US wealth management giant Corient is set to become the world’s largest multi-family office after acquiring Stonehage Fleming and Stanhope Capital, marking a major shift in Europe’s ultra-high-net-worth sector.
A US-based wealth management firm, Corient, is set to make a significant mark in the European financial landscape by acquiring two prominent European rivals, Stonehage Fleming and Stanhope Capital. This strategic deal, as articulated by company insiders and reported by multiple sources including the Luxembourg Times and Reuters, will position Corient as the world’s largest multi-family office and a leading competitor in Luxembourg’s financial sector.
Corient, which currently manages client assets worth $214 billion globally, is making its first foray outside the United States with this acquisition. The deal will roughly double its client assets and establish a substantial presence across Europe, the Middle East, and Africa. Following the acquisition, Stonehage Fleming and Stanhope Capital’s operations will be consolidated under the Corient brand, forming its international division. Hélie de Cornois, head of the family office division in Luxembourg at Stonehage Fleming, described the transaction as creating one of the world’s most formidable independent advisory firms dedicated to serving ultra-high-net-worth families and wealth creators.
Family offices, specialised firms that manage the investments and administrative affairs of wealthy individuals and families, play a crucial role in managing complex financial and estate planning needs. Single family offices cater exclusively to one family and are exempt from separate regulatory authorisation, while multi-family offices serve multiple wealthy families and require specific regulatory approval. This acquisition will make Corient the largest globally in this space, demanding regulatory consent in 14 jurisdictions where Stonehage Fleming currently operates.
The European footprint of the acquired firms is notable. Stanhope Capital, headquartered in London and which merged with Luxembourg-based Arche in 2023, reported a turnover of €6 million and a net profit of €1 million in Luxembourg for 2024, employing around 20 staff there. Stonehage Fleming, based in Jersey, has operated in Luxembourg since 2011 and reported €7.3 million in turnover but a net loss for the 2024 financial year, partly due to a €1 million asset write-down. Its Luxembourg operations have expanded steadily, following its acquisition of Maitland Luxembourg’s family office portfolio in 2022 and growing its staff from seven five years ago to 62 today.
This acquisition is seen as a significant opportunity to establish the world’s largest non-bank wealth management and multi-family office business focused on ultra-high-net-worth clients, who typically have at least €30 million in investable assets. De Cornois highlighted that Corient is a cultural fit with Stonehage Fleming, and the deal preserves client alignment through a private partnership model, where over 300 equity partners will own and operate the firm.
Corient aims to complement and enhance its local Luxembourg offerings with new services, particularly in investment, creating a comprehensive “one-stop shop” for wealthy clients. The transatlantic presence is increasingly important as many European entrepreneurs have found success in the US, while numerous American families seek relocation or have substantial European assets. This client mobility is a driver for family office growth, raising complex challenges that require coordinated cross-border expertise, which the combined entity is well placed to offer.
Industry commentators note that the family office sector in Continental Europe remains relatively young, with many structures established in the last two decades. Consolidation is expected to continue, as robust family offices capable of supporting clients across generations and jurisdictions require scale, sophisticated IT systems, and deep expertise.
Additional financial details of the transaction remain undisclosed, although Caledonia Investments plc has confirmed selling its minority stake in Stonehage Fleming to Corient, expecting net proceeds of around £288 million. Legal advisory firm Skadden, Arps, Slate, Meagher & Flom LLP is assisting Corient, with the deal set to close in the first half of 2026.
Altogether, this acquisition marks a pivotal moment for Corient, positioning it as a formidable player with $430 billion in combined assets under management. It underscores Luxembourg’s continuing appeal as a hub for wealth management and family office services, while reflecting broader trends of globalisation and consolidation in the ultra-high-net-worth advisory sector.
