PEO, Payroll & HR Services in Missouri

Partner with a trusted Missouri PEO that provides full-service human resources support — helping small and mid-sized businesses hire, pay, and retain talent while staying compliant with state and federal laws.

Aerial view of Jefferson City, Missouri
Grow 7-9% faster with G&A
Reduce risk with Missouri HR compliance expertise
Save up to $2,000 per employee per year

How a PEO Helps Missouri Businesses Grow

In a state known for its high-growth environment, Missouri businesses understand that scaling successfully requires the right partner. An award-winning professional employer organization (PEO) in Missouri, G&A Partners delivers comprehensive HR services, expertise, technology, and support that help Missouri businesses stay focused on building and growing.

Hire Smarter, Faster

Access recruitment support and a smoother onboarding experience.

Stay Compliant

Navigate Missouri and federal labor laws, regulations, and reporting requirements.

Retain Talent

Offer competitive benefits and perks that attract and retain top local talent.

Save Time

Reduce administrative burden and focus on growing your business.

Local HR Support for Missouri Businesses

G&A Partners has been supporting small and mid-sized businesses through changing workforce needs and requirements for more than three decades. Our local presence in Missouri gives us a firsthand understanding of the state’s unique employment environment and the practical HR challenges Missouri employers face every day.

What We Offer

As your business grows, your HR responsibilities grow right along with them — pulling valuable time and resources away from core business functions. With G&A Partners, you get Missouri HR outsourcing solutions backed by experienced professionals and unrivaled client service — helping you streamline HR processes, control costs, and mitigate risks.

Beyond managing risk, we help you attract and retain top talent by offering competitive employee benefit plans tailored for Missouri businesses. Explore our benefits and coverage plans.

Scalable HR Solutions

Expand your business with a flexible HR model that allows you to add services, support, and functionality as your workforce evolves.

Employee Benefits & Retirement

Offer competitive health insurance, retirement plans, and perks that help attract and retain top talent.

Payroll & Payroll Tax Management

Get accurate, on-time payroll administration and payroll tax reporting, remittance, and filings—all handled by G&A’s experts.

Risk Management & Safety

Reduce risk and support a safe workplace with expert guidance on OSHA regulations, workers’ compensation, and unemployment.

How We Deliver

Designed for businesses in Missouri, our HR outsourcing solutions include flexible options to fit your unique needs.

PEO Services

Full-service HR management, payroll, benefits administration, and workplace safety — along with expert guidance and integrated processes to keep up with compliance.

ASO Services

A la carte payroll, benefits administration, HR support, and compliance support.

HCM Services

Self-service payroll, time and attendance, benefits administration, HR management support, and more.

Our Step-by-Step Approach to HR Support in Missouri


G&A takes a simple approach to HR setup and ongoing support.

1

Assess Your HR Needs

Through a personalized consultation, we review your current HR processes, challenges, and goals and align our services with your needs.

2

Develop a Customized Solution

We create a tailored PEO solution designed to address your HR, payroll, benefits, and compliance priorities.

3

Begin Onboarding

Our experienced team works closely with you to gather data, integrate systems, set up payroll, and facilitate benefits enrollment for a seamless transition.

4

Dedicated HR Support

Our HR professionals provide ongoing payroll processing, benefits administration, and strategic HR support to help your business thrive.

Missouri Employment Compliance Made Simple

Missouri employment laws and regulations have unique requirements. We help you understand what matters for your business.

Missouri is not a right-to-work state, so union-security clauses that require employees to join a union or pay dues as a condition of employment are generally still permitted under applicable federal law.

Missouri follows at-will employment, meaning employers can generally terminate employees at any time and for almost any reason, provided the reason is not unlawful, such as discrimination or retaliation. Because Missouri courts recognize some exceptions, it’s essential to use clear policies, documentation, and consistent practices to reduce the risk of wrongful termination claims. G&A’s HR professionals help ensure your policies are fair and legally sound.

Missouri requires most employers to carry workers’ compensation insurance. G&A’s workers’ compensation program includes competitive rates, plan administration, claims management, and more.

Missouri’s minimum wage exceeds the federal rate and is subject to annual cost-of-living adjustments. To avoid costly penalties, it is critical to balance these state-specific rates with complex overtime and exemption rules. Employers must also pay earned wages to terminated Missouri employees on the date of separation. Our HR experts can help you review your pay structures and employee classifications to ensure compliance with state and federal laws.

Missouri operates under Federal OSHA jurisdiction for most private employers, though the Missouri Construction Safety Training Act mandates certification for all workers on public works projects. A Missouri PEO like G&A helps you navigate state-specific requirements and develop workplace safety initiatives that prioritize accident prevention.

Employers in Missouri must pay employees at specific times of the month. G&A’s payroll specialists can help ensure your payroll frequency complies with these state-specific requirements.

Most employers may be required to provide a written service letter to terminated employees upon request, stating the nature and character of the service, duration of employment, and true cause for termination. HR experts at a Missouri PEO like G&A can provide guidance to help ensure you meet this and other state requirements.

Stay compliant with confidence — partner with a Missouri PEO that knows state rules inside and out.

FAQs

G&A's Joplin location is full-service, with both a sales team and a service team based there. St. Louis has a sales team only, with ongoing account support handled by G&A's broader specialist network.

Missouri businesses can choose from three models: PEO, ASO, or HCM. PEO places your HR function under a co-employment arrangement, with G&A managing day-to-day tasks. ASO keeps HR with you, with G&A adding support for payroll and any other services you choose. HCM combines HR technology with a team that actually works with you.

G&A works with Missouri businesses across professional services, skilled trades, healthcare, technology, nonprofits, and manufacturing, among other industries. Reach out to find out if yours fits.

Not really. G&A supports small teams building out HR for the first time, midsize companies handling added complexity, and fast-growing businesses hiring faster than they can staff internally.

There's no fixed rate. Cost depends on your headcount, the services you choose, and whether PEO, ASO, or HCM fits best. A business advisor can give you pricing once they know your business.

About 6 to 7 weeks from signing to go-live for PEO and ASO, covering payroll setup, benefits enrollment, and compliance work like reviewing exempt and nonexempt classifications. HCM moves faster, usually around 30 days, since there's no co-employment transition to set up. An onboarding team runs that process, then your named Client Success Manager takes over.

Ready to simplify HR, payroll, and compliance?

Complete the form below, and one of our Missouri PEO experts will reach out.