Browse our agency directory to find top HR outsourcing companies that blend strategic workforce management, compliance expertise, and scalable support solutions to streamline HR operations and support the growth of emerging businesses and industry giants alike. We also have a roster of US-based HR service providers that can ensure compliance with local regulations.
List of the Best Missouri HR Outsourcing Services
10 Companies - Rankings updated: March 31, 2026
We evaluate every agency on DesignRush according to expertise credentials and client satisfaction ratings. Some placements are sponsored.
Ride with the HR Experts.
With nearly 200 clients, we offer comprehensive HR services, infrastructure, and expertise. Our focus is to empower businesses of all sizes, allowing leaders to prioritize strategic growth. From payroll and benefits administration to employee relations and recruitment, we handle it all. Recognized for [... view Tandem HR profile ]- Location
- St. Louis, Missouri
- Number of Employees
- 100 - 249
- Minimal Budget
- Under $1,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTandem HR Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio
HR Outsourcing Project Get Fresh Produce 
Payroll Project American Massage Therapy Association
Reviews verified by DesignRush and sourced from the agency's profileTandem HR Reviews & Testimonials
Kellie Champagne's Review Sourced from Google
Our company left Tandem HR when they hiked the prices in 2024. Apparently, they do not send employers, copies of W2's for companies that have left service. I'm supposed to reach out to each employee to get a copy. Nice job, for doing the one job you had.
Show moreRyan Cobb's Review Sourced from Google
Tandem HR has done a great job maintaining the white-glove service we have come to expect over the years. The HR, Payroll, and Benefits experts that engage with our team feel like true partners rather than a third-party vendor.
Show moreHeather Worth's Review Sourced from Google
The quality support I receive from my contacts at Tandem HR is unbelievable. I don't even entertain outreach from other PEOs. Paola consistently goes above and beyond for Prevention First. She is always so pleasant, knowledgeable, responsive, and helpful! The rest of the team (Janet, Danielle, Jennifer, etc) is really great too!
Show more
Data sourced from the agency's DesignRush profileGet Fresh Produce American Massage Therapy Association Belgravia Group
A leading name in the field of recruitment and staffing
JBC Team is a distinguished provider of comprehensive HR and talent solutions, dedicated to redefining the landscape of human resources. Committed to excellence, we offer a wide spectrum of recruiting services tailored to diverse industries. [... view JBC profile ]- Location
- New York, Missouri
- Number of Employees
- 100 - 249
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsJBC Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio
Recruiting Project Administrative industry 
Recruiting Project Design industry 
Recruiting Project Data & Analytics
Reviews verified by DesignRush and sourced from the agency's profileJBC Reviews & Testimonials
Rochelle B's Review Sourced from Google
They did reach out and placed me the first time I needed a job. It was an overall positive experience. After my 2nd unemployment different people keep emailing, texting, and DMing me about the same company that I want nothing to do with. Recently I have updated my profile and applied to a few positions. The next day, I was contacted by a Talent Acquisition Executive who wanted to learn more about me and chat. I immediately gave him information to set up a time but, I’ve heard nothing back. I sent a follow up email as well and again nothing. I don’t know what’s going on lately with recruiters and talent managers.
Show moreR J's Review Sourced from Google
They did reach out and placed me the first time I needed a job. It was an overall positive experience. After my 2nd unemployment different people keep emailing, texting, and DMing me about the same company that I want nothing to do with. Recently I have updated my profile and applied to a few positions. The next day, I was contacted by a Talent Acquisition Executive who wanted to learn more about me and chat. I immediately gave him information to set up a time but, I’ve heard nothing back. I sent a follow up email as well and again nothing. I don’t know what’s going on lately with recruiters and talent managers.
