Northeastern Investigative Services LLC was founded by James Wojnar in 2008. NIS is a Private Detective Firm which conducts investigations for our clients across Massachusetts. We are known throughout the Springfield and Boston Massachusetts area for providing our clients the results and justice in which they deserve. We work for you. Whether you are looking for an infidelity investigation or you are looking for a long lost family member. We provide our clients with the investigative professionals.

By retaining Northeastern Investigative Services LLC you will know one thing. That is that NIS uses only licensed, bonded, and insured professional investigators. You will not find interns or inexperienced investigators on your cases. If you are looking for results, then call us toll free today at 8553419524 or visit us at We will provide you with a free consultation.

Professional Associations & Certifications

  • Member of NECA
  • Member of the LPDAM ( Licensed Private Detective Association of Massachusetts)

Serviced Areas

  • Springfield Massachusetts, Worcester Massachusetts, Cape Cod Massachusetts, Boston Massachusetts, Fall River Massachusetts, Chicopee Massachusetts, Foxboro Massachusetts, Hyannis Massachusetts, Ludlow Massachusetts, Natick Massachusetts,

Payment Options

  • American Express, Money Orders, Discover, PayPal, Cash Only, Personal Checks, Google Checkout, Travelers Checks, Debit Cards, MasterCard, VISA

Contact Details

  Person James Wojnar
  City Springfield , MA
  Zip Code 01128
  Address 340 Cooley Street, Suite 152
  Phone Number (413) 610-1200
  Mobile 4135305135
  Tollfree 8553419524

Business Representative

James Wojnar

Director of Investigations

Northeastern Investigative Services LLC, was founded by James Wojnar in 2008. James has been working in the private investigator business for the majority of the past decade.

Before working in the private investigator business, James worked in the private/corporate security business. His combined investigative and security experience over the past two decades has led to the founding of N.I.S in 2008. He has also earned a Bachelors Degree in Criminal Justice from Westfield State University.

Products & Services


Northeastern Investigative Services offers a wide range of services to clients of any arena.
Below is a brief list of our specialties at N. I. S. When hiring an investigator you want to hire the specialists to get the job done right.

Background Checks
Child Custody Investigations
Criminal Defense
Difficult Process Services
Executive Protection
GPS Tracking
Infidelity/ Matrimonial Investigations, etc.

We also offer professional investigative services to our clients:

Attorney Services (asset searches, background checks, cpcs investigations, etc.) .
Business Services (corporate security, covert camera & cctv installations, employee background checks, etc.) .
Insurance Services (activity checks, alive and well checks, auto liability and bodily injury claims, etc.) .
Investigation Services (aircraft & watercraft ownership, bar spotters, birth & death record searches, etc.) .

N. I. S. is your leader in MA investigations. Let our investigative specialists find you the information that you are looking for.

Customer Testimonials

"Jim Wojnar is the consummate professional. His commitment and follow-through is of a high standard. His best attributesare his ability to listen, understand his clients needs, and recommend an appropriate course of action. I would recommend his services to my closest friends and associates.."

"Thank you and your investigative staff for helping us win our case. The N.I.S. investigators went above and beyond to locate the key witness in our case!"

" the word that I would describe this firm. If I need a witness located or surveillance done on a subject, then this is the first and only investigative firm I contact because I know the job will be done right."

"I almost gave up on searching for my brother whom was given up for adoption at birth, then I contacted N.I.S. I would recommend this agency to all of my colleagues and anyone else whom is looking for a lost relative!"