Vertical Integration Strategy
Manufacture 70% of components in-house rather than outsourcing to suppliers
Musk's approach to manufacturing reverses the prevailing industry wisdom of outsourcing. Rather than buying components from specialized suppliers, SpaceX and Tesla bring manufacturing in-house wherever the Idiot Index reveals excessive supplier markups. After a few years, SpaceX was making 70% of its rocket components internally. The strategy provides control over quality, cost, speed, and innovation across the entire supply chain, though it requires substantial upfront investment in tooling and talent.
- When a supplier charges more than the Idiot Index suggests is reasonable, build it yourself
- Control all aspects of manufacturing to control quality, cost, speed, and innovation
- Build Gigafactories where raw materials go in one end and finished products come out the other
- Cross-pollinate manufacturing knowledge across products and companies
- Challenge the assumption that specialists will always do it better—often they are just more expensive
- Calculate the Idiot Index for every major supplier componentCompare what you are paying to the raw material cost of each component. Rank by ratio to identify the biggest opportunities.Pro tipStart with your most expensive components. Even a modest cost reduction on a $250,000 part yields big savings.
- Evaluate in-house manufacturing feasibilityFor each high Idiot Index component, assess whether you have or can acquire the engineering talent and tooling to make it yourself.Pro tipLook at analogous manufacturing in other industries. SpaceX discovered that car wash valves could be modified to work with rocket fuel.WarningDo not try to in-house everything at once. Start with the components where the savings are largest and the manufacturing is most straightforward.
- Build manufacturing capability incrementallyAdd new manufacturing sections to your facility as you bring each component in-house. Each success builds capability for the next.Pro tipHire people from the relevant manufacturing domains—automotive engineers for metal forming, chemical engineers for material processing.
- Use cross-company knowledge transferApply manufacturing techniques from one product or company to another. Tesla automotive techniques can improve rocket manufacturing; rocket material science can improve car bodies.Pro tipMusk had the same VP of materials engineering at both Tesla and SpaceX, enabling direct cross-pollination of manufacturing innovations.
After being quoted $250,000 for a valve and $120,000 for an actuator, SpaceX systematically brought component manufacturing in-house. The valve was built for a fraction of the cost. The actuator was built for $5,000. Over a few years, SpaceX manufactured 70% of its rocket components internally.
The approach was born from frustration with aerospace suppliers who charged outrageous prices—$250,000 for a valve, $120,000 for an actuator. Musk realized these components were not inherently expensive; the suppliers were either inefficient or extracting monopoly rents. When a supplier tried to triple the price for aluminum domes mid-contract—going Russian on him, as Musk called it—he added dome manufacturing to the SpaceX facility. This became the default response to supplier problems.