Generac Power Systems Headquarters & Corporate Office

Generac Power Systems

About Generac Power Systems

Generac Power Systems is a Wisconsin-based energy technology and power-equipment company best known for residential standby generators, portable generators, commercial and industrial power systems, battery storage, energy-management technology, and distributed energy solutions. Generac Power Systems, Inc. was founded in 1959, and its global corporate operations remain centered in Waukesha, Wisconsin. (generac.com)

Generac operates through parent company Generac Holdings Inc., a publicly traded corporation listed on the New York Stock Exchange under ticker GNRC. The company has evolved from a traditional generator manufacturer into a broader energy-technology business serving homeowners, businesses, utilities, data centers, industrial customers, and distributed-energy markets. (sec.gov)

Current Generac operations are led by Aaron Jagdfeld, Chairman, President and Chief Executive Officer. As of December 31, 2025, Generac employed approximately 9,400 people, including part-time and temporary employees. The company also maintains manufacturing, engineering, research, warehousing, and commercial operations in the United States and internationally. (sec.gov)

Quick Information

Corporate Phone Number

262-544-4811

This is Generac Holdings Inc.’s current main corporate telephone number listed in its 2026 SEC filings. It is associated with the company’s principal executive offices in Waukesha, Wisconsin. (sec.gov)

Customer Service Number

888-436-3722

Also written as:

888-GENERAC

Generac publishes this as its primary U.S. and Canada customer-support number. Customer and technical support are available 24 hours a day, 365 days a year. (generac.com)

Corporate Office Address

Generac Holdings Inc. / Generac Power Systems, Inc.
S45 W29290 Highway 59
Waukesha, WI 53189
United States

Headquarters Address

Generac Holdings Inc.
S45 W29290 Highway 59
Waukesha, WI 53189
United States

Generac’s current 2026 SEC filings identify this address as the company’s principal executive office. (sec.gov)

Email

Investor Relations: investorrelations@generac.com

Privacy: privacy@generac.com

Media / Corporate Communications: CorporateCommunications@generac.com. (generac.com)

Industry

Power Generation, Energy Technology, Battery Storage, Residential Backup Power, Commercial and Industrial Power, Energy Management and Distributed Energy Resources

Founded

1959

Generac Power Systems was founded in Wisconsin and has maintained its headquarters in the Waukesha area throughout its history. (generac.com)

Current CEO

Aaron Jagdfeld

He serves as:

Chairman, President and Chief Executive Officer. (generac.com)

Number of Employees

Approximately 9,400 employees

This figure is from Generac’s fiscal 2025 Form 10-K and includes part-time and temporary employees. Approximately 4,200 were directly or indirectly involved in manufacturing. (sec.gov)

Stock Listing

New York Stock Exchange

Ticker:

GNRC. (sec.gov)

Corporate Office Hours

Generac does not prominently publish public walk-in hours for its Waukesha headquarters.

Customer and technical support, however, are available 24/7/365 through the main support number.

Website

https://www.generac.com/

Investor Relations

https://investors.generac.com/

Careers Page

https://www.generac.com/about/careers/

Generac Power Systems Products & Services

Generac offers products and services for residential, commercial, industrial, grid-services, energy-storage, and distributed-energy applications.

Home Standby Generators

Generac is widely known for permanently installed residential standby generators.

These systems automatically provide backup electricity when utility power fails and are available in different output capacities depending on the size and power requirements of the home.

Portable Generators

Generac manufactures portable generators for residential backup, jobsites, recreation, construction, and emergency use.

Portable units are available in multiple wattage ranges and fuel configurations depending on the model.

Residential Backup Power Systems

Generac provides complete home backup solutions that can combine standby generators, transfer equipment, monitoring, and energy-management technology.

These systems are designed to automatically restore selected or whole-home electrical loads when grid power is interrupted.

PWRcell Battery Storage

Generac’s PWRcell platform provides residential battery-energy storage.

