Private Investigation

Private Investigation


Entrust a professional and experienced Private Investigator


A lot has changed since our agency began in 1965, but our dedication to providing you with the highest standards of service and privacy in the investigation industry certainly has not. At SDA, we pride ourselves on the fact that we have never had a complaint filed against us with the N.J. State Police since the companies inception.


A Private Investigator is hired to help their clients find out information regarding a missing person, assets, criminal backgrounds, driving records, pre-employment screenings and marital issues. Other areas are insurance fraud, criminal cases, child custody or a multitude of other areas. Call us and discuss your case confidentially.









• Corporate search

• Employment

• Federal, state, and county searches

• Investigations

• Judgments

• Pending law suits

• Postal forwarding

• Property inspection

• Property tax records

• Skip tracing

• Marital Issues - Spouse Issues

Assets and Finances


• Advanced asset search

• Asset search

• Bankruptcies

• Child support

• Credit reports

• Federal and property tax liens

• Insurance, license, and vehicle information

• Real property

• Social security searches

• Tax IDs

Registered members of Registered members of Dun & Bradstreet:


Arson Investigators                                    

Private Investigation


The Facts You Need, When You Need Them


Don't let yourself be given the slip - stay a step ahead with the help of our private investigators.




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Spartan Detective Agency has appointed a new Managing Director.  In 2013 Edward F. Koster was proudly named Director of SDA and sees and manages the daily operation along with the case details for the detectives.  He is very in tune with the surrounding community as Mr. Koster has 25 years as in Law Enforcement in surrounding area as well as extensive tactical training making this a perfect fit for the entire team.  "That was a very exciting time in my life, however this new chapter has rekindled my love for the law".   Mr. Koster also brings his 20 years of Banking expertise to SDA as an owner of a mortgage company, tenured by his years at some of the leading banking institutions in the region.  He actively holds a Mortgage Banking License, making him and his team the perfect Agency for any Banking Fraud related matters. Spartan Detective Agency you go to Investigators!


Check back for Future News....






Spartan Detective Agency Inc.

2009 Morris Avenue

Union, NJ 07083


Tel:  855-SPARTAN

Fax:  888-224-4405



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Business Hours

Monday - Friday 8:30 - 6:00


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