You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
David O'NeillDO

David O'Neill

Transformation & Strategy Consultant | Ex-McKinsey

€2,199/day
United Kingdom, GB
15+ years

Average response time: 1 hour

About David

Transformation and Turnaround expert with ~20 years experience and track record of delivering over £3bn in profit and cash benefits. Experience across diverse range of sectors and spikes in cost optimisation, operating model transformation and cash improvements.

David is a Transformation and Turnaround expert, and former McKinsey and Deloitte partner. He has served as an interim Chief Transformation Officer and advisor, bringing a hands-on approach to partner with the C-suite/management to plan and implement value creation programmes on topics such as:
  • strategic options
  • cost optimisation
  • operating model redesign
  • headcount reduction
  • corporate restructuring and turnaround
  • product profitability, portfolio, and growth strategy
  • cash & working capital optimisation

He works with corporates (FTSE and mid-market) and private equity (PE) pre & post-deal and mid-cycle on:
  • strategic options and value creation planning
  • business and financial planning
  • business case preparation
  • problem-solving, financial modelling and analytics
  • activating and running PMO
  • stakeholder management
  • managing interdependencies
  • C-suite reporting
  • leading change, ensuring accountability, and creating a bias to action
  • leading weekly cadence of actions across the organisation to drive value realisation and benefits tracking
He has experience delivering significant and rapid value with companies in: consumer & retail, hospitality, medical devices, manufacturing, oil & gas, telecoms, business services, and financial services.
  • English

    Native or bilingual

Can work on-site
United Kingdom (up to 50km)

Experience

  • Modulaire Group
    Transformation Director
    PRIVATE EQUITY
    December 2024 - November 2025 (11 months)
    London, United Kingdom
    Transformation Director (interim) for Modulaire Group, a private equity (PE: Brookfield) owned ~€2bn global business with operations across 20+ countries and ~5,000 employees. ~€350m EBITDA impact.

    Key achievements include:
    • Creating transformation strategy to deliver ~€350m EBITDA benefits through growing existing and new markets, pricing optimisation, sales excellence, productivity gains, cost reduction (supplier negotiation, best country sourcing, demand management, supply chain), and op model redesign
    • Implementing ~€90m supplier cost reduction, beating plan by ~30% in first six months
    • Achieving ~€60m+ in-year EBITDA benefits in year 1
    • Integrating federated organisation, processes and tools following multiple acquisitions
    • Structuring transformation programme and TMO, aligning leadership, and mobilising organisation
    • Conducting bottom-up planning (benefits, costs, KPIs, execution plans, resourcing)
    • Configuring and implementing transformation tool to track the programme and measure benefits
    • Leading Transformation Office, running weekly cadence to drive execution of transformation plan
    • Providing hands-on support and problem solving to Exec team and workstream leaders
    • Leading Exec SteerCo, driving decision making, and Shareholder, Board and Exec reporting
    Transformation Management Office (TMO) Cost Reduction Strategic planning Change and Transformation Management
  • DELOITTE
    Partner
    CONSULTING AND AUDITS
    January 2023 - May 2024 (1 year and 4 months)
    London, United Kingdom
    Partner in Deloitte’s Performance Improvement practice leading high impact transformation and turnaround programmes, with a sharp focus on value creation planning and implementing profitability and cash benefits across commercial, cost and working capital levers. Worked with companies across retail, hospitality, oil & gas, business services, logistics and private equity

    Transformation and Turnaround
    • Transformation Director for a global energy company - prepared strategic options and value creation plan, optimised commercial contracts, restructured op model, and reduced 3rd party spend. Ran PMO to accelerate benefits delivery. $300m EBITDA and cash impact
    • C-suite advisor to PE hospitality business - prepared value creation plan, redesigned op model, optimised workforce processes, reduced spend, and integrated new business. ~20% EBITDA impact
    • C-suite advisor to PE business services company on designing and implementing optimised cash processes, management reporting, and skill building. ~40% working capital improvement

    Business building
    • Entrepreneurship: Generated ~£17m fees across two years; created and implemented Transformation & Turnaround business strategy (exceeding yr 1 revenue target by ~35%)
    • People: Mentored appraisee successfully towards promotion; sponsored D&I partnership candidates; led roll-out of new cost-out training programme
    • Practice: Launched cost and transformation tools, implemented knowledge management strategy
  • Mckinsey & Co
    Senior Vice President
    CONSULTING AND AUDITS
    January 2018 - September 2022 (4 years and 9 months)
    London, United Kingdom
    SVP in McKinsey’s Transformation practice leading complex, high impact transformation and turnaround programmes delivering over £2bn profit and cash benefits, and improvements to organisational health. Worked with companies across retail, consumer products, medical devices, chemicals, oil & gas, airline, real estate and private equity

    Transformation and Turnaround
    • Transformation Director for a FTSE global medical devices business - delivered value creation plan, new product launches, sales force expansion, operations efficiency and optimisation, organisation redesign, spend controls and 3rd party spend reduction. $280m EBIT impact
    • Transformation Director for a PE owned global energy company - delivered more focused customer, sales channel and operational footprint; together with a rightsized organisation structure. Facilitated C-suite meetings to drive success. €150m EBITDA and €250m cash benefits
    • Chief Transformation Officer for $300m consumer and industrial products manufacturer post acquisition - delivered new product and market strategy, re-pricing initiatives, manufacturing & warehousing efficiencies, and working capital quick wins. $67m EBITDA impact
    • C-suite advisor to a FTSE real estate business - prepared strategic options and value creation plan, and led implementation. £140m EBITDA impact

    Business building
    • Entrepreneurship: delivered ~£13m fees in last three years, created new cash proposition
    • People: Led cash training for ~1 k people globally, mentored D&I colleagues through promotion
    • Knowledge: Published articles on the role of the Chief Restructuring Officer and market trends

Recommendations

Be the first to recommend David

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • FCA
    Institute of Chartered Accountants
    2004
    Chartered accountant
  • Bachelor of Science
    University of Manchester
    2000
    BSc (Hons) | Management Sciences

Skill set

Categories