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Thesis Asset Management
Thesis Asset Management is a UK discretionary manager running multi-asset and AIM portfolios for private clients and advisers from Chichester.
Thesis Asset Management
Thesis Asset Management was established to provide discretionary investment management to private clients, trusts, and charities across the UK. The firm was built by a team of investment professionals seeking to offer a centralized approach to asset allocation, freeing independent financial advisers and private clients from the burden of day-to-day portfolio decisions. Rooted in the south of England, the firm has expanded through organic growth and selective acquisitions of advisory books. The strategy centers on a multi-asset, risk-graded framework. The in-house investment team constructs model portfolios spanning equities, fixed income, alternatives, and cash, adjusting tactical tilts within a strategic asset allocation. Core offerings include the Thesis range of multi-asset funds and a specialist AIM inheritance tax portfolio service. The firm operates a managed portfolio service that white-labels its investment capability for a network of UK financial advisers. Client portfolios are managed against defined risk mandates, with the investment team conducting manager selection and direct security analysis for the AIM book. The firm employs investment professionals at its Chichester headquarters and maintains a regional presence to service its adviser network. Growth has been driven by consolidating retiring advisers' client books and winning intermediary mandates. The structure deliberately separates investment decision-making — housed in the central investment office — from client-facing relationship managers, a model intended to institutionalize process over personality. As a UK-focused manager, the firm's research and dealing capabilities are tuned to the local tax and regulatory landscape, particularly inheritance tax planning, which has become a significant book of business. The structural differentiator is the central investment engine paired with a widely distributed adviser-facing service. Unlike boutique wealth managers where the lead adviser is also the portfolio manager, Thesis runs a hub-and-spoke model where a single investment committee sets asset allocation and fund selection for all client accounts. This design creates scalability in client service while keeping investment decisions quarantined from individual relationship pressures. The AIM inheritance tax service, which directly manages a portfolio of qualifying companies, is a niche that ties investment management to deeply practical UK estate planning.
General information
Firm type
Generalist
Year founded
—
AUM
Undisclosed
Location
Region
Europe
Country
United Kingdom
City
Chichester
Corporate office
Chichester, United Kingdom
Frequently asked questions
What does the central investment office model mean for client portfolios?
Thesis separates portfolio construction from client relationship management. A central investment committee sets the asset allocation, fund selection, and tactical tilts across all client accounts. Individual advisers then map client goals onto that investment framework. This is designed to ensure every client benefits from the same institutional-grade investment process, rather than outcomes depending on which adviser they speak to.
How does the AIM inheritance tax portfolio service work?
The AIM portfolio invests in qualifying companies listed on the London Stock Exchange's Alternative Investment Market that qualify for Business Property Relief. After a two-year holding period, the shares can potentially be passed free of inheritance tax under current UK rules. Thesis manages the selection and ongoing monitoring of these holdings directly, making it a specialist discretionary book rather than a passive tracker.
Does Thesis manage assets for institutional investors or only private clients?
The firm's core client base consists of private individuals, trusts, and charities. Much of the flow arrives through independent financial advisers who use Thesis's managed portfolio service for their clients. Thesis does not typically compete for large institutional mandates such as local government pension schemes; the platform is purpose-built for intermediary-distributed private wealth.
Who makes the investment decisions at Thesis Asset Management?
A centralized investment office, led by the chief investment officer and an investment committee, is responsible for asset allocation, manager selection, and direct equity analysis for specialist mandates such as the AIM portfolio. Individual relationship managers and advisers implement these decisions within agreed client parameters. Investment team leadership is disclosed in the firm's regulatory filings and fund documentation.
What is the relationship between Thesis Asset Management and the Thesis multi-asset funds?
Thesis runs a range of risk-graded multi-asset funds that serve as building blocks for client portfolios. The firm also manages bespoke segregated portfolios, but its funds provide an accessible entry point for clients and are frequently used within the managed portfolio service. The same investment team manages both fund and bespoke mandates, ensuring consistency of house view.
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