Long Island: private investigators
This directory contains businesses located primarily within the areas of Nassau and Suffolk County.You may also find listings for nearby Brooklyn and Queens. To add a business click here.

A private investigator, private detective, PI, or private eye, is a person who is hired by individuals or groups to undertake investigations. Private investigators often work for attorneys or insurance companies to investigate suspicious claims.

Featured Business Listing In - Private Investigators
Long Island Private Investigator, LLC
654 Wellwood Avenue, Suite D120
Lindenhurst, New York 11757
Phone: (516) 395-6101
654 Wellwood Avenue, Suite D120
Lindenhurst, New York 11757
Phone: (516) 395-6101
LOCAL ADVERTISING
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Standard Business Listing In - Private Investigators
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Litigation Support Services Inc -
33 East Merrick Road Valley Stream, New York 11580
Phone: (516) 825-1166 -
Macmillan Roy J Investigations -
2836 Janet Avenue North Bellmore, New York 11710
Phone: (516) 746-8320 -
Matthew A. Paul- Certified Fraud Examiner -
614 Campus Place Baldwin, New York 11510
Phone: (516) 868-8046 -
Millennium Protective Services -
760 Saint Lukes Place Baldwin, New York 11510
Phone: (516) 223-8424 -
N G H Associates Limited -
666 Old Country Road, Suite 810 Garden City, New York 11530
Phone: (516) 228-0600 -
New York Gold Shield- Inc. -
1225 Franklin Avenue - Suitef 325 Garden City, New York 11530
Phone: (516) 240-8090 -
Northern Intelligence Age -
3333 New Hyde Park Road, Suite 212 New Hyde Park, New York 11042
Phone: (516) 869-8800 -
Peter Berlin Retail Consulting Group Inc -
380 North Broadway Jericho, New York 11753
Phone: (516) 932-0450 -
Probe International Limited -
732 Sunrise Highway Suite 208 Baldwin, New York 11510
Phone: (516) 546-4234 -
Ray of & Associates Fire Investigators Inc -
2472 Grand Avenue Bellmore, New York 11710
Phone: (516) 679-9111 -
Renaissance Associates Limited -
1325 Franklin Avenue, Suite 225 Garden City, New York 11530
Phone: (516) 742-9125 -
Russo Thomas J Investigations Limited -
99 Hillside Avenue Williston Park, New York 11596
Phone: (516) 294-8644 -
S.C.S. Investigation & Protection Bureau -
Post Office Box 806 Uniondale, New York 11553
Phone: (516) 559-5200 -
Stolfa Investigations Inc -
1040 Hempstead Turnpike Franklin Square, New York 11010
Phone: (516) 326-0100 -
Stop Alarms & Security Systems -
510 Eagle Avenue West Hempstead, New York 11552
Phone: (516) 565-2300 -
Summit Security Services Inc -
1 European American Ba Uniondale, New York 11553
Phone: (516) 240-2400 -
Tele Trace Asset Locates -
320 Old Country Road, Suite 105 Garden City, New York 11530
Phone: (516) 741-3004 -
Virgin Security Services Inc -
2003 Jericho Turnpike New Hyde Park, New York 11040
Phone: (516) 775-0707 -
Xcluder Pre-Entry Security Systems Inc -
1 Maple Street Westbury, New York 11590
Phone: (516) 333-9300 -
A Pro-tek Security Guard Service Inc. -
70 Knickerbocker Ave Bohemia, New York 11716
Phone: (631) 244-8787 -
Absolute Investigative SVCS -
21 Massachusetts Avenue Port Jefferson Station, New York 11776
Phone: (631) 474-1095 -
All American Investigations & Claims Service -
P.O. Box 89 Lindenhurst, New York 11757
Phone: (631) 455-1766 -
American Medical Recovery Bureau -
112 Maple Place Port Jefferson, New York 11777
Phone: (631) 473-1010 -
Certified SIU Service Inc -
3279 Veterans Memorial Hw Suite D4 Ronkonkoma, New York 11779
Phone: (631) 580-5210 -
Columbo and Holmes Consulting Inc -
312 Noyack Road Southampton, New York 11968
Phone: (631) 283-5707 -
District & School Safety Services Inc -
134 4th Street Greenport, New York 11944
Phone: (631) 477-0181 -
East Coast Investigations & Security Service- Inc. -
264 N. Country Rd. Smithtown, New York 11787
Phone: (631) 926-8103 -
East End Investigations & Security Inc -
17 Main Street Sag Harbor, New York 11963
Phone: (631) 725-8400 -
East End Security Consultants Group -
P.O. Box 351 Stony Brook, New York 11790
Phone: (631) 766-5777 -
Fred Short Investigations -
28 Washington Heights South Selden, New York 11784
Phone: (631) 698-6700 -
Gandolfo Joseph Private Investigator -
1009 North Richmond Avenue Lindenhurst, New York 11757
Phone: (631) 957-0316 -
Genealogy Research Corporation -
196 East Main Street Suite 5 Huntington, New York 11743
Phone: (631) 673-5430 -
International Claim Svce And Investigations Inc -
1600 Deer Park Av Deer Park, New York 11729
Phone: (631) 254-1999 -
International Private Investigations -
2111 Smithtown Avenue Ronkonkoma, New York 11779
Phone: (631) 981-1177 -
Kelly Charles W Private Investigators -
26 Schuyler Drive Commack, New York 11725
Phone: (631) 499-0634 -
Lawn Mullen & Good International Limited -
181 West Main Street Suite E Babylon, New York 11702
Phone: (631) 321-6622 -
National Response Corporation -
3500 Sunrise Highway East Islip, New York 11730
Phone: (631) 224-9141 -
Norden Security Systems Inc -
510 Sunrise Highway West Babylon, New York 11704
Phone: (631) 888-4000 -
Occupational Safety & Health Assoc Corp -
154 Eastwood Blvd Centereach, New York 11720
Phone: (631) 580-2237 -
Paladin Sales Group -
734 Walt Whitman Road Suite 403 Melville, New York 11747
Phone: (631) 761-0590 -
Reliant Security & Investigation Services -
250 Nassau Blvd West Babylon, New York 11530
Phone: (631) 661-7797 -
Sonitrol of Long Island -
155 Knickerbocker Avenue Suite 2 Bohemia, New York 11716
Phone: (631) 218-2099 -
Special Services Bureau Inc -
2100 Middle Country Road Centereach, New York 11720
Phone: (631) 588-7777