About Private Investigation Agency Greece

Professionalism in Every Investigation

Absolute Discretion & Confidentiality

Collaboration with Specialist Professionals

Advanced Investigative Technology

Private Investigation Agency in Greece

Nikos Pelekasis & Associates is a Private Investigation Agency in Greece with more than 30 years of experience in private, corporate and specialised investigations. Based in Athens and operating throughout Greece, our agency provides discreet and professional investigative services to private individuals, businesses, law firms and international clients.

Since the beginning of our activity, our approach has been based on three fundamental principles: confidentiality, professionalism and reliable investigative information.

Private investigation has changed considerably over the past three decades. Traditional field investigation and surveillance remain important, but modern cases increasingly involve smartphones, computers, social media, digital evidence and sophisticated electronic technology.

For this reason, our investigative approach combines experience in traditional private investigation with modern digital and technical investigative capabilities.

More Than 30 Years of Private Investigation Experience

Experience in private investigation is not simply a matter of how long an agency has existed.

Every investigation presents different circumstances, personalities, risks and limitations. Over more than three decades, Nikos Pelekasis & Associates has handled a wide range of private, family, corporate and professional cases.

This experience allows us to evaluate each new assignment individually and determine which investigative methods are appropriate for the circumstances.

We do not approach every investigation with the same methodology.

Depending on the case, an investigation may require:

  • Field investigation
  • Surveillance
  • Background research
  • Person tracing
  • Evidence collection
  • Open-Source Intelligence (OSINT)
  • Digital Forensics
  • Social media investigation
  • Technical examination
  • TSCM counter-surveillance
  • Other specialised investigative methods

The objective determines the methodology — not the other way around.

Private Investigators in Athens and Throughout Greece

Our agency is based in Athens and undertakes investigations throughout Attica and Greece, depending on the requirements of each assignment.

Our operational coverage can include:

  • Athens
  • Piraeus
  • Attica
  • Thessaloniki
  • Mainland Greece
  • Greek islands
  • Other locations throughout the country

We also regularly communicate with international clients, companies and law firms requiring investigative assistance in Greece.

Initial case assessment can be conducted remotely, allowing international clients to discuss the circumstances and objectives of an investigation before travelling to Greece or commissioning local investigative work.

Private Investigation Services

Our agency provides a broad range of private detective services in Greece for individuals, families and professionals.

Personal and family investigations can include matters involving:

  • Infidelity
  • Family disputes
  • Child-related concerns
  • Person tracing
  • Theft
  • Evidence collection
  • Social media incidents
  • Other legitimate private matters

Every case is approached discreetly and according to its individual circumstances.

Our purpose is not to confirm assumptions or suspicions at any cost. It is to establish what can actually be supported by the information and evidence available.

Corporate & Professional Investigations

Businesses and professional organisations often face investigative challenges that require a different approach from ordinary private cases.

Our corporate investigation services can assist businesses, lawyers and other professionals with matters involving:

  • Corporate fraud
  • Employee theft
  • Employee misconduct
  • Due diligence
  • Business background investigations
  • Debtor tracing
  • Confidential information concerns
  • Digital investigations
  • Evidence collection
  • Corporate security concerns
  • Other legitimate commercial investigations

Corporate assignments frequently involve sensitive commercial information and require particular attention to confidentiality.

Where lawyers, accountants, technical experts or other professionals are involved, our investigative work can be coordinated with them according to the requirements of the case.

Digital Forensics & Modern Investigations

Modern investigations increasingly involve electronic evidence.

Smartphones, computers and digital storage devices can contain information relevant to private, corporate and legal matters.

Our Digital Forensics capabilities can assist in the examination of lawfully accessible digital devices and information.

Depending on the circumstances, an investigation may involve:

  • Smartphones
  • Computers
  • Storage devices
  • Digital files
  • Application information
  • Available metadata
  • Deleted information where technically recoverable
  • Other relevant digital traces

Digital forensic examination is not the same as unauthorised access to another person’s device or account.

Before an examination is undertaken, the lawful authority and legitimate purpose of the investigation must be established.

Mobile Spyware & Digital Security Investigations

Concerns regarding unauthorised monitoring of smartphones have become increasingly common.

Where there are legitimate technical indications that a device may have been compromised, our Mobile Spyware Detection services can examine relevant indicators on authorised devices.

