Christian McMahon FBCS CITP founded three25 to provide his services as a Board-level CIO | CTO | CTrO | PE Advisor | Chair | NED – proven track record of landing complex transformations and technology modernisation programmes, driving exceptional value creation, and aligning digital, data, and technology strategy with business objectives across multiple sectors.
He is highly skilled in guiding organisations through the necessary changes for securing the maximum value from technology investments.
Christian has first class delivery credentials on a global scale including:
- Value creation accelerator – consistently moving the EBITDA needle, unlocking revenue growth, transforming business models and creating competitive advantages that drive higher exit multiples. Experienced in scaling tech across multiple business units with a proven track record of ROI within 12 months in PE-backed environments
- Transformation leader – hands-on leader who can shape, coordinate, and deliver transformation initiatives end-to-end. Delivered £mm programmes spanning ERP, CRM, HCM, AI, data & back-office platforms, cross-functional technology initiatives and cybersecurity; adept at moving from strategy to consistent execution at pace, navigating complexity, gaining buy-in, keeping momentum and embedding sustainable change
- Trusted advisor – bring an engaging blend of deep technical expertise and strong commercial acumen, translating complex technology into clear business value at Board level. Capable of driving clarity in complex environments, not afraid to lean into the uncomfortable and step up where others step back
- Business-outcome focused – constantly maximising ROI by reimagining business models, building capability, creating new digital value propositions, and deploying AI capabilities that accelerate growth and operational efficiency
- Resilient change agent – skilled in overcoming resistance, setbacks, and competing priorities to ensure transformation initiatives deliver intended outcomes and measurable benefits realisation
- Cultural dexterity & collaboration – experienced at engaging stakeholders across complex organisational structures and leading multiple, simultaneous enterprise-wide work-streams; able to build trust quickly and influence decision-makers from the Board to the frontline
- M&A expertise – extensive transaction experience including carve-outs, TSA exits, divestments, and post-merger integrations, maximising deal value while mitigating risk
- ERP, CRM & HCM delivery – led end-to-end implementations of NetSuite, Salesforce, MS D365 (F&O, CE, SCM & Manufacturing), QAD unlocking significant business value across diverse industries
- Leadership advisor & team builder – strong motivational leader with high EQ/IQ, finely tuned interpersonal and communication skills with ability to communicate with authenticity to any audience.
Christian has a number of portfolio roles including:
Non-Executive Chair of ITSO Ltd where we have built Yotra and partnered with Apple and Google as their sole UK partner in digital wallet ticketing, pioneering secure, touch-free mobile ticketing across rail, bus and tram networks. Designing and deploying next-generation transit ticketing solutions, enhancing the passenger experience for millions of UK commuters through seamless integration with Google Pay and Apple Wallet. Advancing the UK’s transport and financial technology ecosystem, blending expertise in digital payments, mobile solutions, and national infrastructure modernisation.
We’re also collaborating with the Bank of England as a Phase 1 participant in the Digital Pound Lab, contributing to national experimentation on the future of digital currency and payments infrastructure.
Transformation and Technology Advisor at Inflexion where he supports the Inflexion investment teams, providing Transformation and Technology advisory services to their portfolio companies and leadership teams.
Christian was appointed Chair of the Gambling Commission’s Digital Expert Panel (DEP), leading a team of digital and AI specialists providing independent advice to the Gambling Commission Board and Executive Group. As Chair of the DEP, I have quarterly strategy reviews with the GC CEO and Chair, helping shape the Commission’s digital, data and AI strategy for the UK’s £16bn regulated gambling industry:
- Directing advisory input on emerging digital and AI trends, influencing how operators interact with consumers and how the Commission regulates the market
- Delivering Board-level recommendations that strengthen regulatory oversight, support safe innovation, and increase organisational capability in AI, data and digital solutions
- Working closely with the secretariat and senior leadership to refine DEP’s role, ensuring advice directly adds value to policy direction, regulation and market engagement
Director at Ashburn Taylor, specialists in the successful delivery of complex IT and business transformation programmes including leading ERP implementations from RFP to successful implementation. Current projects include helping deliver an MS Dynamics 365 Finance & Supply Chain Management implementation and other strategic technology programmes for a well known retailer with 60+ shops across the UK and ROI.
He is a highly respected CIO/CTO and Digital ‘thought leader’ with significant social influence who has forged strong relationships with the worlds leading firms, advising them on shaping their marketing, technology, product and digital strategies to better engage with and add value to their clients.
EXAMPLES OF CURRENT AND SUCCESSFULLY COMPLETED ASSIGNMENTS
Ashburn Taylor – Managing Partner:
Specialists in the successful delivery of complex IT and business transformation programmes including leading ERP implementations from RFP to successful implementation.
Current projects include helping deliver an MS Dynamics 365 Finance & Supply Chain Management implementation for a well known retailer with 60+ shops across the UK and ROI.
Inflexion – Transformation and Technology Advisor:
Supporting Inflexion investment teams and providing Transformation and Technology advisory services to their portfolio companies and leadership teams.
Hired by LSL Properties plc – generated £45 billion of mortgage completions in 2022:
• Operated mainly in the Financial Services Division that generated £45 billion of annual mortgage completions in 2022 – this represents approximately 10% of the total UK purchase and remortgage market with around 2,900 financial advisers
• Reviewed group IT functions including current capability, strategy, sourcing, systems, resource, ops
• Board level advisory services on technology strategy & roadmap including new IT Operating Model
• Led full technology M&A lifecycle including integration for a major acquisition & new digital assets
• Managed RFP & re-platforming of infrastructure to Amazon AWS with fully managed security service
• Procured new operating platform; led gap analysis & specified dev plan to make it fit for purpose
• Managed the software development programme & reengineering of the newly acquired platform
• Led client side requirements gathering including presentations, workshops & ongoing interaction
• Drove commercial discussions with leading industry vendors & clients on platform integration
• Built suite of API’s that allows platform integration with vendor platforms & client operational systems
Hired by Countryside Partnerships plc to deliver a group wide business transformation including core systems replacement, technology modernisation and business process change:
Responsible for the people and strategic direction of the whole change portfolio, with key focus on delivery assurance, governance framework and being the main driver of the transformation to the plc board and business leaders.
A key component of modernising the IT estate was migrating to MS Dynamics 365:
– Finance & Supply Chain Management implemented Nov 21 within 18 months fully remotely during Covid
– ERP Manufacturing implemented Jun 21
– Informatica IICS platform delivering reliable business-critical data to D365 through system integrations with our ODS implemented Nov 21
– CE Sales/Marketing/Customer Service 1st phase implemented Nov 22
Other delivered projects & strategies continuously improved were:
– Data strategy that converts data from a docile liability into a business asset including better understanding our data landscape & utilising it as a capability to drive change
– Manufacturing digital transformation: Simpler house type designs, faster erection times onsite & reduced fees
– Xpedeon ERP platform for materials procurement, contract management & CVRs
– Integrating previously acquired businesses
– Power BI reporting
– Zero trust cyber-security approach & threat detection
– Anaplan: Planning, “what-if” scenario modelling, development appraisals, forecasting and consolidation
– Moved IT infrastructure to externally hosted environment – robust scalability, full DR wrapper & reduced risk profile
– New QA platform: Improved subcontractor/defect management & increased visibility/analytics
– RingCentral implementation across all offices/sites
– Portal providing real time tracking & input of ESG data
– New legal software across the group
– New WAN provider across all offices/sites
All projects were driven by an IT PMO with a robust governance wrapper to better manage projects & reporting required to implement solutions to achieve intended business outcomes.
We can help you right now – info@three25.com