Sea Lion Corporation Acquires Proto Technologies, Inc.

RE3DTECH + GoProto Acquires Phoenix Proto Technologies

March 16, 2023

Manufacturing

RE3DTECH + GoProto, a CORE Industrial Partners portfolio company, has acquired Phoenix Proto Technologies, a Michigan-based provider of rapid tooling, injection molding, CNC machining and additive manufacturing services. The acquisition expands RE3DTECH's in-house injection molding capabilities, enabling a broader offering from prototyping through production for customers in medical, aerospace & defense, consumer and industrial end markets.

Snow Phipps Group Acquires Prototek Holdings LLC

September 30, 2020

Manufacturing

Snow Phipps Group has completed a buyout of Prototek Holdings LLC from CORE Industrial Partners. Prototek is a national provider of precision CNC machining and sheet metal fabrication for rapid prototyping and low-volume production across end markets including aerospace, defense and medical; Snow Phipps intends to support organic and acquisition-driven growth.

RE3DTECH (CORE Industrial Partners) Acquires GoProto

June 22, 2022

Manufacturing

CORE Industrial Partners’ portfolio company RE3DTECH has acquired GoProto, combining the additive and traditional manufacturing capabilities to form a scaled additive manufacturing platform focused on production parts and Industry 4.0 capabilities. The deal brings GoProto’s multi‑jet fusion, SLS, SLA, polyjet and FDM capabilities together with RE3DTECH to expand production-grade additive manufacturing capacity across medical, aerospace, automotive and other end markets.

Sinclair & Rush Acquires Protoco Enterprises

August 21, 2025

Manufacturing

Arnold, Missouri-based Sinclair & Rush, Inc. has acquired Protoco Enterprises, LLC, a family-owned dip and injection molding and vacuum-formed storage and organization products manufacturer headquartered in North Plains, Oregon. The acquisition expands Sinclair & Rush's manufacturing capabilities and resources to support Protoco's customers and preserve its product lines; financial terms were not disclosed.

Prototek Acquires Midwest Prototyping

July 19, 2021

Manufacturing

Prototek Holdings LLC completed the acquisition of Midwest Prototyping LLC on July 15, 2021, creating a broader one-stop provider for prototyping and low-volume digital manufacturing. The deal brings additive manufacturing capabilities to Prototek’s existing sheet metal and CNC services, expands geographic coverage, and combines workforces to serve aerospace, defense, medical and industrial end markets.

Eagle Fire Acquires Liberty Fire Solutions and Pro‑Tec Fire Solutions

October 23, 2023

Industrial Services

Eagle Fire Inc., a portfolio company of Rosewood Private Investments, has acquired Virginia-based fire protection firms Liberty Fire Solutions and Pro‑Tec Fire Solutions. The add-on deals expand Eagle Fire’s service capabilities and strengthen its presence in Southwest and Central Virginia, offering broader inspection, service, installation and monitoring support for industrial, commercial and government customers.