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Aircraft spare parts

The 10 companies in this industry listed on the NYSE and Nasdaq are worth $100 bn combined; the largest are HEICO (HEI), Arxis, Inc. (ARXS) and Curtiss-Wright (CW). 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
10 companies value 100 bn revenue 15 bn margin 11.7% free cash flow 2.1 bn avg. score 3.3
HEI holds 43.1% of the group's value, 1.9x the runner-up
Rank Ticker Company Share Value Revenue Margin FCF 5 years FCF/px Yield What it does · why it is here
1 HEI HEICO
United States · score 6.0
 43% 43 bn 5.2 bn 16.4% 1.0 bn 2.4% 0.1% Replacement parts and electronics for aviation and defense · Certified replacement parts cheaper than the manufacturer's; steady growth for 30 years
2 ARXS Arxis, Inc.
United States · score 4.6
 22% 22 bn 1.8 bn 7.2% 0.3 bn 1.4% — Electronic and mechanical components for extreme environments · Connecticut — revenue of $1.8bn
3 CW Curtiss-Wright
United States · score 6.3
 18% 18 bn 3.6 bn 14.8% 0.6 bn 3.4% 0.2% Components for defense, naval nuclear and industry · Critical components for defense, nuclear and aerospace
4 LOAR Loar Holdings Inc.
United States · score 3.8
 6% 5.8 bn 0.6 bn 11.6% 0.1 bn 2.1% — Niche components for commercial, business and defense aviation · New York — revenue of $586m
5 VSEC VSE CORP
United States · score 1.8
 4% 4.4 bn 1.4 bn 5.5% 0.0 bn 0.0% 0.2% Aircraft and fleet parts and maintenance · Florida — revenue of $1.4bn
6 ATRO ASTRONICS CORP
United States · score 4.6
 3% 2.7 bn 0.9 bn 8.4% 0.1 bn 2.3% — Advanced technologies for aerospace, defense and electronics · New York — revenue of $942m
7 DCO DUCOMMUN INC /DE/
United States · score 0.0
 3% 2.6 bn 0.9 bn -2.4% -0.0 bn -1.0% — High-performance products for aerospace, defense and industry · California — revenue of $865m
8 IA INNOVATIVE SOLUTIONS & SUPPORT INC
United States · score 5.7
 0% 0.4 bn 0.1 bn 20.5% 0.0 bn 4.0% — Avionics for retrofit and original equipment makers · Pennsylvania — revenue of $93m
9 ASLE AerSale Corp
United States · score 0.0
 0% 0.2 bn 0.3 bn -1.2% -0.0 bn -15.5% — Buying, selling and managing used aircraft and parts · Florida — revenue of $304m
10 AIRI AIR INDUSTRIES GROUP
United States · score 0.0
 0% 0.0 bn 0.1 bn -3.8% 0.0 bn -39.1% — Precision components and assemblies for aerospace and defense · New York — revenue of $47m

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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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