What Flex makes for data centers

public · HQ Austin, United States · flex.com

Flex is a contract manufacturer that builds rack-level compute and power infrastructure for AI data centers: custom power shelves and PSUs for GPU racks, 800 V DC power modules, and liquid-cooling hardware including JetCool cold plates and coolant distribution units. It also provides optics contract manufacturing and system integration for hyperscalers, reported inside its Cloud and Power Infrastructure segment.

Listing
US exchanges (NYSE/Nasdaq): FLEX· 76.55 USD -0.18% · mkt cap 28.3B USD
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
5 parts across 4 layers
FY2026 results: Cloud and Power Infrastructure segment revenue of $6.6 billion, up 38% year over year (Flex Q4/FY2026 results release, May 2026).

Parts, by layer

Layer 3 — Networking & interconnect

PartRoleConfidenceCompetitorsNote
Optics contract manufacturingmanufacturerinferredCelestica, Fabrinet, Jabil, Sanmina

Layer 4 — Servers, racks & integration

Layer 5 — Liquid cooling (IT-side: chip to CDU)

PartRoleConfidenceCompetitorsNote
Direct-to-chip cold platesmanufacturerinferredAVC, Auras, Delta Electronics, Fositek, Foxconn (Hon Hai), Jentech

Layer 7 — Electrical: power distribution (grid to rack)

Where Flex sits in the stack

Flex's placements in this catalog cover 5 parts, from layer 3 (networking & interconnect) to layer 7 (electrical: power distribution (grid to rack)). None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.

What these parts are

Closest peers in this catalog

Seen in real machines

Flex is named in 1 of the rack teardowns and supercomputer breakdowns on this site. Each line below is a piece of that machine.

Disclosed customers

Customer%MetricPeriodFiling
one customer12%revenue2026-06-2610-Q
largest customers (combined)45%revenue2026-03-3110-K

Questions about Flex

What does Flex make for AI data centers?
This catalog places Flex on 5 parts: Optics contract manufacturing (manufacturer), EMS, system integration & rack-level test (manufacturer), Power shelves & PSUs (manufacturer), Direct-to-chip cold plates (manufacturer) and 800 V DC architecture & solid-state transformers (manufacturer).
Is Flex publicly traded?
Yes — Flex is listed on US exchanges (NYSE/Nasdaq) under FLEX. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
Where is Flex based?
Austin, United States, per the company record in this catalog.
Who else makes optics contract manufacturing for AI data centers?
Celestica, Fabrinet, Jabil and Sanmina are also placed on Optics contract manufacturing in this catalog.
How well sourced are these placements?
Every part→company placement carries a confidence tag. For Flex the mix is 1 disclosed and 4 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.

Answers are generated from this catalog's own rows — see sources & method.

Verification: enriched, last verified 2026-08-27. Sources: flex.com · www.prnewswire.com.· Markdown · JSON