Connor & Gallagher OneSource ASO Review
by Connor & Gallagher OneSource
Connor & Gallagher OneSource's ASO bundles UKG Ready payroll and HRIS, HR management outsourcing, employee benefits, retirement plan services and workers' compensation. The client remains the employer, and pricing is quoted.
Best for
- Small and mid-size businesses juggling separate payroll, HR, benefits, retirement and insurance vendors
- Employers without a full internal HR department
- Companies willing to run payroll and HR on UKG Ready
Not ideal for
- Employers that want to keep a payroll or HRIS platform other than UKG Ready
- Buyers who want to pick only one or two ASO components (CGO sells those as individual services)
- Buyers who need published prices
How we evaluated Connor & Gallagher OneSource ASO
This review rests on the 11 facts this page shows, each checked against the source listed under “Sources”, most recently on . We did not test the product hands-on: the score uses only those verified facts, as our methodology explains; third-party ratings, where we quote them, never count in the score.
Our verdict
Connor & Gallagher OneSource (CGO), an insurance agency founded in 1997, 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.
Strengths
One partner for five functions
Payroll and HRIS, HR outsourcing, benefits, retirement and workers' compensation in one ASO.
Evidence
Modules: UKG Ready payroll and HRIS, HR management outsourcing, Employee benefits, Retirement plan services, Workers' compensation1
No co-employment
CGO states the client remains the employer and the ASO does not require co-employment.
Evidence: No co-employment: Yes1
Employee-facing HR help
Employees can contact CGO directly with HR, benefits and onboarding questions.
Evidence
Support channels: HR professionals (employees can contact CGO directly), Benefits professionals, Retirement professionals1
Price at a glance
Quick answers
- How much does the CGO ASO cost?
- Connor & Gallagher OneSource publishes no ASO prices; it quotes the components you choose, all run on UKG Ready, which the ASO requires.Based on Price transparency: Quote only1
- Is CGO ASO a PEO?
- No. CGO says clients remain the employer and its ASO does not require the co-employment relationship of a PEO.Based on No co-employment: Yes1
- Does CGO ASO include workers' compensation?
- Yes. CGO lists workers' compensation as a component of its ASO model.Based on Workers' comp included: Yes1
Coverage of core ASO services capabilities
Each core capability we evaluate in ASO Services, checked against Connor & Gallagher OneSource ASO’s own documentation. “Not verified yet” means we have not confirmed it either way, not that it is missing.
7 verified of 8 core capabilities
Specifications
Connor & Gallagher OneSource ASO integrations
Named by the vendor
- UKG Ready
Connor & Gallagher OneSource ASO integration coverage
The 4 apps that ASO services products document most often, and whether Connor & Gallagher OneSource ASO documents each.
0 of the 4 most-connected apps documented by Connor & Gallagher OneSource ASO; median of the 8 products compared: 1
- QuickBooks · documented by 5 of 8
- BambooHR · documented by 2 of 8
- Sage Intacct · documented by 2 of 8
- Xero · documented by 2 of 8
Integrations each vendor documents (native, marketplace, Zapier, API or named by the vendor), 8 live ASO services products. Not documented does not mean not possible.
Connor & Gallagher OneSource ASO alternatives
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About Connor & Gallagher OneSource
Official profiles
Connor & Gallagher OneSource ASO: frequently asked questions
What is Connor & Gallagher OneSource ASO used for?
Connor & Gallagher OneSource ASO is an ASO services product built for small businesses and mid-market companies. Its modules include UKG Ready payroll and HRIS, HR management outsourcing, Employee benefits, Retirement plan services, and Workers' compensation.
Is Connor & Gallagher OneSource ASO legit?
Connor & Gallagher OneSource ASO is sold by Connor & Gallagher OneSource, which was founded in 1997 and is headquartered in Lisle, Illinois, US.
What are the best alternatives to Connor & Gallagher OneSource ASO?
In our ASO services ranking, the highest-scored products other than Connor & Gallagher OneSource ASO are Paychex Flex, TriNet, and Easeworks ASO. Compared side by side, by reason to switch: Connor & Gallagher OneSource ASO alternatives.
What are the pros and cons of Connor & Gallagher OneSource ASO?
Strengths documented on the vendor’s own pages: one partner for five functions, no co-employment, and Employee-facing HR help. It is less suited to employers that want to keep a payroll or HRIS platform other than UKG Ready and buyers who want to pick only one or two ASO components (CGO sells those as individual services).
How this page was made
What it is built from
11 verified facts, each checked against the vendor's own pages or another primary source, most recently on Oct 24, 2026.
Method
Scored and compared with the LeadChange methodology, version 1.5. Read the methodology
Independent review
Not reviewed yet by our independent reviewer. How we review
Hands-on testing
We have not tested Connor & Gallagher OneSource ASO hands-on: this page uses public information only.
Who made it
The LeadChange Research Team, following a written research process. No named expert has reviewed this page. About us
Independence and errors
Who pays us never changes a score or a rank. If something here is wrong, tell us and we correct it publicly. Request a correction
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Connor & Gallagher OneSource ASO
Sources
The 2 pages this page's facts come from. The date beside each is our last check of the facts taken from it (the oldest, when they differ). The numbers beside the figures above link here.
Quotes from the sources
- Connor & Gallagher OneSource gocgo.com/aso-provider“ASO can be a strong fit for growing small and mid-sized businesses that have reached the point where managing HR, payroll, benefits, and other employer responsibilities internally has become difficult or inefficient.” “CGO can review your current structure and help determine whether an integrated ASO model makes sense for your organization.”
- Connor & Gallagher OneSource gocgo.com/about-us“Connor & Gallagher was founded by Tom Connor and Dan Gallagher in August of 1997.” “Suite 400 Lisle, IL 60532”
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