I'm setting up a single-member LLC in Virginia to provide cybersecurity consulting, penetration testing, and compliance audit services to the US market. I've already cleared state registration and the EIN application; now I'm working on a business bank account, professional liability insurance, and SAM.gov registration so I can bid on government contracts down the line.
This is where choosing a NAICS code came up. Since cybersecurity isn't listed under a single dedicated code, I see consultants making different choices. Some go straight for 541512 (Computer Systems Design Services), others pick 541519 (Other Computer Related Services), and some independent auditors lean toward 541690 (Other Scientific and Technical Consulting Services).
What is the safest bet to pick as the primary code for cybersecurity consulting? Could choosing the wrong code cause technical issues with banks during credit or account opening, with professional insurance premiums, or when bidding on SBA small business contracts?