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](https://planprovider.pro/provider/ktrade) - Plymouth, IN Third-Party Administrator Retirement plan provider. - [Nationwide Mutual Insurance Company](https://planprovider.pro/provider/nationwide-mutual-insurance-company) - Columbus, OH Third-Party Administrator
Retirement plan administration and recordkeeping are part of Nationwide Mutual Insurance Company’s employee benefits business, supporting employers... - [Lincoln Financial Group](https://planprovider.pro/provider/lincoln-financial-group) - Radnor, PA Third-Party Administrator
Retirement plan administration is a core part of Lincoln Financial Group’s business, with a focus on recordkeeping and compliance support for emplo... - [ForUsAll](https://planprovider.pro/provider/forusall) - San Carlos, CA Third-Party Administrator
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](https://planprovider.pro/provider/american-trust-retirement) - Dubuque, IA Third-Party Administrator
Retirement plan administration and recordkeeping are the core of American Trust Retirement, a division of AmericanTCS. Founded in 1973, the firm wo... - [Ascensus, LLC](https://planprovider.pro/provider/ascensus-llc) - Dresher, PA Third-Party Administrator
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](https://planprovider.pro/provider/americas-best-401k) - Scottsdale, AZ Third-Party Administrator
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](https://planprovider.pro/provider/ameritas-retirement-plans) - Lincoln, NE Third-Party Administrator
Retirement plan administration and related financial services, with a focus on recordkeeping and compliance support. Ameritas Retirement Plans work... - [Aspire Financial Services](https://planprovider.pro/provider/aspire-financial-services) - Tampa, FL Third-Party Administrator
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](https://planprovider.pro/provider/basic-capital) - New York, NY Third-Party Administrator
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](https://planprovider.pro/provider/bpas) - Utica, NY Third-Party Administrator
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](https://planprovider.pro/provider/betterment-llc) - New York, NY Third-Party Administrator
Betterment at Work is a retirement plan administrator that runs workplace retirement programs with a tech-first recordkeeping platform. Founded in ... - [Canada Life](https://planprovider.pro/provider/canada-life) - Toronto, ON Third-Party Administrator
Retirement plan administration and recordkeeping are a core part of Canada Life’s group business, with participant advice available alongside group... - [Capital Group](https://planprovider.pro/provider/capital-group) - Los Angeles, CA Third-Party Administrator
Capital Group is a retirement plan administrator that handles plan design, compliance, and recordkeeping for workplace retirement plans. Founded in... - [Empower](https://planprovider.pro/provider/empower) - Greenwood Village, CO Third-Party Administrator
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](https://planprovider.pro/provider/desjardins-financial-security-life-assurance-company) - Lévis, QC Third-Party Administrator
Desjardins Financial Security Life Assurance Company is an insurance and retirement savings administrator that runs recordkeeping and participant a... - [Epic Retirement Plan Services](https://planprovider.pro/provider/epic-retirement-plan-services) - Rochester, NY Third-Party Administrator
Retirement plan administration and recordkeeping are the core of Epic Retirement Plan Services (Epic RPS), a third-party administrator that also pe... - [Equitable](https://planprovider.pro/provider/equitable) - New York, NY Third-Party Administrator
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](https://planprovider.pro/provider/fidelity-investments) - Boston, MA Third-Party Administrator
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](/provider/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](/provider/empower-retirement)** **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](/provider/vanguard)** **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](/provider/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](/provider/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](/provider/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](/provider/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](/provider/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](/provider/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](/provider/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](https://planprovider.pro/small-business-401k). 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](https://planprovider.pro/bundled-401k-providers). For a broader look at all administrative options, visit our main guide on [401(k) recordkeepers](https://planprovider.pro/401k-recordkeepers). 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