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The Group · People

The discipline of two.

The Board of each segregated portfolio comprises two Directors. The Principal Director — and sole shareholder of Amberstone Capital Group SPC Ltd. — is Odaana Magumba, who carries the Group's financial-operations, capital-structuring and compliance discipline. She is joined on the Board by Ntemi Ezekiel Massanja as legal, regulatory and compliance counsel. Together, the Board carries decades of experience across banking, insurance and reinsurance, capital markets, fintech, and corporate governance, with practice spanning East Africa, the United Kingdom, and the international institutional market.

Portrait of Odaana Magumba, Principal Director and sole shareholder of Amberstone Capital Group SPC Ltd.
Principal Director & Sole Shareholder · Financial Operations, Capital Structuring & Compliance

Odaana Magumba

Odaana Magumba is the Principal Director of Amberstone Capital Group SPC Ltd. and its sole shareholder. She is the Board's principal counsel on financial operations, capital structuring and compliance, and brings over eighteen years of experience across international banking, insurance and reinsurance operations, fintech, and corporate leadership. She built her career at Standard Chartered Bank, where she led multi-country transaction-banking implementations across the United Kingdom, South Africa, and Tanzania for global institutions including UNDP, UNHCR, France Telecom, Nokia Siemens Networks, and Ericsson AB. She subsequently co-founded GO Finance, an award-winning Tanzanian fintech recognised at Pivot East 2013, attracting venture funding from ACCION Venture Lab (USA) and development finance from FSDT and Trademark East Africa. She is currently Director — Financial Operations & Compliance at Guarant Limited, where she leads the company's regulatory compliance framework.

Position at Amberstone Capital Group
Principal Director & Sole Shareholder · 100% beneficial ownership of Amberstone Capital Group SPC Ltd. (issued capital USD 10,000,000)
Years in finance & compliance
18+
Current roles
Director — Financial Operations & Compliance, Guarant Limited (2023 – present)
Managing Partner — Finvest Limited (2023 – present)
Director & Chief Financial Officer — The Squid Limited / Ocean Pearl Zanzibar (2023 – present)
Director & Chief Financial Officer — ROM Solutions Ltd (2017 – present)
Career foundation — Standard Chartered Bank
Head, Solution Delivery — Transaction Banking, Tanzania (2010–2014)
Regional Implementation Manager — Transaction Banking, South Africa Hub (2007–2010)
Transaction Banking Officer, Tanzania (2005–2007)
Notable institutional mandates
Multi-country ERP-integrated payments and receivables implementations for UNDP (Nigeria, Tanzania, Kenya, Somalia, Jordan, Pakistan, Vietnam) · UNHCR (multiple African countries) · France Telecom (Ivory Coast, Cameroon, Uganda, Tanzania, Kenya, Jordan, Bahrain) · Nokia Siemens Networks (South Africa, Botswana, Kenya, Tanzania, Oman, Afghanistan) · Ericsson AB (Uganda, Tanzania, Kenya, China). Co-founded GO Finance (2012–2016) — winner, Pivot East 2013; investors included ACCION Venture Lab and FSDT.
Specialisations
Financial operations & reporting (IFRS / IFRS 17) · Regulatory risk management · AML / CFT compliance · Treasury & liquidity management · Capital structuring & fundraising · Transaction banking & cash management · Corporate governance & board leadership · Cross-border financial operations
Professional qualifications
Postgraduate Diploma in Financial Management (PGDFM) — The Institute of Finance Management, Dar es Salaam (2005) · BSc (Hons) Computers, Networking & Communication Technology — Coventry University, United Kingdom (2002) · Advanced GNVQ in Engineering — Solihull College, Birmingham (1998)
Recognition
Winner — Pivot East Regional Competition (2013) for fintech innovation · Led multi-million-dollar ERP banking implementations for global institutions across 20+ countries
Jurisdictions of practice
Tanzania · East Africa · United Kingdom · South Africa
Portrait of Ntemi Ezekiel Massanja, Director — Legal, Regulatory & Compliance Counsel.
Director — Legal, Regulatory & Compliance Counsel

Ntemi Ezekiel Massanja

Ntemi Massanja is the Board's principal counsel on legal, regulatory and compliance matters. He brings over thirteen years of experience advising banks, insurers, reinsurance brokers, and multinational counterparties across East Africa on banking regulation, insurance and reinsurance law, AML / CFT compliance, capital-markets supervision, and corporate governance. He is the Founding and Managing Partner of Gabriel & Co. Attorneys at Law in Dar es Salaam, where he serves as principal external legal counsel to Stanbic Bank Tanzania (Standard Bank Group) and Akiba Commercial Bank. He is an Advocate of the High Court of Tanzania and a member of the Tanganyika Law Society and the East African Law Society.

