GUIDING YOUR PROJECTS TO SUCCESS
EXPERT ADVISORY ON
INFRASTRUCTURE PROJECTS
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Alistair Aitken
OWNER & DIRECTOR
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Andrew Neale
LEAD ADVISOR
GUIDING YOUR PROJECTS TO SUCCESS
TAG ADVISORY: YOUR TRUSTED PROJECT PARTNER
TAG Advisory was founded by Alistair Aitken, a seasoned quantity surveyor and project advisor. Established in January 2023, TAG Advisory has quickly gained a reputation for providing precise, independent, and impartial advice across the infrastructure sector. With extensive UK and international experience, Alistair brings unparalleled expertise and a hands-on approach to every engagement. His leadership roles and contributions to major government projects underline TAG Advisory's commitment to strong project outcomes. We collaborate with a network of like-minded professionals to deliver meticulous planning, cost management, and strategic advisory services. Our boutique consultancy upholds the highest standards of excellence and integrity, providing personalised solutions tailored to each client's specific needs.
20+ Years Experience.
Extensive industry-leading expertise.
Reputation-Driven.
Trusted by numerous satisfied clients.
Boutique Consultancy.
Personalised and focused client attention.
Specialised Expertise.
High-profile project experience and knowledge.
GUIDING YOUR PROJECTS TO SUCCESS
EXPLORE OUR
EXPERTISE IN ACTION
Hover over each element to learn more about how TAG Advisory's comprehensive services help infrastructure projects succeed. From planning and engineering to cost management and quality assurance, this interactive experience demonstrates our dedication to excellence and innovation in all aspects of project delivery.
YOUR PARTNER IN PROJECT SUCCESS
COMPREHENSIVE PROJECT
ADVISORY SERVICES
ADVISORY
SERVICES:
Our Advisory Services provide strategic advice and expert consultation in business management, contract advisory, dispute resolution, expert witness testimony, financial certification, and independent certification.
ASSET VALUATION
CONTRACT ADVISORY
DISPUTE RESOLUTION
EXPERT WITNESS
INDEPENDENT CERTIFICATION
REPLACEMENT COST ESTIMATE
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COST
MANAGEMENT:
Our Cost Management services offer precise financial oversight via detailed bills of quantities, cost estimating, independent estimating, peer review, probabilistic estimating and project financial forecasting.
BILL OF QUANTITIES
COMMERCIAL ADVISORY
CONTRACT ADVISORY
COST ESTIMATING
INDEPENDENT ESTIMATOR
VARIOUS
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DIVERSE INDUSTRIES WITH EXPERT SOLUTIONS
THE SECTORS
WE SERVE
Hover over each element to learn more about how TAG Advisory's comprehensive services help infrastructure projects succeed. From planning and engineering to cost management and quality assurance, this interactive experience demonstrates our dedication to excellence and innovation in all aspects of project delivery.
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Marine and Ports Sector:
Providing specialised management and advisory services for marine and port infrastructure, enhancing capacity and operational performance.

Mining and Resources Sector:
Offering comprehensive project management and advisory services for mining and resource developments, ensuring efficiency and environmental compliance.
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Public Realm Sector:
Enhancing public spaces through meticulous planning and management, creating functional and aesthetically pleasing environments for communities.
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Transport Sector:
Delivering strategic advisory and management services for transport infrastructure projects, improving connectivity and efficiency through innovative solutions.

Energy Sector:
Offering expert guidance and management for energy sector projects, driving efficiency and sustainability in energy production and distribution.

Industrial Sector:
Delivering tailored advisory services for industrial projects, optimising productivity and operational efficiency through strategic planning.
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Civil Infrastructure Sector:
Providing comprehensive advisory and management services for civil infrastructure developments, resulting in improved project outcomes through meticulous planning.
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Defence Sector:
Ensuring robust and secure project management solutions for defence infrastructure, prioritising safety and compliance in all aspects.
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Aviation Sector:
Providing strategic insights and management for aviation infrastructure projects, enhancing operational efficiency and capacity.
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Bridges and Structures Sector:
Delivering expert advisory and management services for bridge and structural projects, ensuring safety and longevity through innovative engineering solutions.
OUR EXPERIENCE AND CLIENTS
TRUSTED BY LEADERS
IN INFRASTRUCTURE
TAG Advisory has worked with state governments and major corporations on high-profile infrastructure projects. Our dedication to excellence and strategic thinking have earned us the trust of our valued clients.
SHOWCASING OUR SUCCESS STORIES
TAG ADVISORY
PROJECT CASE STUDIES
COST ESTIMATING & COMMERCIAL SERVICES
MAIN ROADS WESTERN AUSTRALIA
ROAD AND BRIDGE PROJECT MANAGEMENT
MAIN ROADS WESTERN AUSTRALIA
MITCHELL FREEWAY PSP
MAIN ROADS WESTERN AUSTRALIA
GREAT EASTERN HIGHWAY BYPASS
GREATER CONNECT ALLIANCE
BUNBURY FAST RAIL
PUBLIC TRANSPORT AUTHORITY OF WESTERN AUSTRALIA
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COST ESTIMATING & COMMERCIAL SERVICES
The Cost Estimating & Commercial Services project, carried out for Main Roads Western Australia, aimed to provide precise financial oversight and strategic commercial advice for a variety of infrastructure projects. This initiative sought to ensure budgetary compliance and maximise project profitability.
HEAR WHAT OUR CLIENTS SAY
TAG ADVISORY CLIENT COMMENDATIONS

“Alistair and his team have consistently delivered their cost estimation services for the projects we have been involved in a prompt, professional and highly collaborative manner. Their cost estimates are of a very high standard, and they approach each project in a highly proactive manner and always in the best interests of the client. They have also provided valuable input with respect to value management where appropriate.”
Andrew Ainsworth
CONIGLIO AINSWORTH ARCHITECTS DIRECTOR

"I have regularly sought Alistair’s input on many diverse and complex projects over the last 10 years and have always been highly impressed by his professional approach, insightful advice, and dedication to delivering a high-quality product for my clients across a diverse range of projects and sectors in Western Australia. I would highly recommend TAG’s involvement on future projects."
Mark Johnston
SMEC EXECUTIVE – MAJOR PROJECTS

“Alistair has provided estimating and quantity surveying services to the Bayswater Project on an ongoing basis and delivers a good level of service.”
Jonathan Shuker
DELIVERY MANAGER – BAYSWATER STATION AND TURNBACK

“Working with TAG Advisory was a game-changer for our transport project. Their strategic insights and professional approach were instrumental in overcoming the numerous challenges we faced. The team's deep industry knowledge and ability to foresee potential issues helped us stay ahead of schedule and within budget. They were always available to answer questions and provided detailed explanations and solutions that were both innovative and practical. TAG Advisory’s expert guidance and unwavering support were key factors in delivering exceptional results. Highly recommended for any complex infrastructure projects.”
Luke Harris
ALLIANCE FINANCE MANAGER - MELCONNX