We didn't get Angus neutered until he was 10. Yep, I said it...10. We really didn't see the need (Keisha was spayed & we didn't know the harm of not neutering). The only reason he was neutered was that he had an enlarged prostate. He never tried to get out of the yard, he was a good boy
Bon was just neutered last month (he was 1 yr & 2 mo). This was also a recommended time by our vet (1-2 yrs since he is a giant breed).
Roxey was around 5 months when she was spayed.
Huney was spayed shortly after we rescued (approximately 1 yr).

I guess what it all comes down to is that it is a personal decision (or a decision made by your breeder) on when to spay/neuter.