9 of the top 401(k)s for small businesses in 2026

Offering a 401(k) plan has become one of the most important ways small businesses attract and retain employees. For many workers, retirement benefits are no longer just nice to have. They are a signal of stability, long-term commitment, and care for employee financial wellbeing.

At the same time, running a 401(k) plan can feel intimidating for small business owners and HR teams. Costs vary widely. Compliance rules can be complex. And providers range from modern, digital-first platforms to long-established financial institutions with very different approaches.

This guide compares 9 leading 401(k) providers for small businesses. It explains how each option works, what types of businesses they are best suited for, and where trade-offs may exist—so you can choose a 401(k) provider that fits your company’s size, budget, and administrative capacity. We'll dig into Betterment first and later provide you with a chart to help explore a variety of platforms.

The information in this article is based on publicly available information as of January 2026.

Quick take: Top 401(k) providers at a glance

• Betterment: All-in pricing, easy setup, built-in compliance support, modern employee experience.
  
  
• Principal: Broad investment options, flexible plan designs, established provider.
  
  
• Vestwell: Advisor-centric platform, supports PEPs and state-mandated programs
  
  
• John Hancock: Investment-focused plans, digital participant tools, strong brand recognition.
  
  
• Vanguard: Low-cost funds, broad investment access, more hands-on administration.
  
  
• Fidelity: Comprehensive retirement offerings, diversified investments, strong support resources.
  
  
• Human Interest: Startup-friendly plans, streamlined onboarding, automated payroll integrations.
  
  
• Voya: Flexible plan design, diverse investment menus, multiple fiduciary support options.
  
  
• Schwab: Customizable plans, broad investment access, more traditional setup with paperwork to mail in.

Methodology

To evaluate each provider fairly, we focused on criteria that matter most to small businesses and HR teams:

1. Fees and pricing transparency
   
   
2. Ease of setup and ongoing administration
   
   
3. Investment options and portfolio quality
   
   
4. Employee experience and digital tools
   
   
5. Compliance and fiduciary support
   
   
6. Payroll and HR system integrations
   
   

No provider is perfect for every business. The goal of this comparison is to highlight strengths and trade-offs so you can make a confident, informed decision.

Comparing 401(k) providers for small businesses

1. Betterment

Betterment offers an affordable and customizable retirement plan designed to scale with small to medium-sized businesses. Betterment offers clear, all-in pricing, streamlined administration, and professionally managed investment options.

Plans are designed to help reduce day-to-day administrative work for employers. Automated tools support key plan operations—such as contributions, portfolio rebalancing, and reporting—while built-in compliance support helps employers navigate required testing and filings. Employees benefit from a mobile-friendly experience and access to diversified, expert-built portfolios.

Strengths

• All-in pricing with no hidden fees.
  
  
• It takes less than ten minutes to set up a plan.
  
  
• Payroll integrations that can reduce manual work.
  
  
• Highly rated mobile app for improved employee experience.
  
  
• Professionally managed, diversified portfolios.
  
  
• Built-in compliance and fiduciary support.
  
  

Potential trade-offs
Some highly customized plan designs offered by legacy providers may not be available. Businesses seeking extremely bespoke configurations may need to confirm specific features.

Verdict
This could be a good fit for small and mid-sized businesses that want a modern, easy-to-run 401(k) with predictable costs and strong employee experience.

2. Principal

Principal is a long-established financial services company with extensive retirement plan experience. It offers a wide range of plan designs and investment options.

Strengths

• The company has an established track record.
  
  
• Broad investment lineup.
  
  
• Multiple plan design options, including those for startups, pooled employers, and flexible plans.
  
  

Potential trade-offs
Pricing can vary by provider and plan design, and often includes a combination of setup costs, ongoing recordkeeping fees, and participant-level fees. In practice, traditional providers may have higher ongoing fees than robo advisors.

Verdict
May be suited for businesses that value longevity and customization and have resources to manage plan complexity

3. Vestwell

Vestwell is a retirement platform that works primarily through advisors and intermediaries to support small business 401(k) plans, including PEPs and state-mandated retirement programs.

Strengths

• Powers both private 401(k) plans and state-mandated retirement programs.
  
  
• Experience supporting pooled employer plans (PEPs) and state-mandated retirement programs.
  
  
• Vestwell focuses on plan infrastructure and compliance for smaller plans.

Potential trade-offs

Because Vestwell typically operates through intermediaries, plan sponsors may have less direct engagement with the provider, and participants may experience fewer built-in digital tools or self-service features compared to more end-to-end platforms.

Verdict

Vestwell may be a good fit for employers who prefer an advisor-centric approach and value support for PEPs or state-mandated plans, particularly when direct provider engagement or participant experience is less of a priority.

4. John Hancock

John Hancock is known for its investment-focused retirement offerings backed by insurance expertise. They focus on small businesses, typically from startup to $5 million.

Strengths

• Robust investment options and advice.
  
  
• Digital experience for plan participants.
  
  
• Established brand recognition, with over 100 years of experience.

