Private#3 of 11 in this industry2 markets

Amentum

amentum.com

military defense contractorsconstruction engineering services
Revenue$14.4Bfrom a sourced record
Markets named in2across this research
Incumbent in2the one to displace
Rank in industry3 / 11by revenue
01

Where it competes

Every market in this research that names Amentum. Where it is the named incumbent it leads the list. The entry signal is the market’s, not the company’s — it says how open that market is to someone new.

MarketRoleShareEntry signal
Defence Logistics, Sustainment & Global Supply Chain Contracting
54161 Management consulting services
Incumbent — 80% entry signal
Defence Services & C5ISR Integration
541330 Engineering services
Incumbent — 45% entry signal
02

Others in Engineering services

Ranked by revenue. Companies that disclose none follow, ordered by how many markets name them.

1 L3Harris NYSE:LHX $21.9B
2 Leidos NYSE:LDOS $17.2B
3 Amentum Private $14.4B
4 Booz Allen Hamilton NYSE:BAH $11.2B
5 CACI International NYSE:CACI $9.6B
6 SAIC Private $7.3B
7 Parsons PSN $6.4B
8 Calian TSX:CGY $774M
9 BAE Systems BAESY —
10 General Dynamics NYSE:GD —
11 Peraton Private —

Company details are from the search.cos database (snapshot 2026-10-18); market roles, shares and sourced revenue are from the research records linked above. Filed under the industry it serves — a software vendor sits with the industry that buys from it. Ranks convert currencies at approximate rates to put companies in order; every figure shown is in the currency it was reported in.