Emeryville is a small employment hub, per http://www.census.gov/hhes/commuting/data/daytimepop.html

Employment/residence ratios

Emeryville 4.36 San Francisco 1.40 Oakland 1.06

and a few others FWIW

Berkeley 1.30 Dublin 1.05 Mountain View 1.47 Palo Alto 2.54 San Jose 0.88 (qualifying it as largest suburb in the US, IMO)