I don’t know if this’ll be useful to anyone or not, but over the past several months I’ve compiled a list of the physical locations of some search (using the term loosely) companies. Why? Because deep in my soul there still lives a librarian and ontologist. I’ve limited it to companies that have English products.

It’s certainly not exhaustive, so if you know more, send them my way.

United States

Silicon Valley/Peninsula/South Bay
A9 - Palo Alto
Become - Mountain View
Collarity - Palo Alto
Google - HQ in Mountain View
Kosmix - Mountrain View
Riya - San Mateo
Spock
Surfwax - Menlo Park
Yahoo - HQ in Sunnyvale

San Francisco
Groxis
LookSmart
Powerset
Rojo
Technorati
Trulia

East Bay
Ask - HQ in Emeryville

Washington State
Findory - Seattle, WA
Infospace - HQ in Bellevue
MSN - HQ in Redmond
Zillow - Seattle

Elsewhere in the US
Answers.com - New York, NY and Jersulem, Israel
AOL - Dulles, VA
Gigablast - Albuqurque, NM
Icerocket - Dallas, TX
Indeed - Stamford, CT and Austin, TX
Lycos (Hotbot) - Waltham, MA
Relona - Nashua, NH
Snap - Pasadena, CA
Vivisimo (Clusty) - Pittsburgh, PA

Outside the US

Exalead - France
Kartoo - France
Lexxe - Australia

Not sure where these are located

Eurekester -SF, New Zealand?
Dogpile
Keotag
Ixquick
Metacrawler
Metafind
Rawsugar
Rollyo
Webcrawler
Wink