Browse 45 providers in this category.
Provider ranking
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401GO
Plan Administrator • Pro Score 4.3
Sandy, UT
Stats: 5,055 clients • $12.0B under management • 54K participants
Pricing: $25 base fee • $2/employee
Company: Est. 2017 • 105 employees
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Human Interest
Plan Administrator • Pro Score 4.3 • Verified
San Francisco, CA
Credentials: RIA - Registered Investment Advisor
Stats: 40,000 clients • $8.1B under management • 793K participants
Pricing: $120 base fee • $5/employee
Company: Est. 2015 • 771 employees
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Guideline, Inc.
Plan Administrator • Pro Score 4.2
Burlingame, CA
Stats: 60,000 clients • $15.0B under management • 500K participants
Pricing: $39 base fee • $4/employee
Company: Est. 2015 • 350 employees
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Ubiquity Retirement + Savings
Plan Administrator • Pro Score 4.0
San Francisco, CA
Stats: 16,000 clients • $300M under management • 100K participants
Pricing: $177 base fee • $6/employee
Company: Est. 2000 • 90 employees
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Vestwell
Plan Administrator • Pro Score 4.0
New York City, NY
Stats: 12,086 clients • $34.9B under management • 180K participants
Pricing: $39 base fee • $8/employee
Company: Est. 2016 • 350 employees
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Americas Best 401k
Plan Administrator • Pro Score 3.1
Scottsdale, AZ
Credentials: RIA - Registered Investment Advisor
Stats: 2,000 clients • $1M under management • 40.0M participants
Pricing: $133 base fee • $5/employee
Company: Est. 2012 • 49 employees
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Sharebuilder 401k
Plan Administrator • Pro Score 3.1
Seattle, WA
Stats: 6,500 clients • $2.0B under management • 150K participants
Company: Est. 2005 • 51 employees
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Betterment at Work
Plan Administrator • Pro Score 3.0
New York, NY
Stats: 2,000 clients • $30M under management
Pricing: $100 base fee • $5/employee
Company: Est. 2009 • 466 employees
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Slavic401k
Plan Administrator • Pro Score 2.8
Boca Raton, FL
Stats: 12,000 clients • $10M under management • 250K participants
Company: Est. 1986 • 270 employees
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Principal Financial Group, Inc.
Plan Administrator • Pro Score 2.5
Des Moines, IA
Stats: 11,086 clients • $540.4B under management • 12.1M participants
Company: Est. 1879 • 20,000 employees
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Transamerica
Plan Administrator • Pro Score 2.5
Cedar Rapids, IA
Stats: $416.0B under management
Company: Est. 1946
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Alight Solutions
Plan Administrator • Pro Score 2.4
Chicago, IL
Stats: 2,000 clients • $600.0B under management • 117.0M participants
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Fidelity Investments
Plan Administrator • Pro Score 2.4
Boston, MA
Stats: 37,255 clients • $4.4T under management • 44.2M participants
Pricing: $100 base fee • $8.33/employee
Company: Est. 1949 • 50,000 employees
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Nationwide Mutual Insurance Company
Plan Administrator • Pro Score 2.4
Columbus, OH
Stats: 15,241 clients • $235.8B under management • 2.1M participants
Company: Est. 1926 • 24,000 employees
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Charles Schwab & Co., Inc.
Plan Administrator • Pro Score 2.1
Westlake, TX
Stats: 1,179 clients • $341.7B under management • 1.6M participants
Company: Est. 1971 • 4,200 employees
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ADP Retirement Services
Plan Administrator • Pro Score 2.0
Roseland, NJ
Credentials: Other
Stats: 135,642 clients • $158.8B under management • 3.9M participants
Pricing: $325 base fee • $5/employee
Company: Est. 1949
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John Hancock
Plan Administrator • Pro Score 1.9
Boston, MA
Stats: 54,358 clients • $253.0B under management • 200K participants
Company: Est. 1863 • 4,000 employees
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TIAA
Plan Administrator • Pro Score 1.9
New York, NY
Stats: $600.0B under management
Company: Est. 1918
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Paychex
Plan Administrator • Pro Score 1.8
Rochester, NY
Stats: 124,000 clients • $55.7B under management • 1.6M participants
Company: Est. 1971 • 15,000 employees
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The Vanguard Group, Inc.
Plan Administrator • Pro Score 1.8
Malvern, PA
Stats: 1,400 clients • $523.0B under management
Company: Est. 1975 • 20,000 employees
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Ascensus, LLC
Plan Administrator • Pro Score 1.7
Dresher, PA
Credentials: Other
Stats: 147,067 clients • $315.0B under management • 3.8M participants
Company: Est. 1980 • 5,600 employees
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Corebridge Financial
Plan Administrator • Pro Score 1.7
Houston, TX
Stats: 89,609 clients • $127.7B under management • 5.0M participants
Company: 2,000 employees
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Voya Financial
Plan Administrator • Pro Score 1.5
New York City, NY
Stats: 65,135 clients • $729.0B under management • 5 participants
Company: 9,000 employees
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Empower
Plan Administrator • Pro Score 1.3
Greenwood Village, CO
Stats: 80,895 clients • $1.8T under management • 16.7M participants
Company: Est. 2014 • 6,000 employees
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American Trust Retirement
Plan Administrator
Dubuque, IA
Stats: 5,903 clients • $18.1B under management • 233K participants
Company: Est. 1973 • 202 employees
Choosing the Best 401(k) Providers for Your Business
Finding the right retirement plan partner is a critical decision for any organization. The best 401(k) providers offer a combination of low administrative fees, diverse investment selections, and user-friendly technology. Whether you are a startup looking for your first plan or an established corporation seeking to optimize your current offering, selecting a provider that balances fiduciary support with employee engagement is paramount.
Top-Rated 401(k) Administrators in 2026
Our evaluation focuses on the industry leaders known for reliability and innovation. These providers excel in automating complex tasks like 401(k) testing and government filings, allowing you to focus on your core business operations.
- Fidelity Investments: Renowned for its massive investment menu and high-touch participant support.
- Vanguard: The gold standard for low-cost index funds and transparent fee structures.
- ADP & Paychex: Ideal for businesses seeking seamless 360-degree integration between payroll and retirement benefits.
- Human Interest: A leading digital-first provider focused on making 401(k) plans affordable and automated for small to mid-sized businesses.
- Charles Schwab: Offers robust managed account services and personalized investment advice for participants.
Key Features to Evaluate
When comparing 401(k) companies, consider the following essential criteria to ensure your plan remains competitive and compliant:
| Feature | Why It Matters |
|---|---|
| Payroll Integration | Reduces manual data entry and minimizes administrative errors. |
| Fiduciary Services | 3(21) or 3(38) services help mitigate legal liability for plan sponsors. |
| Participant Tools | Mobile apps and educational resources drive higher participation rates. |
Beyond standard 401(k) plans, many providers also offer specialized options such as Solo 401(k) plans for the self-employed or 403(b) plans for non-profits. Secure your company's financial future by partnering with a top-tier provider today.
Ready to compare specific options? Visit our retirement planning blog for deep dives into fee benchmarks and the latest SECURE 2.0 Act compliance updates.