Show moreRoberto Silva's Review Sourced from Google
There three times I worked for this people they had me doing the lowest of the lowest tasks for any project even tough I was "hired" by them cause of my high qualifications and extensive experience. I am visual merchandiser with over 20 years of experience working for major international brands and department stores. The good jobs were given to inexperienced Caucasian girls that did nothing but giggle and say "OH MY GOD" all day. To this day, they have the audacity to ask me for referrals for jobs that I am perfect for without the decency to answer email and a phone call. On the days of social media you can get a better gig on your own, this people are the ones that make this industry unbearable.
Show more
Data sourced from the agency's DesignRush profileRetail Industry Small Business Industry IT Industry
In sync with your needs.
A company called SynchronyHR provides outsourcing for human resources to business owners all throughout the nation. You can stop worrying about the boring jobs and concentrate on your growth and success by doing away with the headaches of human resources, compliance, workers' compensation, risk management [... view SynchronyHR profile ]- Location
- St. Louis, Missouri
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSynchronyHR Services
Reviews verified by DesignRush and sourced from the agency's profileSynchronyHR Reviews & Testimonials
Katie W's Review Sourced from Google
Had to use Synchrony as part of a company I worked for. Very difficult interface on top of requiring multi verification every time you wanted to log in and not providing a way for users to opt out. Would not set up a way for copies of checks to be emailed so I wouldn’t have to deal with multi verification anymore.
Show moreChris Wade's Review Sourced from Google
Do not have phone calls or video meetings with the employees of this company if you would like a task done.
Show more
Data sourced from the agency's DesignRush profileGraniterra and Prussiani NWO IT Services OYO Hotels, Inc.
Collaborating for Lasting Impact in Business Consulting
Join us at Deloitte, where we believe that our collective influence is the cornerstone of our value. With a rich legacy spanning over 175 years and a global network encompassing 150 countries, we empower remarkable achievements, solve complex problems, and drive meaningful progress for clients, professionals [... view Deloitte profile ]- Location
- St. Louis, Missouri
- Number of Employees
- 1000 & Up
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDeloitte Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio-thumb-webp.webp)
Business Consulting Project How Deloitte helped a large fast food company become a leader in sustainability. -thumb-webp.webp)
Business Operations Consulting Project Not zero Modelled Reimagined Simplified Net zero -thumb-webp.webp)
Strategy Consulting Project Lagging Shifted Coached Moved Leading -thumb-webp.webp)
Business Consulting Project From Monitor to Protect
Reviews verified by DesignRush and sourced from the agency's profileDeloitte Reviews & Testimonials
InlineAdam's Review Sourced from Google
So sphiscated accounting systems I must say. For what? Never saw an irs payable in any return they asked me to prepare although I’m no licensed accountant. No names no whistle just a honest google review. Makes me wonder what an accountant does, cooking books or AICPA reporting them. No mark up in my basis. The roc building is beyond comprehension though, they even do SNL up or down stairs never got to see a show so I don’t know
Show moreModernfoldStyles, Inc.'s Review Sourced from Google
We are proud to have been able to offer a beautiful Modernfold panel recovery job to give the walls a facelift to complete newly renovated meeting rooms at Deloitte in Rockefeller Plaza. Deloitte has always been such a great and dear client of ours! We look forward to continuing to work together in the future!
Show moreAlex Stackhouse's Review Sourced from Google
Deloitte completely failed implementation of Army IgnitEd, which led to thousands of service members paying out of pocket for education expenses. The circus that we watched unfold leaves me with zero confidence in the services that this firm provides.
Show more
Data sourced from the agency's DesignRush profileFinancial industry Government Sector IT industry Manufacturing industry Telecommunications industry
IT, Business, BPO, Audit, Tax and Advisory are just the beginning.
Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and [... view Grant Thornton profile ]- Location
- Kansas City, Missouri
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGrant Thornton Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio-thumb-webp.webp)
Financial Accounting Project Finance modernization for data-driven expansion -thumb-webp.webp)
Business Operations Consulting Project A new procurement paradigm at BDTX
Reviews verified by DesignRush and sourced from the agency's profileGrant Thornton Reviews & Testimonials
Theodore Mall's Review Sourced from Google
One of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenues in excess of $1.9 billion and operates more than 50 offices.
