Browse 20+ providers in this category.
Featured Providers
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Gusto
Third-Party Administrator
<p>Best known for tying payroll and benefits into one system, Gusto offers an integrated way for employers to run payroll, handle HR basics, and add w... -
KTRADE - Plymouth, IN
Third-Party Administrator
Retirement plan provider. -
Nationwide Mutual Insurance Company - Columbus, OH
Third-Party Administrator
<p>Retirement plan administration and recordkeeping are part of Nationwide Mutual Insurance Company’s employee benefits business, supporting employers... -
Lincoln Financial Group - Radnor, PA
Third-Party Administrator
<p>Retirement plan administration is a core part of Lincoln Financial Group’s business, with a focus on recordkeeping and compliance support for emplo... -
ForUsAll - San Carlos, CA
Third-Party Administrator
<p>Built for startups and small to mid-sized employers, ForUsAll runs 401(k) plans with a focus on plan design and recordkeeping. Founded in 2012, the... -
American Trust Retirement - Dubuque, IA
Third-Party Administrator
<p>Retirement plan administration and recordkeeping are the core of American Trust Retirement, a division of AmericanTCS. Founded in 1973, the firm wo... -
Ascensus, LLC - Dresher, PA
Third-Party Administrator
<p>Retirement plan administration and recordkeeping are core parts of what Ascensus, LLC does, with a mix of plan design and compliance support for em... -
Americas Best 401k - Scottsdale, AZ
Third-Party Administrator
<p>Built for small and mid-sized employers with roughly 5–500 employees, Americas Best 401k is a retirement plan administrator that focuses on lowerin... -
Ameritas Retirement Plans - Lincoln, NE
Third-Party Administrator
<p>Retirement plan administration and related financial services, with a focus on recordkeeping and compliance support. Ameritas Retirement Plans work... -
Aspire Financial Services - Tampa, FL
Third-Party Administrator
<p>Retirement plan recordkeeping is Aspire Financial Services’ main line of work, with a focus on K–12 retirement programs such as 403(b), 457, and IR... -
Basic Capital - New York, NY
Third-Party Administrator
<p>Runs bundled 401(k) administration with in-house recordkeeping and 3(16) services, built for employers that want a single provider for core plan op... -
BPAS - Utica, NY
Third-Party Administrator
<p>Retirement plan administration and recordkeeping are the core of BPAS’s work for employer-sponsored plans. The firm handles day-to-day plan operati... -
Betterment at Work - New York, NY
Third-Party Administrator
<p>Betterment at Work is a retirement plan administrator that runs workplace retirement programs with a tech-first recordkeeping platform. Founded in ... -
Canada Life - Toronto, ON
Third-Party Administrator
<p>Retirement plan administration and recordkeeping are a core part of Canada Life’s group business, with participant advice available alongside group... -
Capital Group - Los Angeles, CA
Third-Party Administrator
<p>Capital Group is a retirement plan administrator that handles plan design, compliance, and recordkeeping for workplace retirement plans. Founded in... -
Empower - Greenwood Village, CO
Third-Party Administrator
<p>Empower is a retirement plan administrator that provides recordkeeping for employer-sponsored retirement plans. It is the second-largest retirement... -
Desjardins Financial Security Life Assurance Company - Lévis, QC
Third-Party Administrator
<p>Desjardins Financial Security Life Assurance Company is an insurance and retirement savings administrator that runs recordkeeping and participant a... -
Epic Retirement Plan Services - Rochester, NY
Third-Party Administrator
<p>Retirement plan administration and recordkeeping are the core of Epic Retirement Plan Services (Epic RPS), a third-party administrator that also pe... -
Equitable - New York, NY
Third-Party Administrator
<p>Recordkeeping and retirement plan administration are the core of Equitable’s work for employer-sponsored plans. The firm handles day-to-day plan op... -
Fidelity Investments - Boston, MA
Third-Party Administrator
<p>Provides retirement plan administration and recordkeeping for employer-sponsored plans. Fidelity Investments is a multinational financial services ...
