| earthlink.net | Utah Professional Investigators Organization |
| wapi.com | World Association of Professional Investigators |
| usprocessservers.com | United States Process Servers Association |
| tfaguide.net | Time Finance Adjusters |
| socxfbi.org | Society of Former Special Agents of the Federal Bureau of Investigation |
| siaonline.org | Security Industry Online |
| scip.org | Society of Competitive Intelligence Professionals |
| scalinv.com | South Carolina Private Investigators Association |
| gen.va.us | Professional Investigators and Security Association (PISA) |
| picstlouis.org | Professional Investigators Council of Greater St. Louis |
Germany , ,