Note that these documents were written in 2012, and will likely age out quickly, but hopefully this might be of some help to you.

ARIN

• How to create a POC: which is your unique ID for ARIN.  (kind of like an ARIN ID card)
  
• How to create an ORGID and link a to a POC: How to validate your company with ARIN and link your ID to that company
  
• How to request a /23: and let your company have it's own IPv4 IP range. 
  
• How to request an ASN: and let your company be able to use BGP to peer with multiple carriers