The Top 10 Largest 401(k) Recordkeepers Ranked by Assets
Selecting a recordkeeper is a pivotal decision for any plan sponsor. The market is dominated by a few massive players, yet the "best" provider depends entirely on your company's specific needs—whether that is payroll integration, advanced financial wellness technology, or white-glove service. While assets under management (AUM) indicate stability and scale, the number of plans serviced often highlights a provider's expertise with small-to-mid-sized businesses.
Below is a ranking of the top 10 largest 401(k) recordkeepers. This list highlights their scale and unique value propositions to help you identify the right administrator.
- Fidelity Investments Assets: $4.4 Trillion+ | Plans: 30,000+ Fidelity is the industry titan, managing more retirement assets than any other firm. They are best suited for organizations that prioritize a premium participant experience, offering a top-tier mobile app, extensive educational resources, and a vast array of investment options.
- Empower Assets: $1.8 Trillion+ | Plans: 80,000+ Empower has rapidly grown into the second-largest provider through strategic acquisitions, including Prudential and MassMutual's retirement businesses. They stand out for their focus on personalization and financial wellness, making them a strong choice for employers who want to actively improve their employees' financial health.
- The Vanguard Group Assets: $800 Billion+ | Plans: 14,000+ Synonymous with low-cost investing, Vanguard brings that same philosophy to plan administration. They are the ideal partner for sponsors focused on minimizing fee friction and fiduciary risk, typically offering streamlined, index-based investment lineups.
- Principal Financial Group Assets: $520 Billion+ | Plans: 45,000+ Principal is a powerhouse in the SMB market, offering sophisticated plan designs that many large providers overlook. They are particularly unique in their ability to service complex arrangements, such as combining a 401(k) with a Defined Benefit or ESOP plan.
- Alight Solutions Assets: $600 Billion+ | Plans: 1,500+ Alight caters almost exclusively to the mega-large market, serving some of the biggest corporations in the world. Their platform is built for complexity, excelling in total benefits outsourcing where health, wealth, and payroll are integrated into a single ecosystem.
- Voya Financial Assets: $585 Billion | Plans: 50,000+ Voya is a versatile provider with a strong presence in both the corporate and tax-exempt markets. They are well-regarded for their user-friendly digital tools and "orange money" financial wellness branding, which helps drive high participant engagement rates.
- TIAA Assets: $400 Billion+ (DC Assets) | Plans: 15,000+ TIAA is the dominant force in the non-profit, healthcare, and education sectors (403b), but they are also a major 401(k) player. Their unique value lies in their "pension-like" annuity options, offering participants a path to guaranteed lifetime income.
- Charles Schwab Assets: $300 Billion+ | Plans: 10,000+ Schwab appeals to a specific demographic of professional firms and savvy investors. Their inclusion of a Self-Directed Brokerage Account (SDBA) as a core feature makes them perfect for plans where participants want access to individual stocks and ETFs.
- Ascensus Assets: $250 Billion+ | Plans: 150,000+ Ascensus is the volume leader in the industry, servicing more individual plans than nearly anyone else. They are the engine behind many "white label" small business plans, offering a cost-effective and compliant solution for startups and small employers.
- ADP Retirement Services Assets: $150 Billion+ | Plans: 110,000+ ADP dominates the micro-to-small market by leveraging their payroll customer base. For businesses already using ADP for payroll, their 401(k) solution offers unmatched data integration, significantly reducing the administrative burden of contribution processing.
Find the Right Administrator for Your Business Size
While the "Big Three" offer incredible scale, they aren't always the best fit for every company. If you are a startup or a growing company, you may get better service and pricing from specialized small business 401(k) providers. Alternatively, if you are looking for an all-in-one solution that packages administration, investments, and fiduciary services together, consider exploring bundled 401(k) providers. For a broader look at all administrative options, visit our main guide on 401(k) recordkeepers.