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The Hope Group is an authorized full-line Parker distributor featuring hydraulic, pneumatic, fluid connector, and sealing products for OEM and MRO applications.

Sorensen Systems is a designer/builder of custom systems providing clean water, renewable energy sources, and technologically advanced process systems for industry.

Hope Air Systems is an authorized distributor for Kaeser Compressor featuring energy efficient rotary screw compressors as well as a designer/builder of skid-mounted packaged compressed air systems.

Hope Service can dispatch its field service fleet of vehicles and experienced, factory-trained technicians to provide emergency and routine field service to its hydraulic, electrical, and compressed air systems customers.

The Hope Group owns and operates seven Parker Stores at its branch locations providing "while you wait" replacement of hose assemblies and immediate on-hand access to 3,000 Parker fluid connector parts.

The Hope Group provides 24 hour access to $150 million of Parker parts through its eCommerce website,, offering one or two-day shipping of all your hose & fittings, hydraulic, pneumatic, valve, and filtration needs.

iPower Distribution Group of New England provides supply chain consulting and implementation through streamlined procure-to-pay process, vendor managed inventory (VMI), Kanban, and in-plant buyer-planner services.


Sorensen Systems Home › About Sorensen Systems

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Sorensen Systems LLC is a privately-held company, which is one of three subsidiaries of THG Corporation, a Massachusetts corporation founded in 1933 by the Rhoten family. Today, the Sorensen Systems company operates as the engineering and manufacturing arm of THG Corporation and its other two subsidiaries, The Hope Group LLC and Hope Air Systems LLC. It focuses on the water and waste water industry, the power generation industry and the motion and control and machine control systems marketplace. Its staff of design engineers, technicians and project managers operates from its 60,000 sq ft office and manufacturing location in Northborough, MA.

Association with Parker

Sorensen Systems, as a subsidiary of THG Corporation, is affiliated with The Hope Group, which is an authorized distributor of Parker Hannifin; and for the past 55 years has been a leading provider of fluid power and fluid connector components and sub-systems for the industrial OEM and MRO marketplace in the six New England states. It operates seven Parker Stores, with three in Maine, two in Massachusetts, and one each in New Hampshire and Rhode Island.

Association with Kaeser

The other subsidiary of THG Corporation is Hope Air Systems, which has operated as a distributor and custom manufacturer of packaged compressed air systems for the past 50 years. Originally a division of The Hope Group, today it operates as a separate company under the THG Corporation umbrella. Hope Air Systems is an authorized distributor of Kaeser rotary compressors. It serves the entire six state New England market. It also sells PET packaged air compressor systems worldwide. Sorensen Systems is the design/build entity that produces these packages for Hope Air Systems.

Sorensen Governor Brand

Sorensen Systems was founded in 1985 with the acquisition of the Sorensen Governor brand and immediately became focused on the hydroelectric power industry in New England and for certain applications throughout the world. Today, with representation in the US and Canada, the company continues its expansion into the power generation marketplace. The Sorensen Governor brand is well known throughout the world and its products serve the needs of water and waste water facilities.

Power Generation Market

Sorensen System's primary direct market penetration has been in the hydroelectric power plant market with new installation, refurbishment and station automation as its prime opportunity. With nearly 200 major power plants in New England, the combustion turbine, combined cycle, fossil fuel and nuclear power plants represent an important marketplace for Sorensen Systems. Additionally, it has focused on the engineered system requirements of the emerging motion and control requirements in the semiconductor, pulp & paper, marine, life science, defense and thermal power generation industries.

System Solutions Philosophy

Operating as the engineering and fabrication arm of THG Corporation, Sorensen Systems has an exclusive focus on system design/build. It does not inventory parts, replace or repair components or otherwise operate in the MRO role, which is handled by its associated company, The Hope Group. Rather, it serves as a provider of design/build services to The Hope Group and Hope Air Systems as needed and takes it services directly to the market for the thermal and hydro power generation market, water and waste water distribution market and general motion and control systems for defense, semiconductor, life science and other industrial markets.



When a large Californian municipal pumping station required the installation of a 30 inch stainless steel ball valve and electro-hydraulic operating system, Sorensen Systems was able to respond.


When the Boston Big Dig needed to install six self-contained waste-water treatment and electro-hydraulic control vaults, Sorensen Systems completed the design/build requirements.


mwra-hydroelectric-plant-turbine-feature Sorensen Systems Design/Builds and Installs Innovative Hydroelectric Plant for MWRA

Mike-Gardella   Sorensen Systems Designs Aerospace Fluid Control Test Stand
Mike Gardella
VP Engineering & Mfg

Ray-McCann   Monitoring Operational Conditions In The Palm Of Your Hand
Ray McCann
Fluid Power Specialist

Peter-Rhoten   10 Worst Things You Can Do To Your Air Compressor
Peter Rhoten
Hope Air Systems

Donna-Tibbetts   One of Our Stores is Open 24 Hours a Day!
Donna Tibbetts
Operations & Service Mgr

doug-markham-ipower-new-england   When Should Materials be Stocked at Point of Use?
Doug Markham
President, iPower NE


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