What Mainspring makes for data centers
private
Mainspring is a private company. It appears on 1 part of the AI data center — Reciprocating engines & engine microgrids — in the role of manufacturer. That part sits in Layer 8 — Power generation & energy supply.
Exposure
1 part across 1 layer
No disclosed data-center revenue share on file.
Parts, by layer
Layer 8 — Power generation & energy supply
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Reciprocating engines & engine microgrids | manufacturer | disclosed | Caterpillar, Cummins, Generac, Kawasaki Heavy, Mitsubishi Heavy Industries, Rolls-Royce | linear generators |
Where Mainspring sits in the stack
Mainspring's placements in this catalog cover 1 part, all in layer 8, power generation & energy supply. 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
- Reciprocating engines & engine microgrids — Diesel, natural-gas, or dual-fuel reciprocating engines assembled into modular microgrids for onsite or bridge power at a data center site.
Closest peers in this catalog
Latest feed
- AEP in deal to buy up to 1.6 GW of Mainspring linear generators — Utility Dive, 2026-10-15AEP is in an agreement to acquire up to 1.6 GW of linear generators from Mainspring.
Questions about Mainspring
- What does Mainspring make for AI data centers?
- This catalog places Mainspring on 1 part: Reciprocating engines & engine microgrids (manufacturer).
- Is Mainspring publicly traded?
- No listing is on file for Mainspring in this catalog; it is recorded as private.
- Who else makes reciprocating engines & engine microgrids for AI data centers?
- Caterpillar, Cummins, Generac, Kawasaki Heavy, Mitsubishi Heavy Industries and Rolls-Royce are also placed on Reciprocating engines & engine microgrids in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Mainspring the mix is 1 disclosed. "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.