Volumetric Fund has a well-experienced and dedicated team of industry professionals. From our knowledgeable portfolio managers to our committed board of directors, in conjunction with our auditors, banks, custodian, trustee and brokers, we are all committed to quality and service of our shareholders.

A Mutual Fund

with a Difference

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Irene Zawitkowski
Chair, CEO,
Senior Portfolio Manager

Irene Zawitkowski was born in 1953 in New Jersey. She has a B.S. degree in Accounting and received an MBA degree in Finance from Fairleigh Dickinson University in 1978. 

Ms. Zawitkowski was working at Lonza, Inc. as an accounting supervisor in the mid 1970s. She assisted Mr. Gibs in setting up Volumetric in 1978. She has been an officer of the Fund since inception. She served as President and Portfolio Co-Manager from September 2003, to April 2016.  In 2016, Ms. Zawitkowski was appointed CEO and Senior Portfolio Manager of the Fund and in June 2018, Ms Zawitkowski was appointed Chair of the Board. She is also Executive Vice President of Volumetric Advisers, Inc.


Ms. Zawitkowski is married and has two children.  

Jeffrey Gibs
President, Portfolio Co-Manager, Chief Compliance Officer

Jeffrey Gibs was born in 1966 and raised in New York.  He attended Monmouth University, where in 1988 he earned a B.S. degree in Business with concentration in Computer Systems.


Mr. Gibs began his investment industry career in 1988 at Chase Manhattan Bank (now J.P. Morgan Chase) in the global custody area for the U.S. Private Banking Division.  Thereafter, Mr. Gibs had worked several years for two separate investment advisers, managing their back and middle office operations and held the position of compliance officer. Most recently, he was Vice President and manager of a hedge fund administration group at US Bank. In addition to these companies, Mr. Gibs has served as a consultant to Volumetric Fund since 1988 and was employed full time as Vice President from 1997 to 2001. He has served as Volumetric Fund’s Chief Compliance Officer (CCO) since 2007.

In 2015, he became a full time employee again. From  2015 to 2016 he served as Executive Vice President and in 2016, he was appointed as President and Portfolio Co-Manager to Volumetric Fund. He performs a vast area of responsibilities in the areas of  portfolio management, operations, accounting, shareholder relations, compliance and marketing.

Jeffrey is the son of Gabriel Gibs, Founder and Chairman Emeritus, of Volumetric Fund. He is married with two children.



US Bank - Custodian for Assets
Equity Institutional - Custodian of Retirement Accounts
BBD, LLP - Independent Registered Public Accounting Firm

Phone: 800-541-FUND or 845-623-7637

Email: info@volumetric.com

Volumetric Fund, Inc.

87 Violet Drive, Pearl River, New York 10965

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