ASO Services
Best ASO Services for Mid-Sized Companies
Mid-sized companies with an HR manager use an ASO to take payroll, benefits administration and compliance work off the team while keeping control of benefit plans, carriers and HR decisions. The choice turns on how modular the services are and how well the platform handles several states.
- products that fit
- 5
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ASO services for mid-sized companies
None of these products has enough verified facts for a LeadChange Score yet, so none is ranked: they are listed by the share of their facts we have verified. Prices are list prices as published by each vendor.
Filter by verified facts
ADP Comprehensive Services
ADP Comprehensive Services is ADP's modular HR outsourcing service for employers with 25 or more employees: designated HR, payroll, benefits and talent specialists on the ADP Workforce Now suite, while the business stays the sole employer of record.
- Pricing model
- Quote only
Not scored yetC2 Essentials ASO
C2 Essentials, based in Ashburn, Virginia, sells a PEO and an ASO aimed at government contractors.
- Pricing model
- Quote only
Not scored yetConnor & Gallagher OneSource ASO
Connor & Gallagher OneSource (CGO), founded in 1997 as an insurance agency, sells an ASO that bundles UKG Ready payroll and HRIS with HR management outsourcing, employee benefits, retirement plan services and workers' compensation, while the client remains the employer. UKG Ready is required and pricing is quoted.
- Pricing model
- Quote only
Not scored yetEaseworks ASO
Easeworks is a California HR outsourcing firm, operating since 2000, whose ASO keeps the client as sole employer while Easeworks runs payroll and tax support, HR administration, compliance workflows and reporting with a named HR partner.
- Pricing model
- Quote only
Not scored yet
AsureWorks
AsureWorks is Asure Software's managed payroll and HR administration service: Asure specialists run payroll, tax filing and reporting, records and onboarding on AsureCentral while the client remains employer of record with no co-employment. It does not bundle benefits, and pricing is quoted.
- Pricing model
- Quote only
Not scored yet
LeadChange Score: editorial assessment based on public information.
What matters for mid-sized companies
Modular services
Look for a provider that lets you outsource payroll, benefits or HR administration separately and add services as the team changes.
Benefits administration for your plans
Check carrier connections, ACA filing and COBRA administration for the plans you sponsor, since an ASO does not offer its own group plans.
Multi-state payroll and compliance
Ask which states the provider files in and how it tracks state and local law changes for your locations.
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- Applicant Tracking SystemsApplicant tracking systems for mid-sized companies
- Background Check ServicesBackground check services for mid-sized companies
- Benefits AdministrationBenefits administration for mid-sized companies
- Call Center Workforce ManagementCall center workforce management for mid-sized companies
- Candidate Sourcing ToolsCandidate sourcing tools for mid-sized companies
- Certified PayrollCertified payroll for mid-sized companies
- COBRA AdministrationCOBRA administration for mid-sized companies
- Compensation ManagementCompensation management for mid-sized companies
Find your fit
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More on ASO services
- All ASO services, ranked
The full ranking, top picks and how to choose.
- ASO Services comparison table
Every product side by side: score, price and verified features.
- ASO Services pricing guide
Published list prices, cost by headcount and fees to ask about.
- ASO services for small business
The ranking reweighted for small business.
- ASO services for construction
The ranking reweighted for construction.
- ASO services for government
The ranking reweighted for government.
- ASO services for healthcare
The ranking reweighted for healthcare.
How we research
This ranking of ASO services for mid-sized companies reweights the LeadChange Score: capability coverage 25%, pricing transparency & value 30%, integrations & API 10%, security & compliance 10%, fit & support 15%, and data confidence 10%. Only products with a verified fact showing they serve this segment are listed.
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