Seal Shield Acquires CleanSlate UV (Limestone Labs, Inc. dba CleanSlate)

Data Clean (Angeles Equity Partners Portfolio Company) Acquires Sealco LLC

November 15, 2023

Environmental Services

Angeles Equity Partners portfolio company Data Clean Corporation has acquired Sealco LLC, a Richardson, Texas-based critical environment cleaning business that serves data centers across the South and Southeast U.S. The add-on expands Data Clean’s contamination-control capabilities and extends its geographic presence into the Southeast data center market; terms were not disclosed.

Handshake Acquires Cleanlab

January 29, 2026

AI & Machine Learning

Handshake has acquired Cleanlab to integrate Cleanlab’s data-quality, confident learning, and LLM-evaluation research and technologies into Handshake’s talent and AI services. The acquisition positions Handshake to offer stronger data-quality and model-evaluation capabilities to frontier AI labs and enterprise customers, while Cleanlab’s open-source package will remain available under a more permissive Apache-2.0 license.

Solmetex, LLC Acquires DryShield, Inc.

April 11, 2022

Medical Devices

Solmetex, a dental waste-management platform and portfolio company of Avista Capital Partners, has acquired DryShield, a maker of in-treatment dental isolation devices. The deal expands Solmetex's product portfolio (alongside recent Sterisil acquisition) to offer complementary patient-safety and treatment-focused technologies to dental practices and DSOs; financial terms were not disclosed.

Sunset Capital Assets Acquires Aphex BioCleanse Systems

July 31, 2020

Manufacturing

Sunset Capital Assets Inc. completed a share exchange to acquire Aphex BioCleanse Systems Inc., effective July 31, 2020. The transaction resolved prior judicial liens on the predecessor balance sheet and Sunset will operate forward as Aphex, continuing commercialization of the company's Hy‑IQ disinfectant formulation.

Stellex Capital Management Acquires Crest Ultrasonics

October 3, 2025

Manufacturing

Stellex Capital Management, a New York-based private equity firm, has acquired Crest Ultrasonics, a global manufacturer of ultrasonic cleaning and welding equipment with operations in the United States, Europe and Asia. Stellex said it will partner with Crest's management to drive operational improvements, accelerate growth initiatives and expand the company's global footprint; terms were not disclosed.

Henry Schein Acquires Majority Interest in Shield Healthcare

October 17, 2023

Healthcare Services

Henry Schein completed the acquisition of a majority interest in Shield Healthcare, a Valencia, California-based supplier of homecare medical products that had approximately $180 million in 2022 net sales. The current owners, including management, will retain a minority stake; financial terms were not disclosed and Henry Schein expects the deal to be neutral to 2023 non-GAAP EPS and accretive thereafter.