The Directory
Industries We Serve
Factory Investigator files its investigations, buyer guides and news by manufacturing sector, so you can start from the plant you actually run. The operating problem rarely changes — get found by the right buyers, quote faster, hold quality and ship on time — but the evidence does, which is why the work is organised this way.
Coverage is uneven and still building: 8 of 23 sectors carry published work today. The rest are listed because they are in scope, not because they are covered yet — each one opens a real archive that stays empty until the first piece lands.
Work that applies to any plant, whatever it makes, is collected in the cross-sector archive. If you would rather start from what we do than from your sector, see the five services.

Metalworking, Machining & Machines
CNC Machining
Precision machined parts, tolerances, quoting, and shop growth.
Metal Fabrication
Cutting, forming, welding, and weldment/assembly shops.
Foundries & Metals
Casting, forging, and primary metal production.
Industrial Machinery
Builders of the machines other plants run.
Heavy & Ag Equipment
Construction, agricultural, and heavy mobile equipment.
Electronics & Electrical
PCB & Electronics
PCB fab, assembly, EMS, and box-build.
Semiconductors
Chips, wafers, and advanced components.
Electrical Equipment
Switchgear, motors, transformers, and controls.
Transportation & Vehicles
Automotive & EV
Parts, tooling, and assemblies for the auto/EV supply chain.
Aerospace & Defense
Flight-critical parts, systems, and compliance.
Marine & Rail
Boats, rail, and specialty vehicles.
Materials & Process
Plastics & Molding
Injection molding, extrusion, and molded components.
Chemicals & Coatings
Formulated chemicals, coatings, adhesives, and materials.
Building Materials
Products that go into buildings and construction.
Wood & Furniture
Furniture, cabinets, millwork, and wood products.
Textiles
Technical fabrics, sewn goods, and apparel.
Regulated & Consumer Goods
Medical Devices
Regulated devices, diagnostics, and surgical tools.
Pharma & Biotech
Drugs, biologics, APIs, and CDMO/CMO.
Food & Beverage
Packaged food, beverages, and ingredients.
Packaging & Print
Packaging & Containers
Cartons, corrugated, films, bottles, and cans.
Printing & Signage
Commercial print, labels, decals, and signage.
Energy
Oil & Gas
Pumps, valves, vessels, and equipment for oil & gas operations.
Energy & Utilities
Solar, wind, battery/storage, grid, and power-generation equipment.
Don’t see your exact niche?
The core playbooks — SEO that wins RFQs, capability pages that convert, choosing the right ERP/MES/quality stack, running leaner operations — apply to every factory, whatever it makes. Or tell us about your plant.