Medeco locks, Mul-T-lock, Abloy locks Rounded to 1 Company ASSA ABLOY
Having a high-security pick and bump proof lock installed would probably be your best solution.
Mul-t-lock is a lock company known for its quality and resistance to pick and bump attempts with the addition of other security features which would be unlikely to be found on other types of locks such as drill proof and unauthorized key copying.
In the event that you have an office or own a small business property, you must be aware of the fact that high percentage of theft occur by employees.
Installing such high security lock will ensure that no unauthorized duplication of a key will be made.
High security key ways are patent protected which implies that only the lock manufacturer can have a duplicate of the key made and will only be provided to the associated locksmith company who made the order of the lock.
A high security lock is manufactured with the most solid material.
These locks would be much heavier, with thicker hardware components.