Marathon Asset Management, a London-based specialist equity manager overseeing more than $40bn in assets, has consolidated its entire front-to-back investment infrastructure onto a single platform, SimCorp One, decommissioning legacy systems in the process.
The move creates a unified data layer across the firm, replacing fragmented technology with a single integrated environment. The implementation was delivered collaboratively between Marathon and SimCorp, and marks a significant extension of a partnership that dates back to 2010.
The consolidation is designed to reduce the time Marathon’s teams spend on data reconciliation and technology maintenance, freeing up capacity for client service and investment decision-making aligned with the firm’s Capital Cycle investment philosophy.
Marathon Asset Management head of operations, technology, change and data Andy Flawn said, “SimCorp understands both our operational and front office needs, which made unifying our front-to-back workflows on a single platform a clear decision.
“Lowering cost and risk through system consolidation was a key factor. Our partnership continues to deliver meaningful technology improvements that drive operational efficiency.”
SimCorp chief commercial officer Dean McIntyre said, “We’re proud to deepen our long-term partnership with Marathon. SimCorp One automates key processes across the investment lifecycle, giving Marathon the operational efficiency to scale.”
Marathon’s decision reflects a broader industry trend. SimCorp’s 2026 InvestOps Report found that consolidating technology vendors and platforms has become the leading priority for 58% of investment managers globally. Other asset managers that have recently selected SimCorp One include Pictet Asset Management, AllianceBernstein and Lindsell Train.
Founded in 1986 and operating as Marathon-London in North America and Japan, Marathon is an independent, privately owned firm serving an institutional client base across a range of regional, international and global equity strategies, all managed under its Capital Cycle Philosophy.
SimCorp, founded in 1971, is a provider of integrated investment management solutions for the global buy side. The firm employs more than 3,500 people across five continents and serves more than half of the world’s top 100 financial companies through its platform, services and partner ecosystem.
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