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The Principals

David Pearson

Graduated from Oxford University in Engineering Science. He spent 10 years with PCI Membranes in sales management and marketing roles in the UK before moving to the United States in 1997 to be the General Manager of PCI Membrane Systems Inc. He held that and similar positions until forming Membrane Specialists LLC.
Office: 513-860-9490, x112
Mobile: 414-477-5755

Lewis Pain

Graduated in Environmental Chemical Engineering from Exeter University in the UK. He came to the United States in 1983 as a technical liaison between PCI Membranes in the UK and the US distributor, and he worked for PCI in the US until Membrane Specialists LLC was established. During his time at PCI, his responsibilities included sales management, marketing, commissioning, and process development.
Office: 920-923-5869
Mobile: 513-379-5226

David Pearson (left) and Lewis Pain (right).

Together, the partners behind Membrane Specialists offer over 70 years of experience of working with a broad range of membrane technologies including the proprietary PCI membrane product line. They are highly skilled in helping customers develop new membrane-based processes and have been involved in varied projects in such diverse markets as bio-fuels & bio-products, food & beverage, industrial effluent, pulp & paper and water treatment.