Show more
Data sourced from the agency's DesignRush profileFinancial industry Real estate industry Media and Entertainment industry
Let Us Handle the Back Office Burden
Quality Back Office (QBO) relieves business owners from the burdensome tasks of payroll, bill pay, invoicing, bookkeeping, accounting and more. With a dedicated team of real people and over 10 years of experience, we have successfully taken over 500+ back offices. Let us be your go-to back office provider [... view Quality Back Office profile ]- Location
- St. Louis, Missouri
- Number of Employees
- 100 - 249
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsQuality Back Office Services
Reviews verified by DesignRush and sourced from the agency's profileQuality Back Office Reviews & Testimonials
Graham Ebetsch's Review Sourced from Google
We found ourselves in the hands of QBO after our previous accountant merged her practice with theirs. We didn't feel great about the process in working with them for tax prep and pursued other help after one year. Our new accountant caught a major error within minutes of scanning through our QBO filings which cost us well over $2,000 at the time.We followed up with their team to understand how an error like that could have happened. I was assured by the president that he would personally investigate; I never heard back.
Show moreCharles Botchway's Review Sourced from Google
QBO has handled our accounting and tax work for 5+ years and done a great job. They are very responsive and attentive. If you need outsourced bookkeeping or accounting services, you'd be hard pressed to find a better option.
Show moreRandy Tylin's Review Sourced from Google
QBO has been doing my personal and now my Company's tax work. I was dissatisfied with my previous CPA- and the difference over the past 5 years has been night and day. Extremely knowledgeable and responsive. Additionally we have outsourced my Business' bookkeeping service to QBO and have referred them to other friends/businessowners.
Show more
Data sourced from the agency's DesignRush profileBlue Bird Day Neocol Point B Properties
Building A Better Working World
EY offers Accounting, Business Consulting, and IT Services with a mission to build a better working world. It provides insights and quality services that instill trust in global capital markets and economies. EY focuses on developing exceptional leaders who deliver on their commitments to all stakeholders [... view EY profile ]- Location
- St. Louis, Missouri
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEY Services
Data sourced from the agency's DesignRush profileQiagen Apple ASOS Microsoft Wawa
Empowering Your Accounting Decisions.
Crowe LLP is a global accounting firm offering audit, tax, advisory, and consulting services. With deep industry expertise, we empower businesses to make informed decisions for lasting value. Recognized as a top workplace, we leverage our partnership with Crowe Global to provide comprehensive solutions [... view Crowe profile ]- Location
- Clayton, Missouri
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCrowe Services
Reviews verified by DesignRush and sourced from the agency's profileCrowe Reviews & Testimonials
RA's Review Sourced from Google
As an accounting firm I would give them 1 star. I recently discovered a litany of deductions they failed to consider. You will be given an EA, which is just a glorified tax preparer. They will know nothing and be slow to reply. You might as well get your taxes done by H&R block or a proper independent CPA. If these folks do your taxes, get prepared for a larger tax bill. I strongly advise against it.
Show more
Data sourced from the agency's DesignRush profileBanking Industry Food Industry Fintech Industry
People-first solutions for smarter business outcomes.
Dynamic Consultants Group (DCG) is a technology consulting firm and Microsoft Partner specializing in helping organizations leverage data, business applications, and digital solutions to drive growth and efficiency. They deliver structured data migration, integration, implementation, and support services to [... view Dynamic Consultants Group profile ]- Location
- Kansas City, Missouri
- Number of Employees
- 100 - 249
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDynamic Consultants Group Services
Reviews verified by DesignRush and sourced from the agency's profileDynamic Consultants Group Reviews & Testimonials
Bruce Coffman's Review Sourced from Google
Some great people working at DCG. But there are many strong Microsoft partners out there - many with a close working relationship with Microsoft, many with extensive experience completing successful projects, many with a sizeable client base earned from doing good work, many with the financial strength to weather short-term negative impacts, and many with authentic and ethical leadership. Choose wisely.
