Consulting Agreement Amendment, dated January 17, 2017, by and among Pharma-Bio Serv, Inc., Strategic Consultants International, LLC and Elizabeth Plaza, effective January 1, 2017

CONSULTING AGREEMENT AMENDMENT (this "Amendment"), effective as of January 1, 2017, by and among Pharma-Bio Serv, Inc., a Delaware corporation (the “Company”), Strategic Consultants International, LLC, a Puerto Rico registered Limited Liability Corporation (the “Consultant”), and Elizabeth Plaza, residing in Dorado, Puerto Rico (“Plaza”).

WHEREAS, the Company, Consultant and Plaza have entered into that certain Consulting Agreement, effective as of January 1, 2014, as such Consulting Agreement has been and may be amended, restated or otherwise modified from time to time (the "Consulting Agreement"). Capitalized terms used but not defined herein shall have the meaning ascribed to such terms in the Consulting Agreement; and

WHEREAS, the Company, Consultant and Plaza desire to modify the Consulting Agreement.

NOW THEREFORE, for good and valuable consideration, the receipt and adequacy of which is hereby acknowledged, the parties hereto agree as follows:

This agreement shall be extended through December 31, 2017. For purposes of this Agreement, “Extension Term” shall mean the period from January 1, 2017 through December 31, 2017.

For the full and proper performance of this Agreement, the Company agrees to compensate Consultant a monthly retainer of $31,500 during the Extension Term.

IN WITNESS WHEREOF, the parties have executed this Amendment in Dorado, Puerto Rico, this 17th day of January, 2017.

PHARMA-BIO SERV, INC.     By: /s/ Pedro J. Lasanta Name: Pedro J. Lasanta Title:  Chief Financial Officer and Vice President- Finance and            Administration and Secretary

STRATEGIC CONSULTANTS INTERNATIONAL LLC:     By: /s/ Elizabeth Plaza Name: Elizabeth Plaza Title: Consultant     /s/ Elizabeth Plaza Elizabeth Plaza, individually