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About Us

Jonathan Sirko is a licensed private investigator with over 20 years of experience in all types of investigations, from criminal to corporate. Jonathan leads our team of investigators.  His expertise and knowledge of the industry, combined with his commitment to results, have made him one of the most sought-after security and investigations specialists in the area.

He takes a methodical and precise approach to each case and is dedicated to getting his clients the best possible outcome. With a proven track record of success and a commitment to customer satisfaction, Jonathan Sirko is the ideal choice for all of your security and investigation needs.  

Bride's Kiss

Cheating Spouse

You’re here because you need the truth. Just the fear that someone may be cheating on you can be too stressful to deal with. But Sirko International Investigations is here to help give you the peace of mind that you deserve. If someone is cheating on you, our goal is to get proof. To keep track of what we find, we can collect evidence through digital photo and video surveillance. Sirko is led by an investigator with years of law enforcement and surveillance experience. And here’s the important thing: your business with us is private and confidential. That means if we don’t find evidence of cheating, no one has to know that you checked in the first place. You won’t risk ruining the relationship.

Police car

False Arrest

Do you believe that you’ve been falsely arrested? Or has someone you know been falsely imprisoned? If so, Sirko International Investigations may be able to help a criminal attorney involved with your situation. Our licensed and insured investigation firm can provide you or your attorney with a detailed overview of your case. We are able to review case files when possible, visit the arrest scene, locate and interview possible witnesses, take photos, and much more.

Couple in love

Dating Background

Here’s a quick fact you might not know. At this time, nearly one in three people who get married met their spouse through the internet. And in that way, online dating or meeting new friends from social networking sites can be good. But there are also potential dangers…. Many people that are on dating or other websites aren’t honest. Some pretend to be something or someone that they’re not. Some use fake or old photos. Some hide the fact that they’re already married. And there are some people that try to scam or even hurt others. So how can you meet the right people, while avoiding the ones that may try to scam or harm you?

Busy Street

Witness Location Services

Sirko International Investigations can help attorneys locate important witnesses. Our locally owned firm is led by an investigator with years of law enforcement experience in locating individuals. We’re licensed, insured, and have the experience that you deserve.


Missing Persons

There are many reasons why a missing person search can be done. You may be looking for a relative, a loved one, or old friends. But there’s something very important that you need to know about missing person location services. Not all business offering to locate a missing person are the same. Some websites only offer a database of information related to a person. And many times, that information can be very outdated. But Sirko International Investigations is a licensed and insured investigative firm. So you won’t be buying outdated info from a website, but instead, getting help from a real person. One with years of actual law enforcement experience.

Dollar Notes

Asset Investigations

Sirko International offers you investigative services related to assets, past judgments, liens, insurance claims, business backgrounds, filings, or other businesses that an individual may be associated with.

Camera Lens


Do you need to keep an eye on someone? Having problems at your business or home, and need video surveillance assistance? Sirko International can help. Sirko is a locally owned and operated by a  Atlanta Georgia private investigation firm, led by an investigator with years of law enforcement experience.

Girl Behind a Curtain

Counter Surveillance

Is someone keeping an unwanted eye on what you do? Ever have personal or business discussions that you need to keep private? Then you need to speak to the investigative experts at Sirko International. Sirko International is a private investigation firm run by an investigator with years of local law enforcement experience.


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