Aquiline Capital Partners is making headlines with a strategic family office acquisition set to reshape the ultra-high-net-worth services market.
The investment firm has entered a definitive agreement to acquire SEI’s Family Office Services business in a deal worth $120 million.
Following the transaction, the business will be rebranded as Archway, building on the strength of SEI’s Archway PlatformSM.
This move marks a focused effort by Aquiline to invest deeper in fintech infrastructure targeting wealth and investment management segments.
Archway to Stand Alone Under Aquiline Ownership
After the deal closes, Archway will operate as a standalone entity, offering tailored services for family offices and financial intermediaries.
Importantly, the new structure ensures continuity for clients, while also promising renewed innovation under focused ownership and direction.
The relaunch taps into Archway’s reputation for excellence in accounting, investment management, and reporting software for elite family offices.
Therefore, the family office acquisition gives Aquiline a strong platform to build deeper capabilities in this growing, high-value financial niche.
SEI’s Platform Supports $723 Billion in Client Assets
As of December 31, 2024, SEI’s Family Office Services supported a staggering $723 billion in assets through the Archway Platform.
Although this asset figure isn’t indicative of revenue, it shows the massive scale and trust built across Archway’s client base.
Clients include multi-family offices, private banks, and wealth managers who rely on Archway for operational efficiency and advanced reporting tools.
Clearly, Aquiline is acquiring not just technology—but an established, trusted solution embedded in high-net-worth financial ecosystems.
Technology Meets Outsourced Expertise for UHNW Needs
The platform blends cutting-edge software with outsourced services, a model that appeals to ultra-high-net-worth families seeking streamlined solutions.
Archway helps users consolidate and manage complex portfolios, track investments, and maintain tax and accounting compliance with ease.
Because of this hybrid approach, family offices can improve service quality while reducing internal workload and operating complexity.
Notably, this value proposition supports long-term demand for scalable, digital-first wealth management infrastructure in global markets.
Deal Expected to Close by Mid-2025
The transaction is projected to close in the second quarter of 2025, pending regulatory approvals and standard closing conditions.
Aquiline was advised by Morgan Stanley & Co. LLC and Ropes & Gray LLP on the financial and legal fronts, respectively.
SEI received legal counsel from Holland & Knight, ensuring the agreement met industry and compliance standards.
Thus, the family office acquisition follows a well-structured, high-profile process supported by global advisory teams on both sides.
Aquiline Deepens Fintech and Wealth Management Play
This acquisition continues Aquiline’s broader strategy to invest in financial technology and platforms serving wealthy and institutional clients.
By integrating Archway into its portfolio, Aquiline expands its presence across the entire wealth value chain—from core operations to client services.
Because of its scale, Archway provides a unique opportunity to capitalize on rising demand for sophisticated back-office solutions in wealth management.
Ultimately, the family office acquisition positions Aquiline to influence how the next generation of family offices manage their growing complexity.
Conclusion: A New Chapter for Archway
Once the transition completes, Archway will continue delivering trusted technology and services—but with fresh capital and sharper strategic focus.
For existing clients, the shift should be smooth, with Aquiline expected to prioritize continuity and enhancement of platform capabilities.
For the broader market, this deal underscores growing interest in scalable, API-first, and cloud-ready solutions tailored for elite financial operators.
Indeed, this family office acquisition reflects a larger trend of modernization sweeping through the private wealth and advisory ecosystem.