Founder-led, by design

Gaety Mayimona is the founder of Mayimona Data Advisory. He has spent eight years making data usable for decisions in complex organisations, across pensions, aviation, financial services, insurance, FMCG and retail.

His work covers the whole chain: defining the metrics and governance a business needs, designing the architecture, and building the pipelines, models and reporting that put it into production. He has designed and delivered a cloud lakehouse during a legacy-to-cloud migration, built governed data products for investment and trading teams, implemented access controls for sensitive data, and helped senior stakeholders turn unclear reporting needs into trusted, reusable metrics.

Gaety came to data through business. Early roles in brand, channel and commercial teams, followed by an MSc in International Business, taught him to start from the decision rather than the technology. During the MSc he delivered data-led strategy work for clients including Apple. Later work in insurance and risk management, where he earned the Chartered Insurance Institute's Certificate in Insurance, grounded that in regulated, risk-sensitive environments.

He founded MDA to make that experience available beyond the largest organisations. Most of his career has been spent with large, complex organisations, usually through consultancies and programmes built for organisations of that scale. MDA offers the same depth of judgement and delivery directly, sized to the organisation, whether that is a mid-sized organisation modernising its reporting, a division of a much larger group or a public institution building its own capability. The aim stays the same: helping people understand their data well enough to trust it, question it and act on it, with senior accountability from strategy to delivery.