Key Business Industries in Temecula: 
- High-tech manufacturing
- Biomedical/Biotech
- Health technology/manufacturing
- Telecommunications
- Electronics
- Semiconductor
- Manufacturing
- Retail
- Tourism
Click Here for the list of Temecula's Major Employers 
Retail
"Over the past 10 years, Temecula’s retail sector consistently out-performed statewide growth trends. Temecula ranked high (100%) on The Growth Persistence Index and is one of nine cities with the highest retail sales rankings in the state." - California Retail Survey, 2005
Promenade Mall in Temecula – Situated on a 75 acre site located off of I-15 at Winchester Road, this 1 million sq. ft. center offers its patrons shopping at Macy’s Robinsons-May, Sears, JCPenney, and more than 130 specialty stores.
In addition to the Temecula regional mall and power center, there are over 25 neighborhood and community retail centers located throughout the city with major tenants including: Costco, Home Depot, Basset, Staples, Mervyns, Stein Mart, Kohl’s, Target, Sports Chalet, Circuit City, Barnes and Noble, Trader Joe’s and Home Goods.
Restaurants
The City has over 245 restaurants, coffee, and fast food establishments. New restaurants include Olive Garden, Red Lobster, El Torito, Macaroni Grill, California Pizza Kitchen, Iron Wok and Baily’s Fine Dining & Front Street Bar and Grill.
Temecula Auto Mall
- Norm Reeves Supergroup – Chrysler, Dodge, Jeep, Hyuadai, Subaru, Honda and Acura
- Rancho Lincoln- Mercury
- Rancho Ford
- Paradise Chevrolet
- Paradise Cadillac
- Toyota of Temecula Valley
- Carriage Motors – Pontiac, Buick, GMC
- Kia of Temecula Valley
- Saturn of Temecula