H.I.G. Infrastructure Acquires Controlling Interest in Northern Biogas

Northern Biogas Acquires Three Dairy RNG Projects with Support from H.I.G. Capital

February 6, 2023

Renewable Energy

Northern Biogas, a portfolio company of H.I.G. Capital, has acquired three dairy renewable natural gas (RNG) projects in the United States, expanding its RNG production capacity and development pipeline. The additions sit close to Northern Biogas' existing footprint and are expected to begin commercial service by Q1 2024, creating operational and commercial synergies.

H.I.G. Infrastructure Acquires Controlling Interest in PolarDC Group

October 7, 2024

Infrastructure

An affiliate of H.I.G. Capital’s infrastructure strategy has acquired a controlling interest in PolarDC Group Limited, a European developer, owner and operator of high-performance computing (HPC) data center infrastructure. Polar’s first data center in Norway will offer up to 48MW of capacity, powered by 100% renewable hydroelectric power, and early investor LIAN Group will retain a minority stake as H.I.G. supports delivery of Polar’s near-term project pipeline to serve AI/HPC demand.

H.I.G. Infrastructure Acquires Controlling Interest in Greenflash Infrastructure

September 25, 2024

Renewable Energy

An affiliate of H.I.G. Capital (H.I.G. Infrastructure) has acquired a controlling interest in Greenflash Infrastructure, LP, a Houston-based developer and operator of grid-scale energy storage and power generation projects. The investment will provide capital and operational support to accelerate Greenflash's pipeline of brownfield and greenfield energy storage and controllable load projects serving utilities and municipal cooperatives.

H.I.G. Infrastructure Acquires Controlling Stake in Fluo Group Oy

August 20, 2025

Environmental Services

An affiliate of H.I.G. Capital’s infrastructure platform has acquired a controlling interest in Fluo Group Oy, a Finnish circular-economy waste management and recycling platform headquartered in Kokkola. H.I.G. will partner with Fluo’s management to accelerate service and geographic expansion across Finland, invest in sustainable waste infrastructure, and pursue buy-and-build add-on opportunities.

H.I.G. Capital Acquires Northwest Pump and Equipment Co.

November 22, 2024

Industrial Services

H.I.G. Capital, through an affiliate, has completed the acquisition of Northwest Pump and Equipment Co., a distributor and service provider to fueling stations, EV charging infrastructure and other industrial customers across the Western United States. The company, founded in 1959, operates approximately 20 branch locations with ~350 employees and serves nearly 6,000 customers; H.I.G. intends to support organic and inorganic growth to expand product and service offerings and geographic density.

Ares Management Acquires Dynamic Renewables with Minority Investment from NorthWestern Energy

July 26, 2023

Renewable Energy

A fund managed by Ares Management's Infrastructure Opportunities strategy has acquired Dynamic Renewables, a U.S.-based developer, owner and operator of anaerobic digestion and renewable natural gas (RNG) projects. An unregulated affiliate of NorthWestern Energy also took a small minority stake; the investments will support development, construction and expansion of Dynamic's pipeline and operating assets, including the BC Organics facility in Wisconsin.