In Africa

Cape Town (South Africa)
http://www.citycycletours.co.za/
http://www.awoltours.co.za/
http://www.downhilladventures.com

Soweto (South Africa)
http://cycleinsoweto.com
http://www.sowetocycletours.com

Durban (South Africa)
http://www.beachandbush.co.za

In Europe

Amsterdam (Netherlands)
http://www.amsterdamcitytours.com
http://www.mikesbiketoursamsterdam.com
http://joyridetours.nl/

Berlin (Germany)
http://fattirebiketours.com/berlin/tours
http://www.berlincitytours.com

Barcelona (Spain)
http://fattirebiketours.com/barcelona

Tallin (Estonia)
http://www.citybike.ee

London (England)
http://www.londonbicycle.com
http://guidedbiketourlondon.com/city-of-london-bike-tour.html

Munich (Germany)
http://www.radiusmunich.com/bike-tours.html

Paris (France)
http://www.bikeabouttours.com

Prague (Czech Republic)
http://www.citybike-prague.com

Dublin (Ireland)
http://www.dublincitybiketours.com/

Vienna (Austria)
http://www.viennaexplorer.com/

Barcelona (Spain)
http://www.barcelonaciclotour.com/eng/

Valencia (Spain)
http://www.valencia-cityguide.com

Krakow (Poland)
http://www.krakow-tours.com

Budapest (Hungary)
http://www.budapestbikebreeze.com/

Rome (Italy)
http://www.topbikerental.com/Index.php

In the Far East

Beijing (China)
http://www.bikebeijing.com

Shanghai and Suzhou (China)
http://www.chinacycletours.com/
http://www.bikeshanghai.com/

Hanoi (Vietnam)
http://biketourvietnam.com/

Bangkok (Thailand)
http://www.covankessel.com
http://www.bangkokbikerides.com/
http://grasshopperadventures.com

Xian (China)
http://www.bikexian.com/

Phuket (Thailand)
http://www.amazingbiketoursthailand.asia/

In America

New York
http://www.bikenewyork.org
http://www.bicycletournewyorkcity.com/
http://www.ridethecity.com/

Chicago
http://www.bikechicago.com/
http://www.bobbysbikehike.com/

Portland (Oregon)
http://www.pedalbiketours.com

St Louis
http://citycyclingtours.com

Seattle
http://www.ibike.org/ibike/seattle/

Vancouver (Canada)
http://www.citybycycle.com

San Francisco
http://www.baycitybike.com

Park City, (Utah)
http://bicycletouringpro.com

Kansas City
http://www.kcbc.org

Boston
http://www.urbanadventours.com

Atlanta
http://www.atlantatours.us

In South America

Santiago (Chili)
http://www.labicicletaverde.com/

Buenos Aires (Argentina)
http://www.4rentargentina.com/buenos-aires-bike-tours.html
http://www.easybuenosairescity.com/tours1.htm

Rio de Janeiro (Brazil)
http://www.toursbylocals.com/riobybike
http://www.gringo-rio.com/

São Paulo (Brazil)
http://www.ondepedalar.com
http://www.brazadv.com

Down-Under

Christ Church (Australia)
http://www.chchbiketours.co.nz/

Sydney (Australia)
http://www.sydneybybike.com.au/
http://www.bonzabiketours.com/
http://www.bikebuffs.com.au/