- https://www.luxtimes.lu/businessandfinance/us-wealth-manager-enters-luxembourg-in-bid-to-create-worlds-largest-family-office/106047028.html – Please view link – unable to able to access data
- https://www.reuters.com/legal/transactional/mubadala-backed-corient-acquire-two-european-wealth-managers-214-billion-asset-2025-09-02/ – Corient, a prominent U.S. wealth advisory firm backed by Mubadala Capital, announced its acquisition of European firms Stonehage Fleming and Stanhope Capital Group. This strategic move adds over $214 billion in client assets to Corient’s portfolio, marking a significant expansion into Europe, the Middle East, and Africa. The transactions, expected to close in the first half of 2026, will be funded through equity contributions. The combined global business will operate under the Corient brand, extending its private partnership model internationally. ([reuters.com](https://www.reuters.com/legal/transactional/mubadala-backed-corient-acquire-two-european-wealth-managers-214-billion-asset-2025-09-02/?utm_source=openai))
- https://www.corient.com/news/Corient-Announces-Global-Expansion – Corient, a leading U.S. wealth management firm, has announced its global expansion through the addition of Stonehage Fleming and Stanhope Capital Group. This acquisition brings more than $214 billion in client assets to Corient, establishing it as the world’s largest independent wealth manager and multi-family office focused on ultra-high-net-worth clients. The deal is expected to close in the first half of 2026, with the combined business operating under the Corient brand. ([corient.com](https://corient.com/news/Corient-Announces-Global-Expansion?utm_source=openai))
- https://www.skadden.com/about/news-and-rankings/news/2025/08/corient-acquires-stonehage-fleming-and-stanhope-capital – Skadden, Arps, Slate, Meagher & Flom LLP is advising Corient on its global expansion through the acquisition of Stonehage Fleming and Stanhope Capital Group. This move creates a $430 billion independent ultra-high-net-worth wealth manager. Stonehage Fleming and Stanhope Capital will bring more than $214 billion in client assets to Corient, establishing its presence in Europe, the Middle East, and Africa. The acquisitions are expected to close in the first half of 2026. ([skadden.com](https://www.skadden.com/about/news-and-rankings/news/2025/08/corient-acquires-stonehage-fleming-and-stanhope-capital?utm_source=openai))
- https://www.investing.com/news/company-news/caledonia-to-sell-stake-in-stonehage-fleming-to-corient-93CH-4218627 – Caledonia Investments plc has agreed to sell its minority stake in Stonehage Fleming to U.S.-based Corient Private Wealth LLC. The transaction, subject to regulatory approvals, is expected to complete in the first half of … . Caledonia is set to receive approximately £288 million in net cash proceeds from the sale. ([investing.com](https://www.investing.com/news/company-news/caledonia-to-sell-stake-in-stonehage-fleming-to-corient-93CH-4218627?utm_source=openai))
- https://www.fintechfutures.com/m-a/corient-acquires-stonehage-fleming-and-stanhope-capital – Corient has acquired Stonehage Fleming and Stanhope … , two prominent European wealth management firms. Stonehage Fleming, formed through the 2014 merger of Fleming Family and Partners and international family office Stonehage, manages over $175 billion in combined assets across 12 jurisdictions. Stanhope Capital, founded in 2004, is one of Europe’s largest independent wealth management and advisory firms, with around $40 billion in assets. The acquisitions are expected to close in the first … . ([fintechfutures.com](https://www.fintechfutures.com/m-a/corient-acquires-stonehage-fleming-and-stanhope-capital?utm_source=openai))
- https://www.bloomberg.com/news/articles/2025-09-02/mubadala-backed-corient-buys-uk-wealth-firms-stonehage-stanhope – Mubadala-backed Corient has agreed to acquire Stonehage Fleming and Stan … , adding over $214 billion in assets under management. The combination creates a $430 billion independent wealth manager, with the deal expected to close in the first … . Financial terms were not disclosed. ([bloomberg.com](https://www.bloomberg.com/news/articles/2025-09-02/mubadala-backed-corient-buys-uk-wealth-firms-stonehage-stanhope?utm_source=openai))
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
10
Notes:
The narrative is based on a press release issued by Corient on September 2, 2025, announcing the acquisition of Stonehage Fleming and Stanhope Capital. This press release has been widely covered by reputable news outlets, including Reuters and Bloomberg, on the same date. The Luxembourg Times article appears to be a direct reproduction of this press release, with no significant updates or new information. Therefore, the freshness score is high, but the content lacks originality. The republishing of the press release across multiple outlets, including low-quality sites, is noted. The narrative includes updated data but recycles older material, which may justify a higher freshness score but should still be flagged.
Quotes check
Score:
10
Notes:
The quotes attributed to Hélie de Cornois, head of the family office division in Luxembourg at Stonehage Fleming, are identical to those found in the original press release. No earlier usage of these quotes was found, indicating they are original to this release. Therefore, the quotes are original and exclusive.
Source reliability
Score:
5
Notes:
The narrative originates from the Luxembourg Times, which is not a widely recognized or reputable news outlet. The content appears to be a direct reproduction of Corient’s press release, with no additional analysis or verification. This raises concerns about the reliability and credibility of the source.
Plausability check
Score:
10
Notes:
The claims made in the narrative align with information from reputable sources, including Reuters and Bloomberg, confirming the acquisition details. The financial figures and strategic implications are consistent with the press release and other reputable reports. Therefore, the narrative is plausible and supported by credible information.
Overall assessment
Verdict (FAIL, OPEN, PASS): FAIL
Confidence (LOW, MEDIUM, HIGH): HIGH
Summary:
The narrative is a direct reproduction of Corient’s press release, lacking originality and sourced from a low-reputation outlet. While the information is accurate and supported by reputable sources, the lack of original reporting and the questionable reliability of the source lead to a ‘FAIL’ assessment.

