Gobb Lynn Security Specialists

Gobb Lynn Security Specialists was a Muggle security company. Their telephone number was 30 27 23.

Behind the scenes

 * The card in which Gobb Lynn Security Specialists was mentioned was featured on the "Extra Stuff" section of J.K. Rowling's Official Site. It was removed from said section shortly after.
 * This company's phone number was the combination needed to open the safe behind the secret door on Rowling's Official Site which revealed an excerpt from Harry Potter and the Half-Blood Prince.

Appearances

 * J.K. Rowling's Official Site