Sartorius Acquires WaterSep BioSeparations

Thermo Fisher Scientific Acquires Solventum's Purification & Filtration Business

September 2, 2025

Manufacturing

Thermo Fisher Scientific completed the acquisition of Solventum's Purification & Filtration business for approximately $4.0 billion in cash. The divested business—now Thermo Fisher's Filtration and Separation business—adds bioprocessing filtration, industrial filtration and membrane technologies to Thermo Fisher's Life Sciences Solutions portfolio and is expected to generate about $750 million in revenue in 2025.

HKW Acquires Sepratech Liquid Solutions

July 14, 2025

Industrial Services

HKW, a middle-market private equity firm based in Indianapolis, has acquired Sepratech Liquid Solutions, an industrial water and wastewater treatment services provider headquartered in Gonzales, Louisiana. HKW said the acquisition will support Sepratech’s growth initiatives across marketing, sales and operations while maintaining the company’s regulatory, safety and environmental standards.

Sartorius Stedim Biotech Acquires Polyplus

April 13, 2023

Biotechnology

Sartorius Stedim Biotech agreed to acquire Strasbourg-based Polyplus (Polyplus‑transfection S.A.) for €2.4 billion, pending customary regulatory approvals. The transaction buys the business from private equity backers including ARCHIMED and Warburg Pincus and strengthens Sartorius’s cell & gene therapy reagent and upstream bioprocessing portfolio.

BioStem Technologies Acquires BioTissue's Surgical and Wound Care Business

January 22, 2026

Medical Devices

BioStem Technologies (OTC: BSEM) has acquired the surgical and wound care business of BioTissue Holdings, Inc. for approximately $15 million upfront, with up to $25 million of contingent milestone and royalty payments. The deal includes the Neox and Clarix product lines, a nationwide commercial sales organization and assigned GPO contracts, expanding BioStem's access into hospital inpatient and outpatient wound-care markets and adding assets that generated roughly $29 million in 2025.

CatSci Acquires Reach Separations

June 25, 2024

Healthcare Services

CatSci Ltd, backed by Keensight Capital, has acquired Reach Separations, a specialist chromatography provider headquartered in the United Kingdom. The deal expands CatSci's CMC and separation science capabilities, enabling end-to-end analytical and purification services from discovery through to manufacture for biotech, pharma and related customers.

3i-backed Bioprocessing Platform Acquires Sani-Tech West, Inc.

July 28, 2020

Biotechnology

3i Group's single-use bioprocessing platform has acquired Sani-Tech West, Inc., a Camarillo, California-based manufacturer and distributor of single-use bioprocessing systems and components. The deal adds Sani-Tech's ~170 employees, cleanroom manufacturing footprint and product lines (bottles, caps, tubing, fittings and assemblies) to 3i's existing platform (including Cellon, Silicone Altimex and TBL), enhancing global manufacturing capacity, supply-chain assurance and product breadth for biopharma customers.