Pretty much every major manufacturer has a bay area satellite office these days. Toyota has a research center in San Ramon and a woven office near the broadcom campus in Palo Alto. GM has an office in SOMA and in mountain view. Ford has an office literally a block away from Tesla HQ. Mercedes used to be near Cariad at moffet field, but now they're down by SJC. Nissan is in Santa Clara.

Need I continue? And Tesla is generally understood to pay on the lower end among those companies.