Turn to us for all your HR needs

Group Management Services (GMS) is your professional employer organization (PEO) partner. As a PEO, we provide comprehensive human resources management services to growing businesses across the United States. From payroll and benefits to workers’ compensation and workplace safety, we can handle all of your HR needs so you can focus on what you do best: running your business.

Contact GMS

What we offer

You need payroll, benefits and HR solutions that empower your people and support your growth. We provide a suite of PEO HR services to help you manage your employment tasks.

Benefits

Retaining and attracting quality employees is vital for growth, but that can be easier said than done. GMS provides access to comprehensive, cost-effective benefits packages that help you compete for top talent while easing the administrative burden.

Human Resources

HR is one of the most time-consuming components for any business to manage. GMS offers dedicated PEO HR services that allow you to focus on running and growing your business.

Risk Management

Many businesses struggle to stay ahead of the risks associated with workplace hazards and injuries. GMS delivers workplace safety programs, compliance guidance, and workers’ compensation management to keep your team protected and your business compliant.

Payroll

Managing payroll and tax filings can be one of the most challenging parts of running a business. GMS simplifies payroll processing with accurate, secure systems and expert support that reduce errors and ensure compliance.

View all services

Welcome to GMS

We’re a certified professional employer organization and have been servicing small to midsize businesses since 1996. We have expertise in benefits, payroll, human resources management, risk management, and benefits administration.

GMS has offices across the country, giving you local support backed by national resources.

Seamlessly blending proprietary HR technology with dedicated service & support

At GMS, we use a human resources information system (HRIS), which is software to collect and report all employee data in a centralized hub. This proprietary technology helps businesses save time, money, and resources.

Increase your operational efficiencies

Enhance your employees’ experiences

Improve your bottom line today

Learn about our technology

Understanding PEOs

Wondering how a PEO can help your business? Our resources can assist you in making an informed decision about outsourcing HR responsibilities to PEO companies.

Explore our resources

Recent blog posts

Check out our blog to learn all about PEOs, human resources, risk management, payroll management, and more from the experts at Group Management Services. Be sure to subscribe for the most up-to-date news and legislation.

employer procedures | HR | Technology

Thu. Oct. 09, 2025
— 3 minute read —

The Benefits of Implementing an HRIS System

One of the most important tools that business owners can use to enhance efficiency and support their goals is a Human Resources Information System (HRIS)

employer procedures

Tue. Oct. 07, 2025
— 3 minute read —

A Business Owner’s Guide to Year-End Performance Reviews

As the year comes to a close, many business owners and managers are preparing for . . .

employer procedures | HR

Thu. Oct. 02, 2025
— 3 minute read —

Understanding Employee Burnout and How to Manage It

Employee burnout remains a growing concern affecting the productivity and morale of the workforce.

employer procedures

Tue. Sep. 30, 2025
— 3 minute read —

Tips for Managing Seasonal Employees Effectively

Seasonal workers play a crucial role in helping businesses handle spikes in demand during busy . . .

Visit the blog

Hear What Our Customers Have to Say

We came from another management company and GMS straightened out our workers’ compensation problems and saved us money in administrative costs and workers’ compensation costs. We are very pleased with their services.

— Roofing Organization

Everything is under one roof when you partner with GMS. Whenever I have a question or concern, I know exactly who to call, as there’s only one point of contact. There’s no more 1-800 number. GMS is a company that can help you and your business be more competitive. I honestly can’t think of a reason not to partner with GMS.

— FedEx Contractor

Our experience with the payroll managers and payroll processing services has been fantastic. We’ve been extremely pleased. GMS has been an invaluable resource. In addition, GMS assisted in implementing the Drug-Free Workplace and PDP programs. Without GMS, we would have never accomplished our goals. In short, our partnership with GMS and its staff has been a rewarding experience.

— Health Care Organization

We are coming up on our first anniversary with GMS, and this year has been incredible. Customer service is extraordinary, and their attention to detail is excellent. I would highly recommend their services to all sizes of companies.

— Construction Management

GMS has reduced my stress level while saving me money by consolidating payroll, workers’ compensation, benefits, and other HR functions into a single source. I have been pleased with the decision since day one.

— Health Care Organization

Having GMS administer our payroll, healthcare benefits, workers’ compensation, and assisting with human resources management has enabled us to focus our own resources on our core business of making quality aluminum extrusions. The contacts that I use at GMS are knowledgeable, professional, and provide accurate information in a timely manner.

— Manufacturer

I love GMS, and they are easy to work with when you see just how great the service is. I always tell people that someone buys why you make something, not what you make. GMS provides turn-key support to the major functions of a business, all while saving the client’s money.

— Health Care Organization

Awards & Recognition

Make Your Business Simpler, Safer, and Stronger.

Let’s get in touch