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NOTE: Information shown below has been voluntarily submitted by individuals interested in establishing mutually desired contact between half-siblings and/or donors (genetic relatives).

Disclaimer: This registry is intended strictly for informational purposes, and is neither endorsed nor supported by any individual or organization. Please note that while access to this list is restricted to individuals over 18 years of age, it is up to each and every parent to supervise and monitor their child's use of the Internet.

Posted by Parent
Posted by Sperm Donor
Posted by Egg Donor
Posted By Offspring (Male)
Posted by Offspring (Female)
Posted by Offspring (No Gender Specified)
Has Medical Info
Has Photos
Donor Q&A
Donor Match
Sibling Match

California Cryobank (CCB)

Sperm Bank

The parent company is now Generate Life Sciences. Also Nordic Cryobank (European Sperm Bank) in Denmark: donor numbers in the 7000s and 7100s. CCB was established in 1977, Nordic Cryobank/European Sperm Bank was established in 2004. Those people using the Nordic donors mentioned above, please also post under Nordic Cryobank/European Sperm Bank, and also post the alias donor name if known. 2020: Generate Life Sciences/CCB now also operates the NW Cryobank and Manhattan Cryobank.


Donor ID & Info Offspring / Contact Info
Donor ID: 2510
  • Polish.
  • Brown Straight hair.
  • Hazel eyes.
  • Fair complexion.
  • PHD Physics.
  • NASA.
  • Female born May 1 2012
  • Male born May 1 2012
  • Read message posted 05/27/15
  • Updated on 06/02/15
  • parent Post Medical Update
  • Caucasian.
  • Height: 6"2.
  • Blood type A+
  • Weight: 185.
  • Light brown Straight hair.
  • Hazel eyes.
  • Medium complexion.
  • Male born Sep 2008
  • Posted 12/27/10
  • Updated on 02/20/13
  • parent
  • Female born Dec 18 2008
  • Read message posted 03/31/10
  • Updated on 03/31/10
  • parent
  • Swedish/Polish.
  • Height: 6 ' 2 ".
  • Blood type A+
  • Weight: 185.
  • Hazel eyes.
  • Medium complexion.
  • Male born Mar 3 2008
  • Female born Mar 3 2008
  • Read message posted 09/23/08
  • Updated on 09/16/10
  • parent
  • Swedish/Polish.
  • Blood type A+
  • Brown hair.
  • Hazel eyes.
  • Student.
  • Female born Nov 2008
  • Read message posted 11/12/07
  • Updated on 02/15/09
  • parent
There are a total of 7 offspring, 7 sibling matches, and 0 donor to offspring matches for this donor.

Colorado Reproductive Endrocrinology

Doctors Office

Main clinic and laboratory: Denver, CO: Denver Rose Medical Center, Wolf Surgery Building, 4600 East Hale Parkway, Suite 350, Denver, Colorado 80220. Satellite office- Parker, CO: Parker Adventist Hospital, 9397 Crown Crest Blvd., Suite 100, Parker, Colorado 80138.


Donor ID & Info Offspring / Contact Info
Donor ID: 2510
  • Male born Mar 3 2008
  • Female born Mar 3 2008
  • Posted 09/22/08
  • Updated on 09/23/08
  • parent
There are a total of 2 offspring, 0 sibling matches, and 0 donor to offspring matches for this donor.