Who are Celestica Inc.'s major customers?

Celestica Inc. (CLS) key customers include: HYPERSCALER-CUSTOMERS, ONE-OF-OUR-HYPERSCALER-CUSTOMERS, THREE-CUSTOMERS-ALL-IN-OUR-CCS-SEGMENT, TOP-10-CUSTOMERS. View the full customer network at chainsifter.com/chain/CLS.

What sector is Celestica Inc. in?

Celestica Inc. (CLS) operates in the general sector. ChainSifter tracks its verified supply chain relationships including suppliers, customers, and strategic partners.

CLS Supply Chain: Celestica Inc. Suppliers & Customers

0Suppliers

4Customers

1Debt Items

0Related Chains

Celestica Inc. Suppliers

No suppliers on recordCelestica Inc. has not yet been matched to upstream suppliers in our database, or is still being processed.

Celestica Inc. Customers

Ticker	Name	Confidence	Evidence
HYPERSCALER-CUSTOMERS	HYPERSCALER-CUSTOMERS	90%	Increases in HPS revenue in Q1 2026 compared to Q1 2025 was driven by strong demand of our networking switch programs with hyperscaler customers.
ONE-OF-OUR-HYPERSCALER-CUSTOMERS	ONE-OF-OUR-HYPERSCALER-CUSTOMERS	90%	Enterprise end market revenue increased $416.7 million (101%) in Q1 2026 compared to Q1 2025, driven by the ramp-up of an AI/ML compute program with one of our hyperscaler customers.
THREE-CUSTOMERS-ALL-IN-OUR-CCS-SEGMENT	THREE-CUSTOMERS-ALL-IN-OUR-CCS-SEGMENT	90%	Three customers (all in our CCS segment) individually represented 10% or more of total revenue in Q1 2026 (35%, 15% and 15%).
TOP-10-CUSTOMERS	TOP-10-CUSTOMERS	85%	In the aggregate, our top 10 customers represented 84% of total revenue for Q1 2026 (Q1 2025 — 78%).

Celestica Inc. Debt Obligations

Instrument	Description	Confidence	Evidence
CLS-DEBT	Debt stack $941.7M	90%	Market cache reports total debt of $941.7M.

Celestica Inc. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Celestica Inc..

Celestica Inc. Ownership

Holder	Name	Confidence	Evidence
CLS-OWNER-FMR-LLC	FMR LLC	90%	13F overlay lists FMR LLC as top holder; 781 tracked holders.

Celestica Inc. Extended Supply Chain Network

No secondary connectionsNo correlated companies found through shared supply chain relationships.

Celestica Inc. Supply Chain