How many back office services agencies are in California?

109 are listed on Agency List in California. 2 of them have been assessed on the Agency List Score as of September 2026.

Which back office services agency in California is ranked highest?

Kenz Innovation HCM, with an Agency List Score of 78.0, ranks #1 of 2 assessed agencies in Back Office Services in California.

Why are 107 back office services agencies listed here but not ranked?

107 of the 109 listed have not yet been assessed on the Agency List Score. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.

How is the ranking determined?

By Agency List Score, within the Back Office Services in California cohort of 2 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.

Top Back Office Services Agencies in California, United States

Ranked · 2 assessed

Ordered by Agency List Score

#1 of 2 assessed

Kenz Innovation HCM

Verified

Unified HCM platform for HR, payroll, and benefits management

Back Office ServicesCustomer Support BPOData Entry and Annotation

View profile

#2 of 2 assessed

eWorkplace Apps

Verified

ERP solutions for Acumatica, enhancing manufacturing and quality management

Back Office ServicesCustomer Support BPOData Entry and Annotation

View profile

Also in California · 107 not yet assessed

Listed agencies queued for assessment. Alphabetical.

31WestView profile →40HRSView profile →A LINE STUDIOView profile →ACTAXView profile →Ad ClubView profile →Adopt The Highway CompaniesView profile →AFCOM TECHNOLOGIESView profile →Alan J. BlairView profile →Alliance Resource ConsultingView profile →AlpineinvestorsView profile →Amara Grimes DesignView profile →Andiamo GroupView profile →Apex Ascent AdvisorsView profile →Apollo Business CentersView profile →ArgonautincView profile →Arin Fishkin DesignsView profile →BairesDevView profile →BloominariView profile →BoldiumView profile →Bolt StaffingView profile →BristolassocView profile →Bulldog DrummondView profile →Call Centers In IndiaView profile →Career Group SearchView profile →

About this ranking

What this page ranks

This page ranks the 2 back office services agencies in California that have been assessed on the Agency List Score, out of 109 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, Back Office Services in California. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 2, so no award can be issued here.

The 107 back office services agencies not yet assessed are listed on this page but not ranked.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many back office services agencies are in California?: 109 are listed on Agency List in California. 2 of them have been assessed on the Agency List Score as of September 2026.
Which back office services agency in California is ranked highest?: Kenz Innovation HCM, with an Agency List Score of 78.0, ranks #1 of 2 assessed agencies in Back Office Services in California.
Why are 107 back office services agencies listed here but not ranked?: 107 of the 109 listed have not yet been assessed on the Agency List Score. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?: By Agency List Score, within the Back Office Services in California cohort of 2 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.