About us
Deep business-case expertise, made usable at scale.
Business Case Guru was founded by Stefan Sanchez and Fiona Waters, who bring more than 55 years of combined experience in investment appraisal, business-case development and review, and accredited training.
Our experience
Practitioner credibility, proven at scale.
The BCG team has delivered successful, high-impact business cases across the UK and internationally, and equipped organisations with expert business-case training.
Building practical Five Case Model capability across organisations.
Developed, reviewed or assured across projects and programmes.
Supporting robust decisions on significant public and institutional investment.
Breadth of experience
From national policy to local delivery.
- Central government — His Majesty’s Treasury; Ministry of Housing, Communities and Local Government; Department for Business, Innovation, Science and Trade; Department for Culture, Media and Sport
- Local and regional government — Combined authorities and councils including Fife Council, Powys County Council, Cardiff Council and Newport City Council
- Research and innovation — Arts and Humanities Research Council; Biotechnology and Biological Sciences Research Council; independent research organisations including the James Hutton Institute
- Health — National Health Service organisations; Medicines and Healthcare products Regulatory Agency
- Arm’s-length bodies — United Kingdom Space Agency; Nuclear Decommissioning Authority; Ordnance Survey
- City deals — Swansea Bay City Deal; Tay Cities Deal
- Education — University of Dundee; University of South Wales; Coleg Gwent
- Private sector — Mutual organisations and property developers
- Charities and community enterprises — Charitable incorporated organisations and community interest companies
Trusted by clients and peers
Credibility earned through delivery.
Independent testimony to the expertise behind Business Case Guru.
“I have worked closely with Stefan for over fifteen years, including developing the accredited Five Case Model training programme together, and his knowledge and understanding of the 5CM is genuinely second to none.Joe FlanaganAuthor of the Five Case Model
He is an outstanding trainer and practitioner who makes complex business case concepts accessible at every level.”
“Fiona brings a rare combination of rigour and pragmatism to business case development. She translated complex, uncertain R&D impacts into a clear and defensible economic case — particularly where benefits were difficult to monetise.Laura PartridgeAssociate Director, Arts and Humanities Research Council
She was collaborative, responsive, and able to move teams forward at pace.”
Shaping the standards we work by
Experience behind the Five Case Model itself.
Business Case Guru’s Co-Founder and Chief Executive Stefan Sanchez contributed to the development of the Better Business Cases guidance as a UK civil servant, working closely with Dr Joe Flanagan. His focus was on translating HM Treasury Green Book principles into practical, usable guidance that could be applied consistently across government.
He also supported the design and rollout of the original accredited Better Business Cases training programme, helping to embed the framework across departments and build consistent, evidence-based business-case capability.
Our people
Led by experienced business-case practitioners.
Stefan and Fiona founded BCG and lead its strategy, product, commercial delivery and client work. Their combined experience is supported by a wider team of specialists and advisers.
Stefan Sanchez
Co-Founder & Chief Executive
Stefan leads the company’s strategy, partnerships and product vision, combining deep expertise in investment appraisal with an understanding of how digital tools can transform public-sector decision-making. His focus is on simplifying business-case development so clients can concentrate on strategic choices, evidence and stakeholder engagement rather than the mechanics of documentation.
LinkedIn ↗
Fiona Waters
Co-Founder, Finance & Operations
Fiona leads commercial strategy, financial governance and operational delivery, translating decades of applied economic-appraisal practice into scalable digital products. She ensures that option appraisal, cost-benefit analysis, value for money, place and sustainability assessment are embedded in the platform without compromising analytical rigour or transparency.
LinkedIn ↗Wider team and advisers
Specialist expertise, clearly delegated.
Communications, governance, digital transformation, AI, training and Five Case Model expertise support the founders as BCG grows.
Ciara Savage
PR & Communications Lead
Ciara leads Business Case Guru’s communications and media presence. She manages media strategy across social media, events and website development, strengthening BCG’s visibility and engagement with public-sector, institutional and professional audiences.
LinkedIn ↗
Masatake Toyota
AI Marketing & Media Adviser
Masatake advises the Board on AI marketing and media, bringing strategic consultancy experience, digital innovation and AI-led commercial insight. Drawing on senior experience including KPMG, he helps translate advanced AI capability into practical brand strategy, audience engagement and scalable growth.
LinkedIn ↗
James Carnie
Advisory Board Member
James brings expertise in digital transformation, cloud strategy and commercial growth. As Director of Mobilise Cloud Ltd, he combines technical depth with strategic business insight, supporting BCG’s growth, partnerships and technology-enabled vision.
LinkedIn ↗
Lewis Weatherall
Business Case Adviser
Lewis brings more than 29 years of public-sector expertise, practitioner training and business-case quality assurance. An APMG International-registered Better Business Cases Practitioner and approved trainer, he led the initial development of Better Business Cases guidance in New Zealand and has trained more than 3,000 practitioners globally.
LinkedIn ↗
Chris Marshall
Non-Executive Director
Chris brings expertise in operational leadership, financial management and strategic business transformation. With senior experience across multinational organisations and SMEs, he provides commercial discipline, governance oversight and independent challenge as BCG scales.
LinkedIn ↗
Dr Joe Flanagan
Special Adviser to the Board
Joe brings exceptional authority in public-sector investment appraisal and business-case development. As the principal architect of the Five Case Model, his expertise reinforces BCG’s methodological rigour, strategic credibility and alignment with HM Treasury Green Book standards.
Experience includes assignments undertaken by BCG team members through Value People Ltd and as individuals within other organisations before Business Case Guru was established.
See what BCG can do with a real case