If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
* * * * Minimum charge $400. * * * *. Minimum charge $400.
~ DC metro area (DC–VA–MD) ~ Expert in missing persons cases. We work nationally. ~ Discreet, personalized, effective, legal, ethical.
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~ Licenses: DCJS 11-18994, VA 99-257006, DCPD202097, MDPD23727 ~
Overview
Hired 80 times
Serves Middleburg, VA
Background checked
2 employees
16 years in business
Business hours
This pro hasn't listed their business hours.
Payment methods
This pro accepts payments via Cash, Check, PayPal, and Zelle.
Services offered
Services needed
Case type
Missing person(s) / Reunion
Work location
My customers travel to me
I travel to my customers
I work remotely (phone or internet)
Projects and media
Projects and media
Reviews
Customers rated this pro highly for work quality, professionalism, and responsiveness.
Excellent 4.9
52 reviews
5
96%
4
0%
3
0%
2
2%
1
2%
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Patricia S.
Dec 5, 2025
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Hired on Thumbtack
I reached out to this service for help after all law enforcement failed me. Mark immediately responded. Although my particular situation is complex and most push me off as just being “crazy”, he thoroughly listened to what I had to say, with zero judgement, asking all necessary questions and came up with an immediate recommendation on the first step to getting matters in the direction they need to go. For the first time dealing with such an emotional situation, I finally feel as though I found a solution. This is the most I’ve ever gotten working with many professionals within this past year. I finally have somewhat of a peace of mind and moving in the right direction just from our consultation, he assured me that based on his direction, if things do not work as expected, he will always be there when he is needed. I am truly so grateful that I came across this individual.
Private Investigation
Sherif H.
Jun 7, 2026
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Hired on Thumbtack
Mark was outstanding to work with. He was professional, knowledgeable, and extremely thorough throughout the entire process. He took the time to explain everything clearly, kept me informed every step of the way, and handled my case with the utmost discretion and integrity. His attention to detail and dedication to getting results were truly impressive. I felt confident knowing my case was in capable hands. I highly recommend Mark to anyone looking for a trustworthy, reliable, and highly skilled privateinvestigator. Thank you, Mark, for your exceptional service and hard work!
Private Investigation
Thumbtack U.
Apr 15, 2026
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Hired on Thumbtack
Working with Mark was one of the best decisions I’ve ever made. He handled my situation with genuine care and discretion. He never made me feel judged, he just wanted to help. Mark went above and beyond to uncover the answers I needed, and I’m deeply grateful for his hard work. If you need someone you can trust, Mark is the one.
Private Investigation
Dan L.
May 8, 2026
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Hired on Thumbtack
I reached out to Mark about a human trafficking problem. He stuck with me for over six months to address my concerns and to find a missing loved one. He helped me and didn't give up. He was prepared to go to Capitol Hill to meet with our congressman and tried to engage non-profits and the FBI to help us. I am so glad I found him and am grateful. Five stars Excellent! Thank you!
Private Investigation
Tina L.
May 20, 2026
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Hired on Thumbtack
From our very first conversation, Mark was incredibly personable, approachable, and easy to talk to. He took the time to understand our situation and offered candid, honest advice that ultimately saved us from making a major business mistake.
What stood out most was his wisdom and genuine kindness. It was clear that he truly cared about helping us make the right decision rather than simply getting us to sign up for his services. Give Mark a call, and he will help you in one form or another.
Private Investigation
Credentials
Background Check
Mark Krogness
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
********************************** ~ ******************************** •••• One call may solve your problem -- and no charge. We accomplish what others cannot!
What is your typical process for working with a new customer?
Minimum $400. Why? Unlike home services (plumbing, roofing, cleaning), private investigation relies upon strictest confidentiality, immediate trust, and discrete hiring. **************. Thumbtack blocked what else we wrote here ************************************************************* Thumbtack blocked what we wrote here
What education and/or training do you have that relates to your work?
DCJS Registered / Licensed & Insured
Compliance Officer
Certified Mediation Specialist
Financial Crimes Specialist (ACFCS)
Open Source Intelligence (OSINT)
Counter Surveillance Trainer
Debriefing / Interview and Interrogation Training
Counterintelligence Specialist
VIP Protection Team & Defensive Driving
Thirty years (30) foreign operations and investigations