Depending on the case, examination may involve suspicious applications, configurations, network behaviour and other technical information.

We do not assume that unusual smartphone behaviour automatically indicates spyware.

Technical conclusions should be based on evidence identified during examination.

TSCM & Bug Sweep Services

Electronic surveillance concerns may involve homes, offices, meeting rooms or vehicles.

Our Technical Surveillance Counter-Measures (TSCM) services are designed to examine environments for indications of unauthorised electronic surveillance.

Depending on the circumstances, inspections may involve specialised equipment and multiple technical methods.

TSCM services can be relevant to:

  • Private individuals
  • Businesses
  • Executives
  • Lawyers
  • Corporate offices
  • Sensitive meetings
  • Vehicles
  • Other environments where confidential information may be discussed

No single detector or technique can identify every possible surveillance device, which is why professional TSCM requires a systematic approach.

Social Media & Online Investigations

A significant part of modern investigative activity now takes place online.

Social media can provide valuable information, but it can also be used for:

  • Fake profiles
  • Impersonation
  • Harassment
  • Threats
  • Fraud
  • Scams
  • Other abusive activities

Our Social Media Investigations combine publicly accessible information, OSINT and other lawful investigative methods to examine legitimate concerns involving online activity.

Information discovered online must be carefully evaluated and cross-referenced.

A photograph, username or profile similarity alone should not automatically be treated as proof of identity.

Evidence-Based Investigation

One of the most important principles of professional investigation is maintaining a distinction between suspicion and evidence.

A client may have strong reasons for believing that something has occurred.

However, the role of an investigator is not simply to confirm that belief.

Our objective is to establish:

  • What can be verified
  • What evidence exists
  • What remains uncertain
  • What cannot be technically or factually established

This approach is particularly important where the findings may influence important personal, commercial or legal decisions.

Professional Investigation Reports

Depending on the nature of the assignment, findings may be documented in a professional investigative report.

A report can include:

  • Purpose of the investigation
  • Investigative methodology
  • Relevant observations
  • Photographic documentation
  • Digital findings
  • Timelines
  • Public-source information
  • Supporting evidence
  • Relevant limitations

Reports should clearly distinguish between verified facts, investigative observations and information that cannot be independently confirmed.

Where an investigation relates to legal proceedings, coordination with the client’s lawyer may help ensure that the investigation remains focused on information relevant to the case.

Confidentiality & Discretion

Clients frequently contact a private investigation agency during extremely sensitive personal or professional situations.

They may be dealing with a family issue, suspected infidelity, corporate fraud, theft, harassment, litigation or concerns regarding electronic surveillance.

For this reason, confidentiality is fundamental to our work.

Information concerning:

  • The identity of the client
  • The purpose of the investigation
  • Individuals involved
  • Investigative activity
  • Evidence obtained
  • Findings of the investigation

is handled with discretion and according to applicable legal requirements.

Legal & Professional Standards

Private investigators do not have the same powers as police, prosecutors or judicial authorities.

A legitimate investigation therefore requires an understanding of what information can lawfully be obtained and which methods are appropriate.

Our investigations do not include unauthorised:

  • Hacking of accounts
  • Access to private communications
  • Access to confidential databases
  • Interception of communications
  • Entry into private property
  • Acquisition of protected financial information

Where information requires judicial or official authority, the appropriate legal process must be followed.

This distinction is particularly important in modern investigations because technical capability does not automatically create legal authority.

Our investigative activities also take into account applicable European data protection requirements when personal data is processed.

Working With Lawyers

We can provide investigative assistance to law firms and legal professionals requiring factual research, evidence collection or specialised investigative support in Greece.

Depending on the matter, assistance may include:

  • Person tracing
  • Witness identification
  • Evidence collection
  • Background research
  • Corporate investigations
  • Digital investigations
  • Debtor tracing
  • Verification of information
  • Other clearly defined investigative assignments

When litigation is involved, cooperation with the lawyer can help define the investigative objective and determine which information may be relevant to the proceedings.

International Clients & Investigations in Greece

International clients may encounter difficulties when attempting to conduct an investigation in another country.

Language, geography, local procedures and access to reliable local information can make even relatively straightforward enquiries difficult.

