ADP TotalSource vs Questco
How the two PEOs compare on pricing, minimum employees and fit.
| ADP TotalSource | Questco | |
|---|---|---|
| Company size | About 67,000 employees (ADP, 2025) | Being confirmed |
| Headquarters | Roseland, NJ | Houston area, TX |
| Founded | 1949 | Being confirmed |
| Pricing | No published PEO pricing. Quote required. | No published rates. Cost depends on company size and services chosen, plus a one-time onboarding fee equal to one month of administrative costs. |
| Pricing model | Quote only | Quote only |
| Best for | Established mid-market companies | Small and mid-sized businesses, including franchises, that want a Texas-based PEO |
| IRS certified (CPEO) | Yes, on the IRS list | Yes, on the IRS list |
| ESAC accreditation | Not confirmed | Not confirmed |
| Minimum employees | 5 employees | Not confirmed |
Carriers, 401(k) and workers' comp: side by side
| ADP TotalSource | Questco | |
|---|---|---|
| Health carriers | Multiple carrier choices; carriers not named ADP comparison page · Provider site | Pooled Questco master health plan, or benefits administration alongside your existing broker's plan; carriers not named Questco blog · Provider site |
| 401(k) provider | ADP TotalSource Retirement Savings Plan, a multiple employer 401(k) with 23 funds, 6,500+ adopting employers, 348,000 participants and $9B+ in assets (Sept 30, 2024); total cost 0.26% to 1.01%. Materials are branded Voya, which suggests Voya as recordkeeper (inferred, not stated) Voya/ADP cost brochure · Provider site · Sept 30, 2024 | Not publicly listed yet. We will get this for you: request a quote and we will include it. |
| Workers' comp | Workers' comp insurance with claims support, safety support and 24/7 nurse triage; carrier not named ADP comparison page · Provider site | Not publicly listed yet. We will get this for you: request a quote and we will include it. |
| Other named partners | Not publicly listed yet. We will get this for you: request a quote and we will include it. | Not publicly listed yet. We will get this for you: request a quote and we will include it. |
Due diligence checked November 4, 2026. We only list carriers and partners that a filing, the provider or a named review states. Many PEOs do not publish their carriers or recordkeepers, so "not publicly listed" means we could not find it, not that none exists. If something is missing, request a quote and we will get it from the PEO for you. Lineups vary by state and change at renewal. Source types: SEC filing (strongest), provider site, third-party review.
Questions to ask before you sign
- Which medical carriers and networks are available in my state and zip code?
- Are the health plans fully insured or partially self-funded, and who bears claims risk?
- Who is the 401(k) recordkeeper, and what are the total plan fees and match options?
- Who is the workers' comp carrier, how are rates set, and what happens to my experience rating if I leave?
- Is the entity that will employ my staff on the IRS CPEO list, and is it ESAC accredited?
- What renewal increase did your plans see in each of the last 3 years?
Choose ADP TotalSource if
Established mid-market companies.
- Large scale with more than half a million worksite employees reported
- Broad HR, payroll and benefits administration
Choose Questco if
Small and mid-sized businesses, including franchises, that want a Texas-based PEO.
- No strict minimum headcount stated
- Headquartered in the Houston, Texas area with service offices in Texas, Nebraska, Arizona and Colorado
- Offers its own health and welfare benefits plan
Ask ADP TotalSource about
- Pricing is not published
- Cost structure is reported as better suited to larger teams
Ask Questco about
- Pricing is not published
- Carriers pay commissions to Questco or its affiliated brokers on benefits, built into premiums
- Contract terms are not stated on its FAQ
Frequently asked questions
Is ADP TotalSource or Questco cheaper?
ADP TotalSource: No published PEO pricing. Quote required. Questco: No published rates. Cost depends on company size and services chosen, plus a one-time onboarding fee equal to one month of administrative costs. Published rates are not directly comparable to quote-only pricing, and health premiums are separate.
Which is better for a small company, ADP TotalSource or Questco?
ADP TotalSource is best for established mid-market companies. Questco is best for small and mid-sized businesses, including franchises, that want a texas-based peo.
Last verified November 4, 2026. Based on third-party reviews and vendor pricing pages. See each provider page for sources.