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Electronic and space defense

The 13 companies in this industry listed on the NYSE and Nasdaq are worth $149 bn combined; the largest are Northrop Grumman (NOC), L3Harris Technologies (LHX) and Huntington Ingalls (HII). For each one: what it does, revenue, margin, free cash flow over the last five years and a score from 0 to 10.

Data as of October 2026

Comfortable leader
13 companies value 149 bn revenue 101 bn margin 7.1% free cash flow 6.5 bn avg. score 3.3
NOC holds 48.6% of the group's value, 1.6x the runner-up
Rank Ticker Company Share Value Revenue Margin FCF 5 years FCF/px Yield What it does · why it is here
1 NOC Northrop Grumman
United States · score 6.4
 49% 73 bn 43 bn 10.5% 3.6 bn 5.0% 1.9% Aircraft, missiles, satellites and defense systems · Leader in the B-21 bomber, Sentinel nuclear missiles and space systems
2 LHX L3Harris Technologies
United States · score 6.3
 30% 45 bn 39 bn 4.8% 2.8 bn 6.2% 2.0% Tactical communications, defense electronics and space · Leader in tactical communications and electronic warfare; the nimblest mid-sized 'prime'
3 HII Huntington Ingalls
United States · score 3.1
 7% 11 bn 13 bn 5.0% -0.1 bn -0.8% 2.0% Building aircraft carriers, submarines and warships · The only US builder of aircraft carriers
4 DRS Leonardo DRS, Inc.
United States · score 6.2
 6% 9.4 bn 3.8 bn 8.5% 0.4 bn 3.9% — Defense electronics for the US and allied forces · Virginia — revenue of $3.8bn
5 MRCY MERCURY SYSTEMS INC
United States · score 1.7
 3% 4.6 bn 1.0 bn -3.0% 0.1 bn 1.5% — Aerospace and defense electronics for signal processing · Massachusetts — revenue of $984m
6 LUNR Intuitive Machines, Inc.
United States · score 0.0
 2% 2.5 bn 0.5 bn -26.6% -0.2 bn -7.6% — Spacecraft and space infrastructure for low orbit, lunar and deep space · Texas — revenue of $490m
7 AVEX AEVEX Corp.
United States · score 1.1
 1% 1.7 bn 0.7 bn 6.5% -0.1 bn -4.1% — Aerial and intelligence solutions for defense · California — revenue of $697m
8 NN NEXTNAV INC.
United States · score 0.0
 1% 1.6 bn 0.0 bn -28x -0.1 bn -3.3% — Positioning, navigation and timing as an alternative to GPS · Virginia — revenue of $4m
9 KOPN KOPIN CORP
United States · score 2.2
 0% 0.7 bn 0.0 bn 18.3% -0.0 bn -2.8% — Microdisplays and optical systems for defense and industry · Massachusetts — revenue of $44m
10 ESP ESPEY MFG & ELECTRONICS CORP
United States · score 5.1
 0% 0.2 bn 0.1 bn 24.2% 0.0 bn 1.6% 3.0% Power electronics for military use and harsh environments · New York — revenue of $46m
11 OPXS Optex Systems Holdings Inc
United States · score 4.8
 0% 0.1 bn 0.0 bn 9.8% 0.0 bn 2.2% — Periscopes, sights and night vision optics for defense · Texas — revenue of $40m
12 CODA Coda Octopus Group, Inc.
United States · score 5.7
 0% 0.1 bn 0.0 bn 17.6% 0.0 bn 5.1% — Marine technology, acoustic sensors and defense engineering · Florida — revenue of $29m
13 MIND MIND TECHNOLOGY, INC
United States · score 0.4
 0% 0.0 bn 0.0 bn -6.8% 0.0 bn -10.0% — Technology for oceanography, seismic and maritime security · Texas — revenue of $35m

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What this is. A catalogue, not a guide. Every industry with stocks listed on the NYSE or NASDAQ, the companies contending for its leadership, what each one does according to its own annual report, and the balance sheet it filed with the SEC.

The score runs from 0 to 10 and compares each company with every other one in the almanac on cash generation, profitability, debt, dividends and consistency over the last five years. The higher it is, the better the company fares in that comparison. Curious how much each part weighs? Ask at the bottom of the page.

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