The current PWRcell 2 ecosystem can support modular battery capacity and integration with solar, home standby generation, and Generac energy-management technology. (generac.com)

PWRcell Inverter

The PWRcell inverter manages the flow of electricity between batteries, solar generation, household loads, and the electrical grid.

The platform is designed to support backup power and energy-management applications.

Solar Integration

Generac’s home-energy products support integration with solar-generation systems.

Solar energy can be stored in compatible batteries and used for backup or household energy-management purposes depending on system configuration.

Smart Disconnect Switch

Generac’s Smart Disconnect Switch works within the PWRcell ecosystem to manage transitions between utility power, battery backup, solar, and supported generator systems.

The technology is designed to improve resilience during outages. (generac.com)

EV Charging Solutions

Generac participates in electric-vehicle charging and home-energy applications.

Compatible energy systems can help homeowners coordinate EV charging with residential energy usage, battery storage, and other power-management needs.

Commercial Generators

Generac manufactures backup-power equipment for offices, retail facilities, healthcare operations, telecommunications, hospitality, and other commercial buildings.

Systems vary in capacity and can be configured for standby and mission-critical applications.

Industrial Power Systems

Generac provides industrial generator systems for manufacturing facilities, data centers, infrastructure, utilities, large commercial operations, and other critical environments.

The company continues expanding manufacturing capacity for large-scale commercial and industrial power systems. (generac.com)

Data Center Power Solutions

Generac is expanding its presence in backup power and related infrastructure for data centers.

Its industrial portfolio includes large generators, control systems, switchgear, and other products for high-reliability power applications.

Switchgear

Generac provides switchgear and electrical-control solutions used to distribute and manage power in commercial and industrial environments.

The company’s 2026 expansion strategy has included additional switchgear capabilities for data centers and other mission-critical applications. (generac.com)

Distributed Energy Resources

Generac develops products and software that help customers participate in distributed-energy systems.

These solutions can coordinate generators, energy storage, loads, and other energy resources.

Virtual Power Plant Solutions

Generac works with distributed-energy and demand-response partners to combine customer energy assets into virtual power plant programs.

In 2026, Generac and CPower announced expanded distributed-energy-resource collaboration for commercial and industrial users. (generac.com)

Mobile Link

Mobile Link allows owners of compatible Generac generators to remotely monitor generator status.

Users can receive information about operating condition, maintenance needs, and system alerts through supported connected services.

Generator Maintenance

Generac provides maintenance guidance, parts, documentation, and dealer-supported service for its generators.

Regular maintenance can include oil, filters, batteries, spark plugs, inspection, and exercise-cycle checks depending on the equipment.

Generator Warranty Support

Generac offers product warranties that vary according to product type and model.

Customers can register products online and use Generac’s support system or an authorized service provider for qualifying warranty diagnosis and repair. (generac.com)

Parts and Accessories

Generac sells replacement parts and accessories for compatible generators and other equipment.

Products can include maintenance kits, covers, cords, batteries, filters, transfer equipment, and other components.

Authorized Dealer Network

Generac works with independent authorized dealers for sales, installation, maintenance, troubleshooting, and warranty service.

Customers can use Generac’s dealer locator to identify nearby authorized providers.

Product Registration

Owners can register eligible Generac equipment online.

Registration helps activate or document warranty information and makes product-specific support resources easier to access. (generac.com)

Manuals and Technical Documentation

Generac provides owner manuals, specifications, FAQs, parts information, how-to videos, and other documentation through its online support platform.

Customers can search by product or serial number.

Support Case Tracking

Generac customers can use its online support system to monitor correspondence and active support requests.

This helps users track unresolved customer-service or technical issues. (generac.com)

Generac Power Systems Corporate Phone Numbers

Corporate Phone Number

262-544-4811

This is Generac Holdings Inc.’s current main corporate office number. It is listed with the principal executive office in Waukesha in current SEC filings. (sec.gov)

Corporate Headquarters Number

262-544-4811

Customers and business contacts needing corporate-level routing can use this number for the Waukesha headquarters. It should not replace the dedicated customer-support number for ordinary product assistance.

