Contact Us

Marmont Partners, LLC
925 W. Lancaster Avenue, Suite 220, Bryn Mawr, PA 19010
833-MARMONT / (833)-627-6668

about marmont
partners, llc

Marmont Partners, LLC, is a registered investment advisor under the Securities Act of 1940. Marmont Partners is based in Bryn Mawr, PA.

Marmont Partners was founded in 2017 and launched its first mutual fund, the Marmont Redwood International Equity Fund, on February 14, 2018.

Redwood Investments, the Sub-Advisor to the Marmont Redwood International Equity Fund, is a Newton, Massachusetts-based institutional investment management firm that manages approximately $2.1 billion (as of 9/30/19) for numerous public and corporate pension funds, foundations, endowments, insurance companies and ultra high net worth individuals. Redwood is 94% employee-owned with 17 employees.
Please click on this video to listen to Gui Costin, Founder of Marmont Partners, give a brief firm overview and organizational history.


Founding Partner
University of Virginia, B.A.

Mr. Costin has more than 20 years of experience working with asset management firms. As the founder of Marmont Partners, Mr. Costin set its strategy and focus. He maintains key relationships across the spectrum of investors within the United States.

In 2006, Mr. Costin co-founded Penn Square Real Estate Group, the predecessor company to Dakota Funds Group. Prior to founding Dakota, he worked in intermediary distribution for Cramer Rosenthal McGlynn and in intermediary sales with Turner Investments. Mr. Costin earned a Bachelor’s degree in Communication from the University of Virginia in 1989.


President and Chief Compliance Officer
Villanova University, B.A.

Mr. DiDomenico has primary relationship responsibility for a group of consultants, sub-advisors, independent broker-dealers and RIAs. His responsibilities also include the effective identification, measurement, control and management of compliance risk. In addition, Mr. DiDomenico is also responsible for the development, implementation, review and revision of the compliance risk procedures and systems.

Prior to Marmont, he joined Dakota Funds Group as President and the firm’s Investment Director, leading many of the sales and marketing efforts. Prior to joining Dakota, he was employed as a Product Director at The Hartford, the Director of Investor Relations at Penn Square Real Estate Group and a Relationship Manager for institutional clients at The Vanguard Group. Mr. DiDomenico graduated from Villanova University in 2000 with a Bachelor's degree in Finance.


Chief Investment Officer
University of Notre Dame, B.A.

Mr. O’Grady brings more than 25 years of industry experience to the firm. Besides responsibilities of manager selection and monitoring, Mr. O'Grady also focuses on Marmont's distribution efforts. Prior to joining Marmont in January 2018, he joined Dakota Funds Group as Chief Investment Officer, leading the firm’s partnership selection process. Prior to joining Dakota and Marmont, Mr. O’Grady also founded Access Distribution Partners, where he helped raise several billion in assets across multiple strategies. From 2002-2005, he was employed as a trader and portfolio analyst with Coda Capital Management; where he assisted in portfolio evaluation as well as the firm’s marketing efforts. Mr. O'Grady also held multiple positions in sales and trading at Goldman Sachs, Credit Suisse and Bank of America. Mr. O’Grady earned a Bachelor’s degree in International Studies from the University of Notre Dame in 1989.



Redwood Investments International Equities team is comprised of our three portfolio managers who have over 45 years of combined investment expertise. The group is aligned behind the philosophy and process, and makes decisions as a team.


Redwood Investments has a universal investment philosophy across all products: they believe that stocks are largely priced as a multiple of consensus earnings estimates, and that these estimates are typically flawed due to human nature and market structure. Further, these inefficiencies can be exploited by diligent investors to clients’ advantage. The inefficiencies may be more pronounced in non-US markets.


At its core, Redwood is a qualitative investment firm focused on fundamental analysis. Critical to the approach, however, is a proprietary quantitative model that serves as a first step in their investment process. The model narrows the broad universe of companies and allows the analysts to prioritize their qualitative research. The model is also used to provide objective feedback on individual stocks, and to continuously manage risk and exposures in the overall portfolio.