About Us

Brook headquarters

Brook Electrical Supply has been a supplier to the Electrical, Construction, and Commercial markets for over 80 years. Our commitment to customer satisfaction, well-trained associates, and quality product lines are the cornerstone of our long history. In April 2000 Brook Electrical Supply was acquired by Sonepar Distribution USA.

Sonepar is the #1 distributor of electrical products in the United States and is a member of the global Sonepar Distribution group, which is the world's largest, privately held electrical distributor.

Your Brook Lighting Team:
Brook Lighting has the resources you need to manage your lighting projects. We have proudly served the Contractor, Builder, and Designer markets for over 80 years. Brook Lighting is capable of providing timely and accurate lighting quotations and buys. We take pride in providing same day take offs and lighting submittals. Once the job is awarded we strive to be the best in class at project management. We will customize job services to meet all customer needs.

Your Brook Data Team:
Brook Electrical Supply recognizes the ever-changing world of electronic communication and computerization. Our team strives to be the best in class when it comes to providing the right solutions to today's technological needs and challenges.

Your Brook Gear Team:
The Switchgear Team provides equipment for Private, Public and Design Build Projects. With our complete range of circuit breaker and switchgear systems Brook sets the standards when it comes to reliable and efficient solutions.

Your Brook Powersource Tool Shop:
Rely on Brook Electrical Supply for all your conduit bending, cable pulling, cutting, power tools, hand tools and safety needs. Not only do we have a large variety of power and hand tools we have all the accessories that go with them. All of our branches carry a wide variety of power and hand tools.  Our knowledgeable staff will recommend the right tool for every job application.

Your Brook Energy Services:
The Brook Energy Services Team will help you identify the areas that can significantly lower your energy costs. The Brook Energy Services division stands as your solution for property management, building maintenance solutions and energy efficiency projects.  It all starts with a free assessment of your facility by one of our energy specialists.

Your Brook eCommerce:
Brook eCommerce provides multiple tools to get the job done. These capabilities will boost your productivity at every stage in the supply chain process and every time you transact business with us. Brook eCommerce is available 24/7.

Why Look to Brook?

Over 20,000 Stock Items
Our Central Distribution Center is fully stocked with over 20,000 stock items that reflect a comprehensive offering for the construction, commercial, industrial, data communication, MRO and institutional markets. We carry everything from electrical and data to all the miscellaneous items you need to complete your job.

We deliver daily from Southern Wisconsin to Northern Indiana and from East Chicago to Moline. We can serve your business anywhere in the world through our Sonepar Network.

Emergency Delivery
Emergencies happen. Call us at 847-313-8626. We guarantee a response within one hour.

On-Time Deliveries
Our flexibility is key to your success. 24-hour operation and our large delivery fleet ensure accurate, on-time deliveries. We use electronic signature capturing devices for real time tracking of your order.

Brook Specialists
Take advantage of our extensive and knowledgeable staff. You will receive expert assistance in product selection, quotation and project management for Distribution Equipment, Lighting, Data, Energy Savings and any other electrical need.

Brook Customer Response
All of our associates, from sales and customer service to operations and logistics, are trained to "Listen First" and develop solutions that fit our customer's needs. By listening first, Brook has developed programs such as customer inventory consolidation and energy audits. By listening and understanding your needs we have also made inventory adjustments to include 1000 disconnects and control products in stock and perform more than 350 wire cuts per night.

About Sonepar USA

Sonepar USA is an independent, family-owned company with global market leadership in the B-to-B distribution of electrical, industrial and safety products, services and solutions. We are a proud member of the Sonepar Group, the world's largest privately-held electrical distributor. Sonepar entered the US in 1998 and has continued to grow due to strategic acquisitions and organic growth. Today, Sonepar USA is represented by 14 locally-managed operating companies with over 700 locations nationwide. For more information, visit soneparusa.com.

About The Sonepar Group

Sonepar is an independent family-owned company with global market leadership in B-to-B distribution of electrical products, solutions and related services. Assisting customers in a wide range of markets and drawing on the skill and passion of its 46,000 associates, Sonepar has sales of €22.4 billion (as of December 31, 2018). Through a dense network of 170 operating companies spanning 44 countries and 5 continents, and the digital solutions developed, the Sonepar Group delivers greater service and enhanced customer relations every day. Sonepar’s ambition is to become “La Référence” - the standard-setter for all its stakeholders. For more information, visit sonepar.com.

Sonepar Code of Conduct

"Compliance is everyone's responsibility at Sonepar, every day in everything we do."

- Philippe Delpech, CEO of Sonepar