The ideal way to address a committee would be "Dear members of the committee" or "Dear Sirs"
International Olympic Committee Lausanne, Switzerland.
When addressing a letter of recommendation for college, you should use a formal tone and address it to the admissions committee or specific person indicated by the college. Be sure to include your contact information and the date at the top of the letter.
The web address of the Vidalia Onion Committee is: http://www.vidaliaonion.org
The web address of the Dorchester Skipjack Committee is: http://www.skipjack-nathan.org
The web address of the Community Preservation Committee is: http://willardchapel.org
The web address of the Uss Mass Memorial Committee is: http://www.battleshipcove.org
The web address of the National Committee To Preserve Social S is: http://www.ncpssm.org
The web address of the Grassy Run Historical Arts Committee is: www.grassyrun.org
The web address of the Watts Labor Community Action Committee is: www.wlcac.org
The web address of the Citizens Committee For Historic Preserv is: http://lasvegasnmcchp.com
The web address of the West Licking Historical Publication Committee is: wlhs2000.org
When addressing a recommendation letter for graduate school, you should use a formal tone and address it to the admissions committee or the specific program director. Be sure to include the recipient's full name, title, and the name of the institution.