Show more
Data sourced from the agency's DesignRush profileHealth Care Industry Manufacturing Industry Construction Industry
Together, we achieve more.
Offering project management, business, and IT services. At KPMG LLP, their purpose is to turn knowledge into value for the benefit of their clients, people, and the capital markets. [... view KPMG profile ]- Location
- Kansas City, Missouri
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKPMG Services
Reviews verified by DesignRush and sourced from the agency's profileKPMG Reviews & Testimonials
P. J.'s Review Sourced from Google
If you would like to see human beings organized as if they are an ant farm, this is the place.
Show moreKevin Meyer's Review Sourced from Google
Awesome old building on Park, also home to the NFL... Keep your eyes open in the lobby, and you'll undoubtedly run into a player.
Show more
Data sourced from the agency's DesignRush profileFinancial Industry IT Industry Real estate Industry
Why People Trust DesignRush
Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding HR outsourcing companies. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.
Learn more about DesignRush Agency Ranking Methodology.
Sources
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
- Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
- The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
HR Outsourcing Company FAQs
What is an HR outsourcing agency?
An HR outsourcing agency is a third-party company that handles some or all of a business’ human resources functions. These agencies manage everything from payroll and benefits to compliance and employee relations.
Businesses typically hire an HR outsourcing agency so they can focus on higher-value initiatives such as talent development and organizational culture, maximize efficiency, and reduce overall expenses associated with maintaining an in-house HR department.
How can an HR outsourcing agency streamline people operations?
An HR outsourcing agency streamlines people operations by centralizing routine, complex functions pertaining to compliance management, payroll, and policy administration, into standardized workflows. These adjustments are intended to reduce error-prone manual interventions and ensure consistency across processes.
Through such specialized expertise and automation, organizations gain operational efficiency and better risk management, which supports workforce planning.
What kinds of organizations benefit most from HR outsourcing?
HR outsourcing tends to deliver the greatest value in organizations where operational complexity or growth outpaces internal capacity. Companies with distributed teams or heavy regulatory requirements also benefit from the precision and standardization an external HR partner provides, while also reducing compliance risk and administrative challenges.
Which HR outsourcing firms are top-rated on DesignRush in 2025?
The top-rated HR outsourcing firms on DesignRush in 2025 are:
What core and specialized HR services do outsourcing agencies provide?
HR outsourcing providers provide the following core and specialized services:
- Payroll processing
- Benefits administration
- Compliance management
- HR analytics and reporting
- Employee onboarding and offboarding
- Recruitment and talent acquisition
- Workers' compensation and risk management
- Employer of Record (EOR) services
- Learning and development programs
- Employee relations and dispute resolution
How do I find the best HR outsourcing firm on DesignRush that fits my budget?
The cost of HR outsourcing services in 2025 is highly variable. While a general range of $45 to $1,500 per month is a common starting point for many businesses, this figure can vary depending on the scope of services provided, the company's size, the complexity of HR needs, and the level of expertise required.
To get a more accurate estimate, here is a price breakdown for various HR services:
- Recruitment: Up to $8,000 for 100 candidates
- Compliance management: $12,000 per year
- Payroll: Up to $250 per employee
- Compensation and benefits: Up to $165 per year
- HR management software: Between $70 and $100 per month
How quickly can companies expect HR efficiency gains?
The timeline for realizing HR efficiency gains can vary significantly depending on the specific functions being outsourced and the complexity of the organization. Immediate improvements are often seen in transactional areas like payroll processing and benefits administration, where a specialized provider can instantly introduce standardized, automated processes.
For other benefits pertaining to talent acquisition or employee engagement, the positive impacts may be more gradual, unfolding over several months to a year as new systems and strategies are fully integrated and adopted.
What should you look for when choosing an HR outsourcing provider?
