About This Deal

DONALDSON Co INC acquired Solaris Biotechnology S.r.l. for approximately EUR 41 million / $45.7 million (net of cash acquired), a transaction completed in November 2021, structured as all cash.

Solaris Biotechnology S.r.l. operates in Life Sciences, is based in Headquartered in Porto Mantovano, Italy; U.S. operations in Berkeley, California. Solaris designs and manufactures bioprocessing equipment, including bioreactors, fermenters and tangential flow filtration systems for use in pharma, food and beverage, biotechnology and other life sciences markets. Headquartered in Porto Mantovano, Italy, with U.S. operations based in Berkeley, California.

Expands Donaldson's bioprocessing equipment offering and establishes a Life Sciences manufacturing base in Europe.

Life Sciences segment (initially reported within IFS / Industrial Products)

Deal Terms

Acquirer
DONALDSON Co INC
Target
Solaris Biotechnology S.r.l.
Value
Approximately EUR 41 million / $45.7 million (net of cash acquired)
Date
November 2021
Type
Full acquisition
Status
Ready

Transaction Details

Target HQ
Headquartered in Porto Mantovano, Italy; U.S. operations in Berkeley, California
Segment
Life Sciences
Structure
All cash
Announced
November 22, 2021
Closed
November 22, 2021

In Their Words

On November 22, 2021, the Company acquired Solaris, headquartered in Porto Mantovano, Italy, with U.S. operations based in Berkeley, California, for cash consideration of approximately EUR 41 million, or $45.7 million, net of cash acquired. Solaris designs and manufactures bioprocessing equipment, including bioreactors, fermenters and tangential flow filtration systems.Donaldson FY2022 10-K, Note 2 Acquisitions

Advisors

Advisory firms were not disclosed for this transaction.

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Sources: Press release ↗ · Last updated July 8, 2026

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