Avitar Inc.

Mr. Phildius has been Chairman of the Company's Board of Directors since October 1990 and Chief Executive Officer since July 1996. He has been a general partner in Phildius, Kenyon & Scott ("PK&S") since the firm's founding in 1985. Prior to 1985, Mr. Phildius was an independent consultant and Chairman and co-founder of Nutritional Management, Inc., a company that operates weight loss clinics (1983 - 1985), President and Chief Operating Officer of Delmed, Inc., a medical products company (1982 - 1983), President and Chief Operating Officer of National Medical Care, Inc., a dialysis and medical products company (1979 - 1981), and held a variety of senior management positions with Baxter Laboratories Inc. ("Baxter"), a hospital supply company and the predecessor of Baxter Healthcare Corporation. During the last eight years of his 18 year career at Baxter (1961 - 1979), Mr. Phildius was Group Vice President and President of the Parenteral Division, President of the Artificial Organs Division and President of the Fenwal Division.

Mr. Scott has been the Chief Operating Officer since July 1996, was the Chief Executive Officer from August 1989 until July 1996 and has been a director of the Company since August 1989. Mr. Scott has been a general partner in PK&S since its founding in 1985. Prior to 1985, Mr. Scott was Executive Vice President of Nutritional Management, Inc. (1983 - 1985); Senior Vice President, Operations of Delmed, Inc. (1982 - 1983); Vice President, Quality Assurance of Frito-Lay, Inc., a consumer products company (1980 - 1982); and held several senior positions at Baxter from 1970 - 1980. The last two of these senior positions at Baxter were General Manager of the Vicra Division and General Manager of Irish Operations. Mr. Scott is also a director of Candela Corporation, a publicly-traded company in the business of manufacturing and marketing medical lasers. Mr. Scott received an M.B.A. from Harvard Business School.

Jay C. Leatherman, Jr. , Chief Financial Officer: Mr. Leatherman has been Chief Financial Officer of the Company since October 1992. He has over 20 years experience in financial management in the healthcare field. Prior to joining Avitar, he was responsible for the financial, management information services and business development functions for a continuing care retirement community and management services company.

Peter N. Cholakis, Vice President of Marketing: Mr. Cholakis has over 20 years of senior marketing experience. He will lead Avitar's marketing function in penetrating the $1.5 billion drugs-of-abuse market with its point-of-care oral fluid drugs-of-abuse test, ORALscreen. Before joining Avitar, Peter Cholakis worked for VFA, a Boston-based enterprise software and services firm as Vice President of Marketing. Prior to that he also held key marketing and sales positions in the high tech product and consultative service markets.

Neil R. Gordon, chief financial officer, began his career with the accounting firm of Haskins & Sells in 1969 and served as director, finance and accounting, of Empire of Carolina, Inc., from 1979 until 1982. He was then associated with Centronics Data Computer Corp., a computer peripherals manufacturer, and Ekco Group, Inc., a leading consumer products manufacturer and marketer, for fourteen years, including eight years as the company's treasurer, before establishing N.R. Gordon & Company, a financial services consulting firm, in 1995. Mr. Gordon serves on the board of directors of Avitar, Inc., and Datameg Corporation, as chief financial officer of Decent Energy, Inc., operator of the Cambridge Clean Energy Incubator, on the board of directors and as treasurer of Official Software, Inc., and as an advisor to a number of emerging companies. Mr. Gordon was an advisor to Case Shiller Weiss, Inc., from 1998 until its acquisition by Fiserv, Inc. He holds a BS in accounting from The Pennsylvania State University.