Our directory features the top HR outsourcing companies in the USA. Our directory, backed by five ranking criteria, 12 expert reviewers, and 140+ verified client reviews, to help you confidently identify the best HR outsourcing services for your needs.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Dimov Tax offers expert domestic and international tax and financial services, including individual and business tax preparation, cryptocurrency and stock taxation, IRS/state notice resolution, forensic accounting, M&A consulting, property management accounting, CPA letters, and tailored strategies...
Top Services:
Tax Preparation Review from Parhum Moshki
Dimov Tax was exceptionally helpful and fair-priced when assisting my family with complex tax questions that involved cross-border considerations. They made sure all of our filings strictly adhered to IRS regulations while maintaining the highest standard of quality. It gave us complete peace of mind knowing everything was handled professionally and completely by the book!
Tax Preparation Review from Gerald Triplett
Working with the team at Dimov Tax has been a fantastic experience. I have relied on them for my filings over the last four tax years, and I always feel confident knowing they genuinely look out for my best interests. They are dedicated, reliable, and consistently advocate for their clients!
Tax Preparation Review from Рубен Газарян
This is easily the finest tax firm I have ever worked with. As a long-term client who grew up outside the United States, I find the American tax system incredibly complex and confusing. However, Kirill Solntsev and George Dimov made my highly complicated 2025 tax return feel completely manageable. Kirill’s exceptional professional support, patience, and meticulous attention to detail were incredible throughout the entire process. They offer top-tier individual tax planning and filing services at a great price point. I wish them continued success and look forward to remaining a loyal client for many years to come!
The Talent Boom is a Global Creative and Digital Headhunting firm located in three different continents. We work with the worlds leading brands, advertising agencies, fortune 500's and scaling start ups to help them find top talent when they hire...
Top Services:
Chanelle Labuschagne's Review Sourced from Google
Erica demonstrated excellent communication throughout the application process, consistently keeping me informed at every stage. She provided clear, step-by-step guidance, ensuring I always knew where we were in the process.
Okuhle Mrulekana's Review Sourced from Google
Erica Abrahams is truly an asset to the organization. She’s very professional and supportive, interacting with her felt so warm.
Owl_ethu The_Aesthete's Review Sourced from Google
Working with Erica Abrahams was an absolute pleasure!From start to finish, she was incredibly supportive and made it clear that she was rooting for me every step of the way. Her positive energy and encouragement turned what could have been a stressful process into such a smooth and uplifting experience. I truly felt like she was invested in my success. I highly recommend working with Erica—she’s a rare gem!
To choose the right outsourcing company for your business, consider these steps:
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Start with your current employee headcount and projected growth over the next 12-24 months.
Document all locations where you have employees, because each state or country adds compliance complexity that affects pricing.
Gather your existing payroll structure, including pay frequencies, overtime policies, and any special compensation arrangements like commissions or bonuses.
List your current benefits offerings and note whether you want the provider to source new plans or administer existing ones.
Compile your compliance requirements. Are you subject to industry-specific regulations? Do you have government contracts requiring certain HR practices? Have you faced any compliance issues or audits recently? Understanding your risk profile helps providers recommend appropriate service levels.
Finally, establish your budget expectations and decision timeline. Providers appreciate knowing whether you're exploring options or ready to move quickly.
According to a 2025 Paychex study, 64% of companies spend 570 hours annually on HR administration, so quantify your own time investment to understand your potential ROI from outsourcing.
While both HR outsourcing and building an in-house team bring their own advantages, the decision will depend on your specific business needs.
According to Deloitte's Global Outsourcing Survey, these are the top reasons why businesses are outsourcing functions, including HR:
In other words, HR outsourcing makes more sense when:
Outsourcing HR doesn't mean eliminating internal people management, but it means redirecting your focus from administration to strategy.
Your leadership team remains responsible for organizational culture, performance expectations, hiring decisions, and employee development priorities.
The HR outsourcing provider handles execution, compliance, and day-to-day administration.
Expect regular check-ins with your provider. Most start with weekly or biweekly touchpoints during the first few months, transitioning to monthly reviews once processes stabilize.
You'll approve payroll runs, review compliance reports, and make final decisions on employee relations matters.
The provider brings expertise and recommendations; you make the calls, ensuring that everything aligns with your company's values and goals.
To measure if the HR outsourcing company is delivering value to your business, start by defining your expectations and service level agreement (SLAs).
This includes your measurable business objectives, performance metrics, and current benchmarks.
Here are some of the most common HR outsourcing benchmarks to consider:
Small companies with 25 employees and a monthly HRO cost of $120-$200 can expect an average return on investment (ROI) of 150%.
Mid-sized businesses with around 100 employees and a monthly HRO of $430-$500, on the other hand, can experience an ROI of 175%.
For large enterprises with over 500 employees and an HRO of $2,000-$3,000 per month, the average ROI is 191%.
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
Every agency is independently vetted before it can be listed or ranked
Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
They typically provide a comprehensive menu of services covering the full employee lifecycle.
According to industry research, these are the most frequently outsourced HR services:
Beyond these core offerings, these companies also cover performance management, time and attendance tracking, and compliance management.
HR outsourcing costs start at $50-$200 per employee per month and can go beyond $1,500 per employee per month. The final rate will depend on the type of HR sourcing service, engagement model, company size and structure, industry, and compliance requirements.
Here’s a pricing breakdown per service type:
While both HR outsourcing companies and PEOs (professional employer organizations) help organizations hire and manage their employees, they have different functions.
Mainly, an HRO serves as an external vendor, while a PEO operates through a co-employment model. Below are more details:
| HR Outsourcing | PEO | |
| Function | Third-party vendor | Co-employer |
| Legal Liability | Client | Shares responsibility with the client |
| Services | Provides the service as needed | Controls the entire HR operations |
| Payroll, taxes, and filings | Provider handles the service, but the client remains the employer | Provider is the co-employer and administers the entire process |
| Benefits |
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Ask these questions before hiring an HR outsourcing company:
Industry research found that 57% of companies outsource at least one HR service, proving that all types of businesses can benefit these from these types of services.
However, here are the sectors that have the highest share of HRO contracts:
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