Headquarters Number

262-544-4811

This number connects to Generac’s principal executive office and is the most appropriate verified corporate headquarters number.

Corporate Office Number

262-544-4811

This telephone number is associated with Generac Holdings Inc. rather than a specific dealer or local service provider.

Customer Service Number

888-436-3722

Generac’s main U.S. and Canada support line handles product, service, technical, registration, warranty, and general customer-assistance inquiries. Support is available 24/7/365. (generac.com)

Technical Support Number

888-436-3722

Customers experiencing operating problems can begin with this number. Depending on the product and issue, Generac may connect the customer with an authorized service dealer for diagnosis or repair.

Warranty Support Number

888-436-3722

Generac uses its central support line for many warranty-related inquiries. Warranty repairs frequently involve an authorized Generac service provider who coordinates with Generac Technical Services. (generac.com)

Product Registration Support Number

888-436-3722

Customers having trouble registering equipment can contact Generac through this main support line or use the online product-registration platform.

Home Standby Generator Support Number

888-436-3722

Home standby customers can use this number for product information, troubleshooting, warranty questions, and assistance locating service providers.

Portable Generator Support Number

888-436-3722

Portable-generator owners can use the same central Generac support line for product documentation, parts information, and troubleshooting assistance.

Commercial and Industrial Support Number

888-436-3722

Commercial and industrial customers can start with Generac’s main support line, which routes inquiries according to customer type and equipment category.

International Number

1-262-544-4811

Generac publishes this number for callers outside the United States and Canada. It is also the company’s main Waukesha corporate telephone number. (generac.com)

Investor Relations Number

262-506-6064

This number is specifically for Generac Investor Relations. Current IR materials identify CFO York Ragen as the primary Investor Relations contact. (investors.generac.com)

Investor Relations Email

investorrelations@generac.com

This email should be used for shareholder, securities, financial-reporting, and investor-related inquiries rather than product support.

Media / Press Number

815-222-3011

Generac has used this current Corporate Communications phone contact in 2026 announcements. Media inquiries can also be directed to CorporateCommunications@generac.com. (generac.com)

Privacy Number

888-436-3722

Generac’s privacy notice lists this telephone number alongside its Legal Department privacy contact information. Privacy inquiries can also be sent to privacy@generac.com. (generac.com)

Transfer Agent Number

877-373-6374

Generac shareholder materials identify Computershare as the transfer agent and registrar. This toll-free number is intended for shareholder-account and transfer-agent matters rather than ordinary investor analysis or product service. (sec.gov)

Additional Transfer Agent Number

800-962-4284

This additional Computershare contact appears in Generac shareholder information and can be used for eligible transfer-agent inquiries.

Sales Number

888-436-3722

Generac does not use one universal nationwide direct-sales number for every product category. The main line can help customers find appropriate dealers, products, or estimate resources.

Billing Number

Generac does not publish one universal consumer billing department number.

Billing concerns connected with dealer installation should normally begin with the dealer involved, while Generac product-support issues can be directed to 888-436-3722.

Regional Office Number

Generac does not publish one universal regional-office number.

Local dealer and service-provider contacts can be found through Generac’s authorized dealer network.

Emergency / After-Hours Number

888-436-3722

Generac’s support line is available 24/7/365. Immediate fire, carbon-monoxide, electrical, or life-safety emergencies should still be reported to emergency services rather than relying solely on product support.

Human Resources Number

Generac does not prominently publish one universal applicant HR number.