Years in legal & regulatory practice
13+
Current roles
Founding & Managing Partner — Gabriel & Co. Attorneys at Law (2015 – present)
Director & Shareholder — Roadgrip 2020 Ltd (2022 – present)
Prior firms
NMM Attorneys — Founding Partner (2013–2015)
Law Associates (Advocates) — Associate Advocate (2011–2013)
Notable institutional mandates
External legal counsel to Stanbic Bank (T) Ltd on banking regulation, compliance, and transactional matters · Retained legal advisor to Akiba Commercial Bank Ltd on regulatory compliance and BOT supervisory matters · Cross-border investment structuring for Tantel Holdings Ltd ($30M+ portfolio) · Transactional advisor on $30M+ project finance for Msufini (T) Ltd · Ongoing counsel to Junaco (T) Ltd ($100M+ annual turnover) on trade finance and FX compliance.
Specialisations
Banking & financial services law · AML / CFT compliance · Insurance & reinsurance regulatory compliance · Capital markets & securities regulation · Corporate governance & board advisory · Mergers, acquisitions & corporate restructuring · Cross-border transactions and foreign investment
Professional qualifications
Advocate of the High Court of Tanzania and subordinate courts thereto · Post-Graduate Diploma in Legal Practice — Law School of Tanzania (2012) · BA.LLB (Honours) — School of Law, Christ University, Bangalore (2011)
Memberships
Tanganyika Law Society (TLS) · East African Law Society (EALS)
Languages
English (fluent, professional working language) · Swahili (native)
Jurisdictions of practice
Tanzania · East African Community
02 — Board complementarity
“Two Directors. One legal-and-regulatory discipline. One financial-and-operational discipline. Both accountable for compliance. Both accountable for governance.”
The Office of the Board
03 — Investment Manager — Senior team

The team behind the Board.

The Investment Manager's senior team supports both Directors with the specific deal and operational expertise required for each portfolio. Asset-management strategy, target underwriting, fund operations, and portfolio compliance sit with the Investment Manager and report into the Board on a structured quarterly cycle.

Chief Investment Officer [Name]

[Bio summary, prior firms, AUM, qualifications.]

Head of Underwriting (Target) [Name]

[Bio summary, prior firms, lines of business, qualifications.]

Head of Fund Operations [Name]

[Bio summary, prior firms, qualifications.]

Head of Portfolio Compliance [Name]

[Bio summary, prior firms, qualifications.]

04 — Independent Advisory Board

Counsel from the outside, on the inside.

When constituted, the Independent Advisory Board comprises members drawn from reinsurance broking, family-office allocation, and BVI fund regulation. The Advisory Board's terms of reference are made available in the Investor Data Room.

[If an Independent Advisory Board is constituted: list members with photographs, prior roles, and the Advisory Board's terms of reference. If not yet constituted: a one-line statement to that effect, with the date the Board expects to convene one.]

Disclosures

Director and senior-team disclosures.

  • Full Curricula Vitae, fit-and-proper questionnaires, references, and Director consents are available in the Investor Data Room.
  • Director independence is assessed annually against the Group's Independence Policy and disclosed in the annual report.
  • Ms Magumba's beneficial ownership of Amberstone Capital Group SPC Ltd. (100%; issued capital USD 10,000,000) is filed under the BVI Beneficial Ownership Secure Search System Act and disclosed in the annual report.
  • Other directorships and material outside interests — including Ms Magumba's standing roles at Guarant Limited, Finvest Limited, The Squid Limited, and ROM Solutions Ltd, and Mr Massanja's roles at Gabriel & Co. Attorneys at Law and Roadgrip 2020 Ltd — are recorded in the Register of Outside Interests maintained by the Responsible Person and reviewed at every quarterly Board meeting.
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Meet the Board.

Investor calls and meetings with the Board, the Investment Manager, and BVI legal counsel form Step 03 of the four-step subscription path. We respond within one Business Day to qualified Professional Investors.