Asahi/America, the leader in thermoplastic fluid flow technology, is pleased to announce several updates to its sales leadership team.

Effective July 1, 2025, Rob Marsiglia has been promoted to Eastern Regional Sales Manager. With over seven years of experience at Asahi/America, Marsiglia brings a wealth of technical and leadership experience to his new role. Most recently, he served as Team Manager for the company’s industrial piping products, where he worked closely with customers to support industrial piping specifications and applications. Based in New Jersey, Marsiglia will now oversee sales operations throughout the Eastern region, continuing to deliver service and support to customers. Rob Marsiglia can be reached at [email protected] or 617-653-0585.

As of May 16, 2025, Ryan Diaz has joined the company as District Sales Manager, responsible for the Southern California, Southern Nevada, and Hawai‘i sales territory. Bringing over 16 years of experience in industrial product sales, Diaz offers deep industry knowledge and a strong customer-centric approach. In his new role, he will focus on supporting distributors and end-users within his territory by providing tailored product recommendations, technical support, and project guidance. Ryan Diaz can be contacted at [email protected] or 714-916-6605.

Effective June 30, 2025, Stephen Harder joins Asahi/America as Business Development Manager, focusing on the semiconductor and microelectronics markets. Harder brings more than 20 years of experience from roles at OEMs and distribution companies, where he specialized in business development for the semiconductor industry. He is based in Portland, OR and will play a key role in expanding Asahi/America’s presence in these high-tech market segments. Stephen Harder can be reached at [email protected] or 971-505-1834.

Rob Marsiglia
Rob Marsiglia, Eastern Regional Sales Manager
Ryan Diaz
Ryan Diaz, District Sales Manager
Stephen Harder
Stephen Harder, Business Development Manager
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