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The 5 Best Private Investigators in Bangkok

The 6 Best Private Investigators in Bangkok

How We Chose the 5 Best Private Investigators in Bangkok

Credibility

We checked these private investigator agencies’ credibility by assessing their track record for positive and successful client experiences.

Professionalism

A professional private investigator must have proven integrity, confidentiality, skills, and reliability.

Communication

The best private investigator must be able to update their clients regularly.

1. Zele Investigators Thailand

Zele Investigators Thailand

Services: Surveillance, Background Checks, Corporate Checks, Insurance Fraud Investigations, Finding Missing Person, Process Service, and Civil Document Retrieval

Website: https://www.thailand-pi.com

Address: Q House Lumpini, 27th Flr, 1 S Sathon Rd, Bangkok 10120

Contact Details: Tel: (+66) 02-648-5080

Email: help@thailand-pi.com 

Operating Hours: Open 24 hours

Google Reviews score5/5
Facebook reviews score 5/5
Total reviews5/5 
Score consistency 5/5
Credibility5/5
Professionalism5/5
Ease of Communication5/5

Pros

  • Credible private investigator 
  • Has branches in other countries

Cons

  • Hit or miss in timely communication

Zele Investigators Thailand is a private investigator agency in Bangkok, offering services throughout the country.

We like that Zele can help you in many ways. 

They can find a missing person or do background checks for your Thai or expat lover. Zele can also assist in serving legal documents on your behalf (especially if you’re in a foreign country).

They can also do surveillance on your spouse or people you suspect they’re in relations with. 

Zele has an excellent local intelligence network, which informs all their investigations. It has branches in the Philippines, Vietnam, Indonesia, Malaysia, and Cambodia.

We like that its management, investigators, and staff are also highly qualified for the job. They have police or military backgrounds. 

We can’t comment about the price of their services because it usually depends on the nature of the case. Also, it’s best not to scrimp on your budget than end up with an investigator who can’t provide the needed results.

In fact, most of Zele’s past customers are satisfied with the service they got from the private investigator, regardless of the price. Some customers also commended Zele’s professionalism and timely delivery of results.

However, some customers are unhappy with their communication with Zele. We hope they’ll improve on getting their clients in the loop with their cases.

Send an email or call Zele if you need private investigator services.

2. Bangkok Private Investigators

Bangkok Private Investigators Homepage

Services: Surveillance, Background Checks, Corporate Checks, Insurance Fraud Investigations, Secret Shopper, and Finding Missing Person

Website: https://bangkokinvestigators.com/ 

Address: UnionSPACE, 30 Soi Sukhumvit 61, Khlong Tan Nuea, Maha Nakhon, Bangkok 10110

Contact Details: Tel: (+66) 02-03-0604

Email: info@investigators.asia 

Operating Hours: Open 24 hours; Office visit by appointment

Google Reviews score5/5
Facebook reviews score 5/5
Total reviews4/5
Score consistency 5/5
Credibility5/5
Professionalism5/5
Ease of Communication5/5

Pros

  • Credible private investigator 
  • Has proven track record/case studies
  • Fast service
  • Clear and timely communication with clients
  • Has an excellent grasp of the English language
  • Does not blur surveillance photos
  • Many payment methods including PayPal

Cons

  • Can refuse cases if they involve governmental or religious persons of interest

Bangkok Private Investigators (Bangkok PI) is an agency specialising in discreet investigations. They’re considered one of the best private investigators in Thailand, which is reassuring for any client. 

Their customers laud their professionalism and outstanding quality of service that produces results. Foreign clients love that Bangkok PI writes reports in good English. 

One of their services that stood out for us is their secret shopper service. This service helps business owners know how their store staff typically treat customers, offering them valuable intel that can be used for developing upskilling workshops and making staff decisions.

You can also pay them by cash, bank transfer, or PayPal. This is very convenient if you’re getting their services from abroad.

They adhere to the law, but not to the point that it may hamper the quality of their output. They don’t blur the face of the other party for infidelity investigations.

We also love that Bangkok PI has sample cases for prospective clients to see on their website. Most of these refer to excerpts from credible news sites, proving their truthfulness.

However, Bangkok PI can’t investigate everything or everyone under the sun. They reject cases about the police, military officers, politicians, and religious entities. 

