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About Us

We steward long-term capital with discipline, building and scaling resilient platforms across agribusiness, energy, and real assets that strengthen food security, create jobs, and drive sustainable growth across Africa.

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Who We Are

AST-AAR Capital Investment is a UK based investment company focused on long term value creation across Africa’s real economy sectors. We deploy disciplined, patient capital into agribusiness, land use, energy, logistics, and infrastructure, backing scalable platforms with strong fundamentals.

As long term stewards of capital, we work closely with operators and communities, combining governance, capital discipline, and ESG oversight. Through AgriFrontier Platform Limited and Senehun Agri Platform, we deliver growth, resilience, and lasting value for investors and local economies.

Who We Are

Our Story

AST-AAR Capital Investment was established to support Africa’s long-term growth by building scalable, well-governed, and resilient real asset platforms. We act as a patient, long-term sponsor across agribusiness, energy, logistics, land, and infrastructure, combining disciplined capital with strong governance and clear strategic direction.

By working closely with entrepreneurs and operators, we strengthen foundations, enable responsible expansion, and build enduring platforms that grow sustainably, create jobs, and deliver lasting economic and social value for communities and investors alike.

Our Story

Mission & Vision

At AST-AAR Capital Investment, we steward long-term capital with discipline, building and scaling resilient platforms across agribusiness, energy, and real assets that strengthen food security, create jobs, and drive sustainable growth across Africa.

Our vision is to develop well-governed, institutionally robust assets that deliver consistent returns alongside meaningful impact, creating lasting value for communities, partners, and investors over the long term.

Mission and Vision

Our Values

At AST-AAR Capital Investment, our values shape how we invest, operate, and grow. We act as responsible stewards of capital, taking a long term view that prioritises sustainability and lasting impact. We apply discipline in every decision, ensuring capital is deployed with care, strong governance, and clear purpose. We believe in partnership, working closely with communities, operators, and stakeholders to create shared value. Integrity underpins everything we do, guided by transparency and accountability. Above all, we build for endurance, developing resilient platforms designed to perform, adapt, and deliver value across generations.

Our Values

Leadership & Governance

Our leadership team brings long-term stewardship and governance discipline to every platform we sponsor.

Institutional Sponsorship & Governance

Executive Team

Charles Martyn

Charles Martyn

Founder, Chairman & Principal

Julian Emmanuel Khan

Julian Emmanuel Khan

Executive Director & Managing Partner

AO

Adedamola Ogunfidodo

Executive Director & Senior Investment Partner

Simeon Bamba Kamara

Simeon Bamba Kamara

Head of Compliance / ESG Director

Olufemi Kuti

Olufemi Kuti

HR Director / People & Culture

SM

Sharon Miliband

Head of Sales & Export

Ariane Umutesi

Ariane Umutesi

Head of Business Dev (West Africa)

OPERATIONS

Management Team

Delivery & Execution

Cedric Sibanda

Cedric Sibanda

Head of Finance

Imogen Cartwright

Imogen Cartwright

Investment Portfolio Manager

Nikita Diamond

Nikita Diamond

Compliance Manager

Sharon Wade

Sharon Wade

Manager Market Intelligence

Habibah Tcham

Habibah Tcham

Head of Communications / PR

Charlie Rogers

Charlie Rogers

Investment Analyst

F

Florence

Admin / Executive Assistants

GUIDANCE

Advisory Board

Sector Expertise

OK

Osman Rahman Kamara

Agribusiness Advisor