u/FewCollar227

Criteria used: A company qualifies only if (1) their own engineers designed the engine, (2) it was built specifically for F1, not a road engine, F2 engine, or Indy engine that appeared in a World Championship race, and (3) the credit goes to the actual builder, not the funder. This is why Cosworth appears instead of Ford (Ford paid for it, Cosworth engineers built it) and why Honda RBPT/RBPT badges are counted under Honda (Honda employees built those engines throughout).

Names like TAG Heuer, Petronas, BWT Mercedes, Playlife, Megatron are excluded as they were sponsor or rebadge names on engines built by someone else entirely.

Indy 500 engines (Offenhauser, Novi, Cummins, Pratt & Whitney) are excluded despite appearing in World Championship records because they were built for Indianapolis, not F1. The Indy 500 counted toward the F1 championship from 1950–60 but was run to completely different regulations.

Life (1990) is included despite never qualifying as they genuinely designed and built their own W12 engine specifically for F1. Never making the grid does not disqualify a genuine manufacturer effort.

Red Bull Powertrains refers to their 2026 programme only, when they debuted their very own engine. The 2022–2025 engines wearing the RBPT badge were entirely Honda's work.

I might have missed some explanations but you get the gist. Don't rip me up. I had an idea, I tried to be accurate but got sucked in a rabbit hole and left a lot of time scratching my head.

1950-1974 : 22 New Manufacturers

1975-1999: 10 New Manufacturers

2000-2024: 1 New Manufacturer

2025-2049*: 2 New Manufacturers