If you want to get their services, their website is the best way to connect with them.

3. Lucky Lion Pride Co., Ltd. (Thailand Private Investigations)

Lucky Lion Pride Co., Ltd. (Thailand Private Investigations) Homepage

Services: Surveillance, Background Checks, Corporate Checks, Insurance Fraud Investigations, Finding Missing Person, Security Camera System Installation, DNA Test, and Court Papers Service

Website: https://thailandpi.com/

Address: Ploymitr Office Building, Floor 7, 81 Sukhumvit soi 2, Klongtoey, Klongtoey Bangkok 10110

Contact Details: Tel: (+66) 02-255-0620

Mobile: (+66) 80-062-4243 (Native English)

Line: @alphalion

Email: inbox@thailandpi.com 

Operating Hours: Open 24 hours; Office visit by appointment

Google Reviews score5/5
Facebook reviews score 5/5
Total reviews3/5
Score consistency 5/5
Credibility5/5
Professionalism5/5
Ease of Communication5/5

Pros

  • Credible private investigator 
  • Has proven track record/case studies
  • Clear and timely communication with clients
  • Has an excellent grasp of the English language
  • Promises a cost-efficient fee for service

Cons

  • Won’t reveal the identity of a competing lover or third party if it’s a famous or influential personality
  • Prefers to deal with minor cases

This entry’s title might be confusing, but here’s why. Thailand Private Investigators (PI) is a subsidiary of Lucky Lion Pride Co. Ltd., a company owned and operated by an American-Thai couple, Mr. Mark and Ms. Kanta.

Lucky Lion Pride Co. has many ventures. These include a property brokerage, a diagnostic clinic, a DNA testing facility, a language translation service, and Thailand PI itself. 

Thailand PI has been in business since 1997, so they are one of the older names in the PI business. They take pride in their small team composed of their most trusted persons.

Their past customers laud Thailand PI for their outstanding services. Their clients love their agency’s commitment to give the best results for cases (whether good or bad) in the most discreet and timely manner, especially in Thai lover surveillance and background checks. 

Their website has case studies showcasing their endeavours throughout the years. This is available for prospective clients to see and judge themselves, which we like.

Private investigation costs are on a per-case basis. But most of their clients agree that they got their money’s worth for the results they got from Thailand PI. 

No matter how great an agency is, there are always a couple of cons. First, Thailand PI only takes small cases (none of those involving criminal gangs, etc.).

Second, they tend to practice discretion for sensitive cases. They blur the face of the “third party” in infidelity investigations if they are famous or influential. 

We understand that they want to be careful. But you might need to reconsider hiring Thailand PI if you plan to go to court.

4. Detective Narong

Detective Narong Homepage

Services: Surveillance, Background Checks, Corporate Checks, Finding Missing Person, Corruption and Fraud Investigation, Tracking of Persons With Arrest Warrant

Website: https://thai-detective.com/

Address: Sutthisan Winitchai Rd, Din Daeng, Bangkok 10400

Contact Details: Tel: (+66) 098-249-9939

Line: @thaidetective

Email: thaidetective168@gmail.com 

Operating Hours: Monday to Sunday, 8:00 AM – 10:00 PM; visit by appointment

Google Reviews score5/5
Facebook reviews score 4.7/5
Total reviews2/5
Score consistency 5/5
Credibility4/5
Professionalism5/5
Ease of Communication5/5

Pros

  • High-quality service
  • Affordable
  • Clear and timely communication with clients
  • Investigates and tracks persons with arrest warrant

Cons

  • Has definite office hours
  • Office visit by appointment only

Detective Narong has been in the private investigator industry for over 20 years. Their office is in Bangkok, easily accessible in the Din Daeng District.

We were a bit disappointed to find that their office operates only from 8:00 AM to 10:00 PM daily, unlike their competitors, which offer 24/7 service. Visiting their office is also by appointment only.

Its customers agree that Detective Narong provides quick and professional investigator services. You can ask them to investigate a lover for infidelity or find missing people. 

They can also do surveillance operations to catch corporate corruption or fraud.

It’s also different from its competitors that don’t want involvement with criminal investigations. Detective Narong tracks persons with an active arrest warrant, which is a plus.

Another good thing about Detective Narong is that hiring them will not empty your wallet. Most of their customers praise their affordable rates and effective communication with clients.