Here are a few important factors to consider when choosing an HR outsourcing provider:
- High client retention rate, as this indicates strong satisfaction
- Dedicated account management rather than call center support
- Industry-specific experience in your sector
- Staff certifications from SHRM or HRCI
- Team members with ESAC accreditation or IRS Certified PEO status
- 24/7 availability for urgent inquiries
- Transparent pricing with no hidden fees
- Clear error resolution procedures and liability coverage
What red flags should deter you from partnering with an HR outsourcing agency?
When selecting an HR outsourcing partner, certain warning signs can indicate misalignment or risk. Watch out for:
- Opaque pricing, vague contracts, or missing insurance coverage
- Reluctance to share references or explain service models
- Pressure tactics, hidden subcontracting, or “too good to be true” offers
- No clear service-level agreements or dispute resolution terms
What questions should you ask before engaging an HR outsourcing firm?
Here are some questions you should ask before engaging the services of an HR outsourcing firm:
- What specific HR services do you provide, and can I select them individually?
- How do you handle compliance in our industry and locations?
- What happens if you make errors in payroll, benefits, or compliance?
- What is your client retention rate, and can you provide 3-5 similar business references?
- What insurance coverage do you carry to protect our business?
- What is your complete pricing structure, including all fees?
- What are your contract terms and cancellation policies?
- How do you handle billing disputes or service credits?
How does HR outsourcing differ from traditional in-house HR or HR software solutions?
HR outsourcing differs from traditional in-house HR or HR software solutions by delegating a company's HR functions to an external provider, which offers specialized expertise and takes on legal liabilities.
While in-house HR relies on a company's own employees to manage all HR tasks, offering a more hands-on and culturally integrated approach, it often comes with higher fixed costs. HR software, conversely, is merely a tool that automates processes for an internal HR team that lacks the strategic guidance and human expertise that a full outsourcing partnership provides.
What platforms, compliance tools, and HRIS systems do leading HR outsourcing agencies use today?
Leading HR outsourcing agencies leverage a range of sophisticated platforms and systems to provide comprehensive services. For core HR functions, they often use robust Human Resources Information Systems (HRIS) like ADP, Workday, and Oracle HCM Cloud, which integrate payroll, benefits, and employee data management.
For global compliance, particularly with a distributed workforce, they utilize specialized platforms such as Deel, Rippling, and Oyster HR, which are designed to handle complex international regulations and payroll. These agencies also employ compliance-specific tools like ComplianceHR and NAVEX to track and align with federal, state, and local labor laws.
How legitimate is the FAQs?
We prioritize providing accurate and valuable information to businesses and agencies. To do so, we collaborated with Paul Scott, chief website strategist at the award-winning company GoingClear. He shared insights on how to find a good outsourcing partner that can make you a thriving business in a congested industry.
With over 20 years of experience in marketing, branding, web technologies, and advertising, Paul Scott has helped many nascent and established businesses propel growth, earning the firm 40+ industry awards. Boasting certifications from Cornell, MIT, and Clark, along with a finance degree from Bentley University, he uses his strong business acumen to advance modern, digital-first brands.
About The Author and Expert Reviewer
Bojana Trajcheva is a seasoned content editor and innovation researcher with extensive experience in the tech and marketing industries. Formerly Editor-in-Chief at Studentsko Eho, she developed a strong foundation in content creation and editorial leadership. Bojana further honed her skills in senior innovation research roles and now brings this combined expertise to her work as an editor at DesignRush.
Sanja Srećković is an HR professional who utilizes her background in cultural anthropology to develop practical and successful HR methods for businesses. She served as a talent acquisition specialist at Petnica Science Center, then worked at SAT, an employment agency, where she successfully hired 100 people in just six months. She now employs her expertise in HR operations and management, talent assessment, and full-cycle IT recruitment to scale the teams and recognize top talent at DesignRush.
Latest Trends Related to HR Outsourcing