Nikos Pelekasis & Associates assists international:

  • Private clients
  • Law firms
  • Companies
  • Investigation agencies
  • Other professional organisations

with legitimate investigative matters connected to Greece.

Communication can be conducted in English, and the scope of an assignment can be established remotely before investigative activity begins.

Combining Experience With Modern Technology

Private investigation has evolved considerably during the last 30 years.

The investigator of today must understand both traditional investigative methodology and the role of modern technology.

A single case can involve physical surveillance, social media, smartphones, digital files, public records and electronic evidence simultaneously.

Our approach therefore combines established investigative experience with modern capabilities such as:

Digital Forensics • TSCM • OSINT • Mobile Spyware Detection • Social Media Investigation • Data Recovery

Technology is a tool within an investigation — not a substitute for investigative judgement.

Why Choose Nikos Pelekasis & Associates?

More Than Three Decades of Experience

Our agency brings more than 30 years of experience in private and professional investigations.

Private, Corporate & Digital Capabilities

We handle personal investigations as well as complex corporate and digital assignments, allowing different investigative methods to be combined when necessary.

Confidentiality

Sensitive information is handled discreetly and according to the defined purpose of the investigation.

Evidence-Based Approach

Our objective is to establish facts rather than simply confirm suspicions.

Modern Investigative Technology

Where appropriate, investigations can incorporate Digital Forensics, TSCM, OSINT, data recovery and other modern investigative techniques.

Nationwide Coverage

We undertake investigations in Athens, Piraeus, Attica and throughout Greece, depending on the requirements of the case.

International Assistance

We assist foreign individuals, companies, law firms and professional investigation agencies with cases connected to Greece.

Our Approach to Every Investigation

Before beginning an assignment, we aim to understand three fundamental points:

What does the client need to establish?

What information is currently available?

Which investigative methods can realistically and lawfully provide additional information?

Once these questions are answered, an investigative strategy can be developed according to the circumstances.

Some cases can be resolved relatively quickly.

Others require a combination of different investigative methods over a longer period.

Clients should receive a realistic assessment of what an investigation can and cannot achieve before unnecessary resources are committed.

Frequently Asked Questions

How long has Nikos Pelekasis & Associates been operating?

Our agency has more than 30 years of experience in private and professional investigations in Greece.

Where is your private investigation agency based?

We are based in Athens and undertake investigations in Piraeus, Attica and throughout Greece depending on the requirements of each assignment.

Do you work with international clients?

Yes. We assist international individuals, law firms, companies and investigation agencies with legitimate cases connected to Greece.

Do you provide corporate investigations?

Yes. Our services include corporate fraud investigations, employee-related investigations, due diligence, debtor tracing, evidence collection and other professional investigative services.

Do you provide Digital Forensics?

Yes. Where lawful authority exists to examine the relevant device, Digital Forensics can form part of a private, corporate or legal investigation.

Do you provide TSCM bug sweeps?

Yes. We provide TSCM inspections for homes, offices, meeting areas, vehicles and other appropriate environments where there is a legitimate concern regarding unauthorised surveillance.

Are investigations confidential?

Confidentiality and discretion are fundamental principles of our work. Client information and investigative findings are handled according to the circumstances and applicable legal requirements.

Can I contact you from outside Greece?

Yes. International clients can contact our agency remotely to discuss an investigation connected to Greece before an assignment begins.

Contact Nikos Pelekasis & Associates

If you require a professional Private Investigation Agency in Greece, contact Nikos Pelekasis & Associates for a confidential initial assessment of your case.

We provide investigative services to private individuals, families, businesses, law firms and international clients requiring reliable information and professional investigative support in Greece.

Whether the matter involves a private investigation, corporate concern, digital evidence, suspected surveillance or another legitimate investigative requirement, the first step is to establish the objective and determine which investigative methods are appropriate.

With more than 30 years of experience, our approach remains based on the principles that have defined our work throughout our activity:

Discretion. Confidentiality. Experience. Evidence.

Nikos Pelekasis & Associates – Private Investigation Agency Greece
Athens | Piraeus | Nationwide Investigations

Athens Office:
39 Stadiou Street, Athens, 10559

Piraeus Office:
36 Iroon Polytechniou Street, entrance from 8 Dragatsi Street, Piraeus Attica, 185310