing operations. From greenfield logistics design to procurement transformation, we build systems that scale.
HOW WE WORK
Our Approach
We don't just advise - we design and deliver solutions that stand up to scrutiny, protect your interests, and create lasting success.
Diagnose
We assess the situation rapidly - commercial position, delivery risk, governance gaps, stakeholder alignment.
Design
We develop a targeted strategy with clear objectives, measurable outcomes, and practical implementation steps.
Intervene
We embed with your team and execute. Hands-on leadership, not advisory reports that sit on shelves.
Transfer
We build capability and systems that endure beyond our engagement. Sustainable improvement, not dependency.
RESULTS THAT SPEAK
Track Record
Savings delivered at Battersea Power Station
Green energy pipeline led at ABP
Admin cost reduction at Hinkley Point C
Delivery timescale reduction at GSK
Years of executive leadership
CASE STUDIES
Our Work
SECTORS
GET IN TOUCH
Let's Talk
Whether you are facing a complex delivery challenge, need commercial leadership on a major programme, or want a strategic review of your current position - we would welcome the conversation.