KoolTorch
- Provides a search engine of ODP listings. Results are organised into clusters that represent ODP listings in each branch. Thumbnail previews of sites are available. [ Requires Internet Explorer. ]
- http://www.kooltorch.com/

Karnatak Chamber of Commerce and Industry
- Business organization in Hubli, India, which includes a copy of the Open Directory regional category for India, with site previews by Thumbshots and some added advertising.
- http://www.kccihubli.org/

KingBloom Directory
- A human edited web and search directory. Also includes the entire ODP directory; ODP data includes screen shots of each listing.
- http://dmoz.kingbloom.com/

Knowledge.com
- Directory using ODP data with related news for each category.
- http://www.knowledge.com/

Kitez
- A specialist directory of kite-related sites based on ODP data, which uses a DNS search interface to find kite sites via the user's own browser.
- http://www.kitez.com/

Kabissa - Space for Change in Africa
- Seeks to strengthen the capacity of African non-profits to build civil society and democracy in Africa. Includes a directory using live data from the ODP Regional: Africa.
- http://www.kabissa.org/