Careers and current openings are available at:

https://www.generac.com/about/careers/

How to Reach a Real Person at Generac

For most generator, battery, warranty, product-registration, technical, or service questions, call 888-436-3722. Generac states that its support operation is available 24 hours a day, 365 days a year. Have the product model, serial number, installation date, dealer details, error code, and warranty information ready when possible. (generac.com)

For a home standby generator requiring physical repair, Generac may refer the customer to a certified service provider. Warranty diagnosis and repair commonly require coordination between the local authorized dealer and Generac Technical Services, so retaining service records and prior case numbers is useful. (support.generac.com)

Generac Power Systems Headquarters & Corporate Office Address

Global Headquarters

Generac Holdings Inc.
S45 W29290 Highway 59
Waukesha, WI 53189
United States

Corporate Phone: 262-544-4811

Generac’s September 2026 SEC filing continues to identify this as the principal executive office. (sec.gov)

Headquarters History

Generac’s global headquarters has been located in Waukesha County since the company was founded in 1959.

The company has stated that Waukesha remains its primary location for corporate operations and research and development. (generac.com)

Current CEO

Aaron Jagdfeld

Jagdfeld currently serves as Chairman, President and Chief Executive Officer and continues to lead Generac’s expansion from backup-generation products into broader energy technology. (generac.com)

Current CFO

York Ragen

Ragen serves as Chief Financial Officer and is also listed as the primary Investor Relations contact.

Current Employee Scale

At December 31, 2025:

Approximately 9,400 employees

including part-time and temporary employees. (sec.gov)

Manufacturing Workforce

Approximately:

4,200 employees

were directly or indirectly involved in manufacturing at the end of 2025. (sec.gov)

Manufacturing Footprint

Generac’s August 2026 investor presentation identified:

19 manufacturing facilities globally

including:

5 Wisconsin manufacturing locations. (investors.generac.com)

Wisconsin Expansion

In 2026, Generac continued expanding commercial and industrial manufacturing capacity in Wisconsin, including a newly acquired Sussex facility, additional Beaver Dam capacity, and expanded Oshkosh operations. (generac.com)

Stock Listing

Generac Holdings Inc. trades on:

NYSE

Ticker:

GNRC

How to File a Complaint Against Generac

Customers filing a complaint involving a generator, battery system, installation, warranty, service dealer, defective product, parts, repair delay, or technical-support experience should gather the model number, serial number, purchase date, installation records, dealer information, service reports, photographs, invoices, and any previous Generac case numbers.

Step 1: Contact Generac Customer Support

Call 888-436-3722 and explain the issue clearly. Provide the model and serial number, purchase or installation date, error codes, and information about any dealer or technician already involved. Ask the representative to create or update a formal support case and retain the case number. Generac also provides online support forms and a support-case tracker for ongoing correspondence. (generac.com)

Step 2: Contact the Authorized Generac Dealer or Service Provider

If the complaint involves installation, maintenance, or physical repair, contact the authorized dealer or service company involved. Many warranty claims require dealer diagnosis before Generac can approve repairs or parts. Obtain written service findings, invoices, photographs, and records of replacement parts so the complaint can be reviewed accurately. (support.generac.com)

Step 3: Request Additional Technical or Warranty Review

If the dealer and first-line support do not resolve the issue, contact Generac again at 888-436-3722 and request further technical or warranty review. Provide the previous case number and dealer findings so the company can review the history without restarting the entire process.

Step 4: Send Formal Written Correspondence to Generac

For a serious unresolved matter, written correspondence can be sent to Generac Power Systems, Inc., S45 W29290 Highway 59, Waukesha, WI 53189. Include your full contact information, serial number, dealer details, purchase records, service history, previous case numbers, and the outcome requested. Keep copies of all supporting material and proof of delivery. (generac.com)

Step 5: Use the Appropriate External Complaint Process if Necessary

If the matter remains unresolved, the appropriate external process depends on the issue. Consumer warranty disputes may involve the applicable state consumer-protection office or Attorney General, payment disputes may involve the card issuer or finance provider, and product-safety concerns can be reported to the U.S. Consumer Product Safety Commission when appropriate. Installation or electrical-code disputes may also involve local licensing or inspection authorities. Preserve all service reports, invoices, photographs, and company responses before escalating.

tony jake

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