Potential trade-offs
John Hancock offers the depth and familiarity of a long-established retirement provider, but that approach can introduce added complexity in pricing and administration.

Verdict
John Hancock may appeal to businesses that emphasize investment choice and brand familiarity.

5. Vanguard

Vanguard is widely recognized for low-cost index investing and long-term goals.

Strengths

• Access to a broad range of investment options.
  
  
• Offers low-cost investment funds.
  
  
• Flexible recordkeeping options.
  
  
• Online learning center for plan sponsors and participants.

Potential trade-offs
Sponsors may need to coordinate plan setup and administration with third-party partners, which can require more hands-on involvement compared with fully managed turnkey providers. The digital experience tends to be standard web-based portals (participant and sponsor login) rather than the more automated, app-first experiences emphasized by some competitors.

Verdict
Vanguard may be a good option for employers who prioritize low-cost investment options and broad fund access, and who are comfortable managing plan administration through established recordkeepers.

6. Fidelity

Fidelity offers a comprehensive suite of financial products, including retirement plans, brokerage services, and research tools.

Strengths

• Broad retirement plan offerings and flexible solutions.
  
  
• Plan support and administration resources.
  
  
• Pre-selected diversified investment lineup.
  
  
• Mobile-friendly experience.

Potential trade-offs
The wide range of plan features and options may require more upfront decision-making for smaller teams. Plan costs and complexity can/may vary based on services and investment selections.

Verdict
Fidelity may work well for employers who want access to a broad suite of retirement plan offerings and resources through a well-established financial services provider, and who can invest time in selecting and configuring the plan that best fits their small business.

7. Human Interest

Human Interest can be a suitable option for small and startup businesses with automated onboarding and payroll connections.

Strengths

• Startup-friendly approach.
  
  
• Offers a wide range of payroll integrations.
  
  
• Simple plan launch and ongoing support.
  
  
• In-house recordkeeping and optional fiduciary services.

Potential trade-offs
Sponsors with very specific or complex plan design preferences may find more advanced customization requires additional support beyond what’s typically offered from a digital-first platform.

Verdict
Human Interest can be suited for early-stage businesses launching a first retirement plan.

8. Voya

Voya offers employer-sponsored 401(k) plans as part of its workplace retirement solutions, with diverse investment options and ongoing support.

Strengths

• Flexible plan design and tailored solutions
  
  
• Investment lineup includes target-date funds, diversified equity and fixed-income portfolios, and other mutual fund choices.
  
  
• Employers can access fiduciary solutions ranging from self-service tools to full investment management assistance.
  
  
• Various resources to help participants engage and plan for retirement.

Potential trade-offs
Plan features, investment menus, and pricing can vary based on plan design and selected services, which may require more upfront configuration.

Verdict
Voya may work well for organizations that value flexibility and guidance over a purely turnkey experience.

9. Schwab

Schwab provides 401(k) retirement plans as part of its small business retirement solutions, combining its brokerage heritage with customizable plan features and access to a broad investment universe.

Strengths

• Established financial brand services.
• Customizable 401(k) plan features.
• Wide range of investment access.
• Schwab offers a variety of small business retirement options

Potential trade-offs
Plan setup, administration, and pricing can vary based on selected services and third-party providers, which may require more involvement from plan sponsors.

Verdict
Schwab could be a good option for small businesses that prioritize broad investment access and are comfortable with a more traditional, customizable plan approach.

What should small businesses look for in a 401(k) provider?

Small businesses should prioritize providers that balance cost, simplicity, and employee experience. Transparent pricing helps avoid surprises. Easy administration reduces internal workload. Quality investment options support long-term employee outcomes. And strong compliance support helps businesses meet regulatory obligations with confidence.

How much does a small business 401(k) plan cost?

Costs typically include setup fees, ongoing administrative fees, per-employee charges, and investment-related expenses. Some providers bundle fees, while others separate them. Understanding the full cost structure upfront helps businesses budget accurately and compare providers fairly.

Why Betterment tends to rate well for small business 401(k) plans

Betterment tends to rate well for small business 401(k) plans due to its employee-focused platform that emphasizes straightforward onboarding, ongoing engagement, and accessible retirement planning tools. Employees can manage their accounts through a digital-first experience, including a mobile app and support channels, while employers benefit from structured education and engagement resources that encourage participation over time.

The platform also connects the 401(k) with other savings and investing tools in the same ecosystem, which can add convenience for employees without requiring additional benefit providers.

FAQs

What is the minimum number of employees needed to start a 401(k) plan?

Many providers allow businesses with just one or two employees to start a 401(k), including owner-only plans.

How long does it take to set up a 401(k) plan?

Setup can take anywhere from a few days to several weeks, depending on the provider and plan complexity.

Can small businesses offer matching contributions with limited budgets?

Yes. Many plans allow flexible or discretionary matching contributions that can adjust year to year.

What are the tax benefits of offering a 401(k) plan?

Businesses may be eligible for tax credits, deductions, and other incentives when offering retirement benefits.

Do small business 401(k) plans require annual compliance testing?

Most plans require annual testing, though some designs reduce or simplify these requirements.