top of page

Essential Fund Services International, LLC ("EFSI")

Essential Fund Services International, LLC (“EFSI”) is an independently owned, SOC 1 compliant, full-service fund administration firm based in New York. We provide investment management firms with a comprehensive suite of fund administration services in a cost-effective structure. With more than $5.5bn in assets under administration, EFSI works with managers that employ a range of investment styles, including hedge funds, private credit, private equity, real estate and venture capital, in both domestic U.S. and offshore fund structures. The center of EFSI’s service incorporates resilient technology and an accomplished staff, providing clients a tailor-made service with exhaustive transparency.

Our services include accounting, reporting and administrative services to private investment funds and managed accounts; capital introduction services; and advisory and outsourced COO/CFO services. EFSI enables the investment manager to focus more closely on their investment strategy, comfortable in the knowledge that the critical administrative functions that are necessary for them to succeed are in the hands of skilled, accomplished and seasoned professionals.


EFSI differentiates itself by providing clients with a high quality, “hands-on” approach, as compared to a “one size fits all” solution. EFSI acts as a partner to our clients, supporting them throughout the lifecycle of their funds and the complexities and challenges unique to their business so that they spend more time doing what they do best – deliver alpha to their investors.


Zephyr's PSN

PSN has been a top resource for investment professionals for four decades. Asset managers rely on Zephyr's PSN to effectively reach institutional and retail investors. Over 2,800 firms, 285 universes, and more than 21,000 products comprise the PSN SMA database showing asset breakdowns, compliance, key personnel, ownership diversity, ESG, business objectives and strategy, style, fees, GIC sectors, fixed income ranges and full holdings. Unique to PSN is its robust historical database of nearly 40 Years of Data Including Net and Gross-of-Fee Returns. For more details visit PSN online to learn more.

AA Logo - Original (jpeg).jpg

Prager Metis Advisors & Accountants

Prager Metis is a top international advisory and accounting firm with over 100 partners and principals, more than 600 team members, and twenty-four offices worldwide including New York, New Jersey, California, Washington D.C., Connecticut, Florida, Massachusetts, Nevada, North Carolina, London, UK, Chennai, India and the Metaverse.  Prager Metis is one of the nation’s fastest growing firms offering a full range of accounting, audit, tax, consulting, and international services.  


Prager Metis provides the depth and breadth of resources of a national firm with the personalized and specialized perspective you expect from your local advisors.  The experts at Prager Metis are positioned to help you best manage all aspects of compliance and operations related to your business. The firm is well-versed in all of the latest regulatory requirements and our experience with complex fund operations in the U.S. and around the globe allows us to provide you with a holistic view of your operations.


Prager Metis is registered with the Public Companies Accounting Oversight Board (PCAOB) and is a Cayman registered firm. We have worked with many asset management clients, both domestically and international

Interested in becoming a partner?

Collaboration is the secret sauce to success. Contact us today to see what a partnership with IMSS could look like. 

bottom of page