Citi Secures US$380 Billion Middle Office Mandate from Aegon Asset Management
By Lauren Towner · 14 August 2026
In brief: Citi Investor Services has won a US$380 billion middle office mandate from Aegon Asset Management, expanding a 20-year relationship and scaling its services on BlackRock's Aladdin platform.
| Mandate Value | US$380 billion |
|---|---|
| Relationship Duration | 20 years |
| Platform | BlackRock's Aladdin |
| Assets under Custody | US$35 trillion |

Quick Summary
Citi Investor Services has secured a US$380 billion middle office mandate from Aegon Asset Management. This expansion of a 20-year partnership utilizes BlackRock's Aladdin platform to provide Investment Book of Record (IBOR) services, trade management, and performance measurement for Aegon AM's global operations.
How does Citi Investor Services support Aegon Asset Management?
Citi Investor Services provides a comprehensive suite of middle office solutions designed to streamline complex asset management operations. By leveraging the Aladdin platform, Citi delivers an integrated service model that includes full Investment Book of Record (IBOR) services, trade management, settlement, and performance measurement via Aladdin Accounting. This mandate expands upon a 20-year relationship that already included custody, depositary, collateral, and fund accounting services.
- US$380 billion in Assets under Management covered by the new mandate.
- Full Investment Book of Record (IBOR) services.
- Trade management and settlement capabilities.
- Performance measurement via Aladdin Accounting services.
What is the significance of the Aladdin Provider model?
The transition represents a major milestone in Citi's strategy to act as an integrated service provider on BlackRock's Aladdin investment platform. By expanding the Aladdin Provider model, Citi Investor Services can offer enhanced data management and accounting services at scale. This model is supported by a global network of technology and operations hubs, ensuring consistent service delivery across multiple jurisdictions including the U.K., U.S., and Netherlands.
How is the Budapest Citi Solutions Centre involved?
To support the enhanced capabilities required by this mandate, Aegon Asset Management's operations employees in Budapest, Hungary, have transferred to the Citi Solutions Centre. This move integrates specialized expertise directly into Citi's team, allowing these professionals to continue supporting Aegon AM as a client while growing their careers within Citi's global infrastructure. The Budapest hub works alongside teams in India, Poland, the U.K., and the U.S. to maintain the global operating model.
FF NEWS TAKE:
This mandate is a significant win for Citi Investor Services, demonstrating the growing trend of large asset managers outsourcing complex middle-office functions to trusted banking partners. By deepening its integration with BlackRock's Aladdin, Citi is positioning itself as an essential infrastructure layer for the world's largest institutional investors. The transfer of staff also highlights a sophisticated approach to talent retention during large-scale service transitions, ensuring continuity for Aegon AM.
Frequently asked questions
What services is Citi providing to Aegon Asset Management?
Citi is providing a full middle office mandate including Investment Book of Record (IBOR) services, trade management, settlement, and performance measurement. These services are delivered via Aladdin Accounting and complement existing services such as custody, depositary, collateral, and fund accounting.
How much in assets does the Citi and Aegon AM mandate cover?
The mandate covers US$380 billion in Assets under Management. This represents a significant expansion of the 20-year relationship between Citi Investor Services and Aegon Asset Management.
Which technology platform is being used for this mandate?
The mandate utilizes BlackRock's Aladdin investment platform. Citi is operating as an integrated service provider on the platform, expanding its Aladdin Provider model to deliver enhanced data management and accounting services.
About the companies
Citi
Website · 172 stories and 12 video interviews on FF News since 2020
Previously on FF News:
- EXCLUSIVE: "What We Build and What We Buy" - Biswarup Chatterjee, Citi Services in 'The Paytech Magazine' 9 November 2026
- Citi, American Airlines, and Mastercard Unveil Enhanced AAdvantage Credit Card Portfolio 30 October 2026
- Sibos 2026: Citi's Bis Chatterjee on stablecoin partnerships and interoperability 29 October 2026
BlackRock
Website · 73 stories on FF News since 2021
Previously on FF News:
- Premialab and BlackRock’s Aladdin Partner to Drive Institutional QIS Adoption 3 November 2026
- BlackRock Expands Active Fixed Income Range with New European Investment Grade and High Yield ETFs 29 October 2026
- 55ip Partners with BlackRock and J.P. Morgan to Scale Personalized Investing for RIAs 21 October 2026
Companies in this story: Citi, Citi Investor Services, BlackRock, Aegon Asset Management, SIX Securities Services
People in this story: Mike Hughes, Mike Tumilty