Queendom Compatibility Test
- Provides feedback about personality, relationship philosophies, communication styles, and values.
- http://www.queendom.com/compatibility/

CompatibleChoice Compatibility Test
- Ph.D. developed compatibility test for couples in seven critical areas that predict long term relationship satisfaction.
- http://www.compatiblechoice.com

True.com
- Provides personality feedback, as well as compatibility information between website members.
- http://www.true.com

Jung Marriage Test
- Marriage compatibility test based on the famous approach of Jung and Myers-Briggs. Gives a quantitative measure of partners compatibility.
- http://www.humanmetrics.com/infomate/infomatepass.asp

Your Zona
- Offers a personality test focused on relationships.
- http://yourzona.com

eHarmony
- Personality matching of couples on 29 dimensions that determine long-term success.
- http://www.eharmony.com/

SimilarMinds.com Compatibility Test
- Rates friendship and relationship compatibility between two people.
- http://similarminds.com/match/

Type Tango
- A dating site using Myers-Briggs/Keirsey personality theory for matching.
- http://www.typetango.com/

Socionics Dating
- Uses the Socionics personality typing system to identify others who are compatible.
- http://socionicsdating.com/

Finding the Love of Your Life
- Offers a personality profile as a tool to reveal compatibility, emotional development level and natural preferences for specific personality type. Identifies positive and negative traits. Reveals mismatch and complement levels.
- http://findingtheloveofyourlife.com/