These qualities make Detective Narong’s customers recommend the agency to their friends and colleagues by word of mouth. We like this too since we can be more sure of their credibility.

If you need a detective or private investigator service, then Detective Narong might be the one for you. Just contact them via phone or Line for inquiries.

5. Hanuman Guardian Solutions

Services: Surveillance, Background Checks, Corporate Checks, Insurance Fraud Investigations, Secret Shopper, and Finding Missing Person

Website: https://www.hanumanguardian.com/

Address: PO Box 29 Phasi Charoen Bangkok 10160

Contact Details: info@hanumanguardian.com

Operating Hours: Open 24 hours; Office visit by appointment 

Google Reviews score5/5
Facebook reviews score 4.5/5
Total reviews4.5/5
Score consistency 5/5
Credibility4/5
Professionalism5/5
Ease of Communication5/5

Pros

  • Hanuman Guardian Solutions swiftly manages investigations
  • Their reports are detailed and well-crafted
  • They offer top-tier services at reasonable prices
  • The team is friendly and genuinely cares about clients

Cons

  • Busy during peak days

Our experience with Hanuman Guardian Solutions has been nothing short of impressive. As a private investigators company, they offer a blend of services that combines efficiency, quality, and cost-effectiveness into a formidable package.

In our quest for truth and answers, Hanuman Guardian Solutions proved themselves to be an unwavering guardian of our interests. Their commitment to confidentiality and their ability to adapt to each case’s unique requirements displayed their professionalism and dedication.

Efficiency is the name of the game when it comes to private investigations, and Hanuman Guardian Solutions plays it masterfully. Our cases were handled with the precision of a well-honed sword, swiftly cutting through the tangled web of information to uncover the truth.

Quality is often a rare gem in this industry, but Hanuman Guardian Solutions certainly possesses it in abundance. From thorough background checks to meticulous surveillance, their work left no room for doubt. We found their reports to be not just informative, but also an insightful piece of craftsmanship.

What sets Hanuman Guardian Solutions apart is their ability to deliver this exceptional quality without breaking the bank. In a world where private investigators often charge exorbitant fees, Hanuman Guardian Solutions offers a refreshing combination of top-tier service and cost-effectiveness.

The team at Hanuman Guardian Solutions doesn’t just uncover facts; they excel in going the extra mile to ensure their clients are well-informed and satisfied. Their friendly yet professional approach made us feel like we were in the capable hands of experts who genuinely cared about our concerns.

However, they can get busy during peak seasons. We suggest booking them ahead of time.

6. Thailand Private Investigator Group

Thailand Private Investigator Group Homepage

Services: Corporate Investigation, Due Diligence, Infidelity Investigation, Missing Person Investigation, Background Check, Pre-Marital Check, Criminal Record Check 

Website: https://thailandinvestigators.com/

Contact Details: Tel: (+66) 95-292-4830

Operating Hours: Open 24 hours

Google Reviews score5/5
Facebook reviews score 5/5
Total reviews1/5
Score consistency 5/5
Credibility3/5
Professionalism3/5
Ease of Communication3/5

Pros

  • High-quality service
  • Clear and timely communication with clients

Cons

  • Very secretive organisation
  • Does not investigate uniformed personnel, public figures, or crimes

Thailand Private Investigator Group (TPIG) is a private investigator agency located in Bangkok. However, we don’t know exactly where their office is since they have minimal information on the internet.

This secrecy also trickles down to other aspects of their operations. 

Their website lists a couple of case studies for prospective clients. But unlike other PI websites we’ve seen, TPIG does not have external references like news articles to back these cases up.

Since the PI industry is secretive, this lack of identifying information can be good or bad. We’d like to think that they are just safeguarding the true identities of their clients.

Despite this secrecy, TPIG customers receive excellent services. We like that TPIG immediately gets in touch once a client makes an initial inquiry, and dispatches agents after a case briefing.

TPIG goes above and beyond what a case asks for. They promise their customers personalised solutions for their matters, which is a great touch to offer in this industry.

However, their service also has limitations.  

They won’t take on cases involving the military or police officers. They also stay away from cases with public figures, politicians, or any crime. 

You may contact TPIG via their website’s contact form with your case details. You may also reach them by phone.

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