Looking for HR outsourcing solutions in Seattle to optimize your human resources? DesignRush connects you with top agencies trusted by brands like Novartis and Wells Fargo. With over 1M monthly visitors and 100,000 client-agency matches monthly, our platform is a reliable resource for finding the best HR outsourcing services. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Best Seattle HR Service Providers

9 Companies - Rankings updated: June 30, 2026

We evaluate every agency on DesignRush according to expertise credentials and client satisfaction ratings. Some placements are sponsored.

United States × Washington × Seattle ×
  • Let us save you time & money.

    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.  [... see all Dimov Tax reviews ]

    Top Services:

    • HR Outsourcing
    • Accounting
    • Payroll
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Portfolios Count
    4 Projects Listed

    Dimov Tax Services

    • Business Consulting
    • Accounting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • High-Net-Worth Individuals
    • Startups
    • Technology Companies
    • International Taxpayers
    • Real Estate Investors
    • Professional Athletes & Entertainers
    • Healthcare Practices
    • Multi-State Businesses
    • Nonprofit Organization
    Data sourced from the agency's DesignRush profile

    Dimov Tax Reviews & Testimonials

    • Dmitrii Legetskii
      Dmitrii Legetskii Co-owner at VLA&DI Group
      5.0

      Accounting Review from Dmitrii Legetskii

      This company helped us set up our accounting system from beginning to end. I am a serial entrepreneur with experience working with many different accounting groups and this one has been the most responsive overall. They have helped us with registering the business, putting together payroll, and getting our quarterly tax returns filed. They have been also very helpful with giving personal tax advice. I would recommend them to any other friends and especially other business owners.

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    • Setty McIntosh
      Setty McIntosh Producer Creative Director at Media Production Company
      4.2

      Accounting Review from Setty McIntosh

      Services 2 years in a row. George Dimov is now my C.P.A. Excellent, organized, thorough and timely. We were impressed with their patience, courteousness, and efficiency.

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    • Undisclosed
      Undisclosed Executive at Tax Services Company
      5.0

      Accounting Review from Undisclosed

      They were easy to deal with. George Dimov, CPA successfully delivered the project as per the client's requirements. The service provider utilized Email and messaging apps for effective responsiveness and communication. They were also easy to work with. Ultimately, the client was satisfied with the partnership.

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    Reviews verified by DesignRush and sourced from the agency's profile
  • Unlock the Talent Vault with Scion Staffing

    Unlock the Talent Vault with Scion Staffing

    Scion Staffing, Inc. is a nationally recognized IT services staffing, creative staffing, and executive search firm with offices across the U.S. Recognized by Forbes and the Business Times, our team specializes in staffing for roles ranging from Executive to Operations. We're dedicated to connecting companies  [... view Scion Staffing profile ]

    Top Services:

    • HR Outsourcing
    • IT Staffing
    • PEO
    Location
    Seattle, Washington
    Number of Employees
    50 - 99
    Portfolios Count
    3 Projects Listed
  • 5x Best of Staffing Award-Winning Sales Recruiting Firm.

    5x Best of Staffing Award-Winning Sales Recruiting Firm.

    Our sales recruiting firm specializes in technology sales, software sales, industrial sales, and general B2B sales staffing (medical, pharmaceutical, and b2b insurance). We target recruit (headhunt) top sales performers with the exact backgrounds you are looking for.  [... view Sales Talent Inc profile ]

    Top Services:

    • HR Outsourcing
    • Staffing
    • Recruiting
    Location
    Seattle, Washington
    Number of Employees
    Under 49
  • Collaborating for Lasting Impact in Business Consulting

    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 ]

    Top Services:

    • HR Outsourcing
    • Accounting
    • Payroll
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up
    Portfolios Count
    6 Projects Listed
  • IT, Business, BPO, Audit, Tax and Advisory are just the beginning.

    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 ]

    Top Services:

    • HR Outsourcing
    • Accounting
    • Payroll
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Full Service Accounting & Business Consulting Firm

    Full Service Accounting & Business Consulting Firm

    BPM is a full-service accounting and consulting firm deeply experienced in assurance, tax and business advisory. With over 40 committed partners leading these groups, we deliver the resources, expertise and business insight that produce outstanding results for clients.  [... view BPM profile ]

    Top Services:

    • HR Outsourcing
    • Accounting
    • Payroll
    Location
    Seattle, Washington
    Number of Employees
    500 - 999
  • Matching Talent With Success

    Matching Talent With Success

    Artisan Talent is a premier creative staffing agency that has been redefining talent solutions since its inception. Committed to excellence, we offer a comprehensive suite of services tailored to the unique needs of the creative, digital, and marketing industries.  [... view Artisan Talent profile ]

    Top Services:

    • HR Outsourcing
    • Staffing
    • IT Staffing
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $1,000 - $10,000
  • Business & Technology Solutions

    Business & Technology Solutions

    Withum can be the new business advisor relationship you need to inspire innovation for your growth and success. Experience a fresh perspective on embracing what you’ve learned and refocusing your business strategy to thrive in an evolving, complex business environment. Whether you’re looking to strengthen  [... view Withum profile ]

    Top Services:

    • HR Outsourcing
    • Accounting
    • Payroll
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up
  • Building A Better Working World

    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 ]

    Top Services:

    • HR Outsourcing
    • Accounting
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up

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.