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PROCUREMENTJune 30, 2026·7 MIN READ·MPBxChange Research·

The Connected Supply Base: $1.6 Trillion of Markets, and the Companies That Bridge Them

Mapping 15 industrial verticals as one network: roughly $1.6 trillion of addressable markets, and the 305 companies that quietly connect them, from the chemistry majors serving every electronics line to the equipment makers spanning robotics, semiconductors, and machinery.

305
Companies that appear across two or more verticals, the connective tissue of the supply base

It is tempting to treat industrial verticals as separate worlds: robotics over here, semiconductors there, chemicals somewhere else. The data says otherwise. Across the verticals MPBxChange maps, the same companies, the same countries, and the same spec dimensions recur, knitting roughly $1.6 trillion of addressable markets into a single connected supply base. This is what that network looks like, and why the connections matter more than the silos.

A $1.6 trillion economy, one vertical at a time

Bar chart of market size by vertical: automotive 700, HVAC 155, semiconductor equipment 117, medical 110, down to EV battery 42
Automotive parts dominate at roughly $700B, ahead of HVAC, semiconductor equipment, and medical. Across all 15 verticals the addressable markets total about $1.6 trillion. Sources: SEMI, Grand View, MarketsandMarkets, Technavio and others, 2024 estimates (definitions vary).

The verticals span three orders of magnitude, from automotive parts at roughly $700 billion to used machinery and data-center cooling near $21 billion each. But size is not the interesting part. The interesting part is that a buyer or supplier active in one of these markets is almost never active in only one, because the firms that serve them overlap.

The verticals connect through companies

Bar chart of vertical pairs by shared companies: machinery-semi 120, semi-semi-equipment 119, machinery-semi-equipment 118, chemicals-PCB 65
The verticals that share the most suppliers: used machinery, semiconductor materials, and semiconductor equipment run on one OEM base; chemicals, PCB, and semiconductor share the chemistry majors. Source: MPBxChange catalogs (cross-vertical brand overlap).

Of roughly 2,250 named companies in the catalogs, 305 appear in two or more verticals. Three clusters fall out. An electronics-equipment cluster (used machinery, semiconductor materials, semiconductor equipment) shares more than 100 companies per pair, the same OEMs sell across all three. A process-chemistry cluster ties chemicals to PCB and semiconductor through the chemistry majors. And an energy-mobility cluster links automotive, solar, and EV battery. The supply base is not 15 lists; it is one web with dense bridges.

305
Companies spanning two or more verticals
6
Verticals bridged by the widest connectors (Honeywell, 3M, Doosan)
120
Companies shared between used machinery and semiconductor materials alone
3
Meta-clusters: electronics-equipment, process-chemistry, energy-mobility

Of 2,250 companies, 305 bridge multiple verticals. The supply base is not 15 separate lists; it is one connected network, and the bridges are where the leverage is.

Why the connections are the opportunity

For a procurement platform, the bridges are commercially load-bearing. A supplier already verified in chemicals is a qualified candidate for PCB and semiconductor, the cross-sell is in the data. A buyer sourcing across verticals may be unknowingly concentrated on a single shared supplier, Honeywell spans six verticals, so a disruption there is not a one-market event. And the shared spec dimensions, the same IP ratings, compliance regimes, and material grades recurring across verticals, are exactly what lets one verification and one spec language travel across the whole network. That is the thesis the connected map makes visible.

  • The 15 verticals total roughly $1.6 trillion in addressable markets, but they are connected, not separate.
  • 305 companies bridge two or more verticals; the widest (Honeywell, 3M, Doosan) span six each.
  • Three meta-clusters emerge: electronics-equipment, process-chemistry, and energy-mobility, each tied by 50 to 120 shared companies.
  • The bridges drive cross-sell (a verified supplier in one vertical is a candidate in its neighbors) and surface concentration risk (shared suppliers are shared single points of failure).

Mapping the industrial supply base as a connected network, by company, by country, and by shared spec, turns 15 catalogs into one intelligence layer. The silos are an accident of how the data was collected. The connections are the real structure, and they are where a Thailand-hub platform finds both its cross-sell and its risk.

Sources
Cross-vertical company overlap · MPBxChange catalogs (15 verticals, ~2,250 named companies): 305 firms appear in 2+ verticals; vertical-pair overlap computed from shared brands.
Market sizes by vertical · Compiled 2024 estimates per vertical (SEMI, Grand View Research, MarketsandMarkets, Technavio, Polaris, DataBridge and others); definitions vary by firm. Total ~$1.6T addressable.
Connected spec map · MPBxChange spec universe (/spec-map): 15 verticals, 80 spec dimensions, shared dimensions bridging verticals.
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