# Who does Automatic Data Processing, Inc. pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/automatic-data-processing · Facet: suppliers · Updated: 2026-09-11T14:40:54.814785+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Automatic Data Processing, Inc.'s confirmed suppliers/cost counterparties include Chubb Limited, Amazon. Per the valuechain.wiki graph: 2 cost edges, backed by 3 dated sources, 1 of them primary filings (as of 2026-09-11).

### WorkForce Software (high)
- metric: Amount $1.2B · October 2024 acquisition · Purchase price for WorkForce Software
- note: ADP acquired WorkForce Software to strengthen workforce-management capabilities for large enterprises. The SEC filing provides the purchase price, and Nucleus Research analyzes the product and market implications.
- [confirms] SEC EDGAR (EN, filing, published 2026-08-05) https://www.sec.gov/Archives/edgar/data/8670/000000867026000030/adp-20260630.htm: "acquired WorkForce Software; purchase price $1,170.8 million"
- [confirms] Nucleus Research (EN, research, published 2025-01-16) https://nucleusresearch.com/research/single/adp-announces-its-acquisition-of-workforce-software/: "ADP's acquisition of WFM provider WorkForce Software will enable it to build on its substantial WFM client base."

### 처브 (high)  → /chubb-limited.md
- metric: Amount $278M · FY2026 policy year · Premium for the Chubb reinsurance arrangement
- note: ADP Indemnity pays Chubb for reinsurance covering workers' compensation deductible losses for PEO worksite employees. The filing directly reports the policy-year premium.
- [confirms] SEC EDGAR (EN, filing, published 2026-08-05) https://www.sec.gov/Archives/edgar/data/8670/000000867026000030/adp-20260630.htm: "paid a premium of $278.0 million to enter into a reinsurance arrangement with Chubb Limited"

### 아마존 (mid)  → /amazon.md
- note: AWS is ADP's strategic cloud provider. ADP has migrated payroll and HCM applications to AWS and uses AWS services, but the contract value is not disclosed.
- [confirms] Amazon (EN, news, published 2026-09-08) https://press.aboutamazon.com/aws/2026/9/adp-partners-with-aws-to-accelerate-ai-powered-innovation-in-human-capital-management: "The partnership affirms AWS as ADP's strategic cloud provider."
- [confirms] Amazon Web Services (KO, ir, published 2023-07-17) https://d1.awsstatic.com/psc-digital/2023/gc-300/mod-web-and-mobile/accelerate-full-stack-web-mobile-app-development-ko.pdf: "Migrating our systems to AWS made everything simpler."

Reverse side: https://valuechain.wiki/automatic-data-processing/customers.md · Ripple: https://valuechain.wiki/automatic-data-processing/ripple.md

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