(949) 679-3535


Dennis L. Pfeiffer
Vice President/General Manager

Dennis is the vice president and general manager of Tide International USA, Inc. He is responsible for the operation and direction of the company.

Charles Guo
Director of Product Development

Charles is responsible for research and development activities in the company. His main responsibilities are to identify/develop new products for commercialization and lead the regulatory and registration activities.

Jeff Allison
Key Accounts Manager, Commercial Marketing Lead

Jeff works with key national accounts and third-party partners. He has 30 years’ experience in agriculture, turf & ornamentals, aquatics and pest control.

Doug Albert
Regional Sales Manager, Eastern U.S.

With more than 25 years of experience in the ag industry, Doug works with customers in the Eastern U.S. and has extensive knowledge of the variety of crops and agronomic conditions in this region.

Larry McCauley
Regional Sales Manager, Southeast

Larry brings more than 30 years of agricultural chemical experience in citrus, fruits, vegetables, rangeland and pasture to his job in servicing Tide customers in the Southeast.

Luz Gudino-Rowe
Office Manager/Business Administrator
949-679-3535 Ext. 227

Luz is the office and human resources manager for Tide International USA, Inc, in its Irvine, California headquarters. She is the contact person for accounts receivable, accounts payable and credit references.

Hollis Campbell
Krop-Max Sales Agent

Hollis is a Tide USA sales agent located in Fresno, California. He is responsible for the sales and service of Krop-Max, hydrogen cyanamide growth regulator.

Yolanda Boyd
Customer Service/ Assistant Office Manager
949-679-3535 Ext. 223

Yolanda brings 20+ years of experience in running an office to her role as assistant office manager. Her duties include accounts payable, accounts receivable, human resources, assisting with month-end reports and miscellaneous tasks.

Gina Zarb-Cousin
Customer Service Representative
949-679-3535, Ext. 221

As customer service representative, Gina provides friendly service to Tide customers and makes sure purchase orders are handled promptly and professionally.