About Us

We work for you


To provide support to Clients and organisations to achieve their goals.


We are committed to supporting our Clients to operate efficiently and optimise the return for their time and investment using our experience and expertise and in doing so will aid the improvement and advancement of society and the environment.


Integrity, Collaboration, Trust

Integrow Consulting operates through the leadership of its founder and directors, John Mulcahy and Brendan Mullins with their combined global experience of over 65 years in design, construction, project management, bid management and client support in roads, water, planning, aviation and asset management.

We use strategic thinking and experience to structure your approach to competitive bids, project delivery and asset management in order to optimise your return. Managing, leading and responding to tenders is one of our key strength, reinforced with our extensive innovative design and project management experience to offer Clients a complete package.

Our experience in managing multidisciplinary teams across a wide project spectrum including structural, civil, M&E, process, aviation and compliance, supports you in your business decisions and contract delivery.

Integrow Consulting offer business reviews, organisation & strategy services as well as project oversight and management. If you are a start up looking for direction or an established organisation seeking clarity on a strategic decision we have the tools to clarify your way forward.

John Mulcahy, Managing Director

MIEAust CPEng NER, Chartered Professional Engineer

MBA, UCD Michael Smurfit Business School

MSc (Construction Project Management), WIT

BSc (Construction Management & Engineering), UL

Brendan Mullins, Director

MIEI, MICE, Chartered Engineer

MEngSc, University College Cork

BE(Civil), University College Cork

Dip. Business (Airport Business Management), IMI

Dip. Asset Management, IAM


Public Utility

Bid Management – Bid Writing – Design Management – Commercial Estimation – Bid Negotiations


Irish Water Capital Projects
  • Kerry Central RWSS DBO 54,000m3/d <€50m
  • Thurles WTP DBO 8,600m3/d <€20m
  • Leixlip WTP Filter Upgrade <€5m
  • Foxford, Charlestown and Killalla WWTP DBO Bundle <€20m

Irish Water Frameworks & Programmes
  • ECI Water & Wastewater Frameworks <€150m
  • National Major Process & MEICA Framework
  • National Minor Process & MEICA Framework
  • Flow Monitoring & Sampling Programme
  • Disinfection Programme


  • NI Water Capital Projects and Frameworks
  • Yorkshire Water – Pesticide Removal WTP
  • Affinity Water – HS2 Turbidity Treatment Contract

Private Sector

Bid Management – Bid Writing – Design Management – Commercial Estimation – Bid Negotiations

  • PDM Waste upgrade contract
  • Kerry Ingredients Filter Upgrade Contract
  • BioMarin Waste Water pH and Correction Upgrade Contract
  • Dawn Meats waste update DAF plant


Incorporation of a hydroelectric turbine into the design of the Kerry Central RWSS DBO Contract, dramatically reducing energy usage and the carbon footprint of the WTP. This was a significant factor in the award of the bid, strategically designed into the project and utilised for technical marks and financial benefits.

Designed for the use of solar power on the Thurles WTP DBO contract, dramatically reducing energy usage and the carbon footprint of the WTP.

Business Development

Over the past 10 years we have worked for businesses making them more efficient using our experience, planning and organisation tools and succeeding in digital transformation. We have been involved in developing business performance and models for:

  • Established Businesses
  • Start Ups
This has involved implementing and guiding companies through:
  • Operations reorganisation
  • Strategy mapping
  • Collaborative communication planning
  • Developing strategic KPIs aligned with company strategy and goals
  • Project and Portfolio Management
  • Integrated Management Systems (IMS)