Professional OSINT and digital investigation services for clients in Nigeria and the diaspora — UK, USA, Canada, and beyond. Fully online. Legally conducted. Court-ready reports delivered discreetly to your inbox.
Operating under Nigerian law, UK GDPR, and US/Canadian data standards depending on client location.
Open-source intelligence only. No account access. No communications interception.
Timestamped, court-ready PDF reports with full source documentation.
Your identity and case details are never shared with third parties — ever.
Our most requested service. We build a complete digital picture of your partner's online activity — conducted legally using only public data, packaged as evidence you can act on. Available to clients in Nigeria, the UK, USA, Canada, and worldwide.
From romance scams to crypto fraud to dark web data exposure — fully remote investigations delivered as structured evidence reports. Serving Nigeria, UK, USA, Canada, and diaspora clients globally.
For individuals and businesses who need documented evidence of financial deception, property fraud, or reputational damage. We work with clients in Nigeria and the diaspora — including those investing in Nigerian assets from the UK, USA, and Canada.
Conducted in Nigeria by our certified partner screening firm using professional-grade digital equipment. Results are personal truth-verification tools — not court-admissible evidence. Written informed consent is required from the subject before any examination is scheduled.
Every case follows the same five-step process — fully remote, fully confidential. No in-person meetings required, wherever in the world you are.
Greyline Investigations is a professional OSINT and digital intelligence agency serving clients in Nigeria and the global diaspora — including the UK, USA, Canada, and Australia. We specialise in investigations conducted entirely online, delivering the same quality of evidence that once required physical surveillance, faster and at a fraction of the cost.
We operate strictly within the laws of the Federal Republic of Nigeria, including the Nigeria Data Protection Act 2023 and the Cybercrimes Act 2015. Every report is prepared to the standard required for court submission.
Based in Lagos with investigators available across Abuja, Port Harcourt, and Kano. We operate fully remotely for all international and diaspora cases — UK clients can communicate via standard GMT hours, US and Canadian clients via flexible scheduling.
Start a Confidential InquiryAll inquiries are strictly confidential. No obligation to proceed after your initial consultation.
Use our secure intake form to submit your case details. Fully encrypted. Takes less than 5 minutes.