Oldstone & Green Limited ("O & G") is a leading Nigeria based, Africa focused, business intelligence and corporate investigations firm. We provide pure, locally sourced intelligence and actionable insights across sub-Saharan Africa.

Our clients include many of the world’s leading corporate entities, financial institution, law firms, risk consultancies and NGO's. We have a network of local consultants and experts on ground, offering confidential and bespoke solutions to complex challenges.

Our strong industry expertise, research know-how and keen local knowledge of business, politics and markets makes us the preferred firm for global corporates seeking to understand, compete and grow in sub-Saharan Africa.

Our Guiding Principle

It is of the highest importance in the art of detection to be able to recognize, out of a number of facts, which are incidental and which vital. . (Sherlock Holmes)

  • Investigations
  • Facts
  • Insights
  • Intelligence
  • Discretion

Our Business Objectives

Keep the client ahead of competition!!!

Our Vision

... to become the leading intelligence consultancy in
Nigeria and sub-Saharan Africa.

Our Mission

..to continually add value to our clients' businesses
through our bespoke intelligence solutions.

Why Choose Us?

  • Locally Aware, Globally Coherent
  • A one stop shop for intelligence
  • Cost effectiveness and best possible prices
  • Deep knowledge of core competence
  • Greater control of output
  • Greater efficiency with timing
  • Vast base of experienced professionals