We use our unrivalled expertise to identify sub-investment grade opportunities overlooked in the market by pricing and moderating credit risk using proprietary methods, assessing up to 10 times the number of deals that we transact. SIMCo employs strict criteria for selecting infrastructure debt investments, rating each loan using our proprietary credit factor model, and using the judgment of our expert Investment Committee.
Specialists
We have invested in over 250 projects and companies, sourcing and deploying over $6 billion of high-yield credit in over 40 infrastructure sub-sectors and across 15 markets globally.
We use our platform to source these opportunities for our investors, either bilaterally or via club deals using an expansive network across the UK, Europe, North America and Asia-Pacific.
In the fast-growing mid-market for infrastructure, we are often the first call when a borrower needs a lender with infrastructure specialist investment experience no generalist can match.
Our strong relationships have been built over 25+ years with top infrastructure sponsors, advisors, construction companies, agents, banks and equity investors. These global relationships help us access the largest possible investment set when finding opportunities for our funds.
Pioneers
SIMCo is a leader in innovation. We have defined private infrastructure debt as an alternative investment asset class, investing through multiple credit cycles over the last decade.
We invest across the debt structure in senior, mezzanine, and holdco loans managing a portfolio of over $2 billion of assets under management. You can read more about our funds here.

Over the 10-year lifetime of our flagship FTSE-250 listed income fund, we have generated total returns significantly above high yield bond benchmarks whilst maintaining default and loss rates in our portfolio comfortably below long-term infrastructure and broader industrial benchmarks.
Our track record of product innovation in the historically niche private infrastructure credit market offers a differentiated portfolio allocation opportunity for our pension funds, insurers, sovereign and private wealth investors.
One team
We are an independent firm located in one office with 15 nationalities, collectively focused on maximising value for our clients and borrowers throughout the life of our managed investments.
While our team of investment professionals is engaged in every aspect of the investment lifecycle, efficient outsourcing of back- and middle-office processes help maintain highly competitive fees for our clients and counterparties.
With the quality of our specialised team in a single location, we are nimble, and our investment process is transparent; we move at pace when making critical decisions to transact, troubleshoot and be accountable to delivering results – consistently.
SIMCo’s founding partners and Directors are seasoned investment and capital markets professionals, each with over 25 years of experience at major European and US investment banks and asset managers, and credit rating agencies.
We attract the industry’s best talent who want the benefits of an established “niche specialist” culture but the professional opportunities typically the reserve of multi-strategy or bulge-bracket investment firms. Our Associates and Analysts are provided a stimulating and dynamic place to work with responsibility and exposure to all aspects of researching investments, originating infrastructure assets, managing portfolios, and raising capital.
Find out more about our team and Directors here.
Active partners
We build tailored investment solutions which provide over 200 institutional and intermediary investors access to attractive risk-adjusted returns, outperforming the relevant benchmarks.
We manage permanent listed capital alongside private mandates to invest across our diversified portfolios, ensuring we are continuously available in the market to provide solutions matching the needs of our investors and our borrowers.
The reliability of our capital sources makes us trusted – and often repeat – partners to equity sponsors and borrowers’ management teams, in a market with where experienced private lenders are in short supply. Our focus on cost efficiency and prudent capital deployment enables us to offer financing solutions that aim to balance borrower needs with the long-term interests of our investors.
Our platform is highly scalable thanks to the established long-term partnerships with equity GPs, intermediaries, capital sources, and technical advisers.