Due Diligence

In-depth investigations help manage risk of potential investment, protect your business interests, and reputation.
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Expert Insight for Your Biggest Decisions

As the investigative arm of Sterling, Sterling Diligence is a leading corporate due diligence, executive screening, and global investigations firm. Ethical, discreet, and trusted by Fortune Global 500 companies, we empower our clients with expert business intelligence to manage their reputational and operational risks.

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Why Sterling Diligence?

Sterling Diligence, in association with Bishops® and its 125-year history, is the longest-standing, trusted due diligence partner providing due diligence investigative reporting for individuals and businesses.

Investigators conduct research, make phone calls, retrieve necessary documentation, and analyse each piece of relevant information throughout the investigation. Our investigators have many decades of experience, and include licensed private investigators, attorneys, and individuals with former government, military, and law enforcement experience.

Sterling Diligence has robust global capabilities and can conduct investigations in nearly every country in the world. Our global network of field experts are licensed and certified with a breadth and depth of investigative experience you can rely on.

Our in-depth investigations are thorough and insightful, resulting in safer, smarter business decisions. We offer fully customisable investigations and dedicated customer support. Our solutions are tailored based on your business and budgetary needs and requirements.

Make the Right Decisions with Expert Insight

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    Experienced investigators and Diligence team members
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Our Focus Areas

Pre-Investment Due Diligence

Move forward with confidence in your new investments, acquisitions, and ventures. Our due diligence investigations are customised to your needs and uncover crucial information for your next move.

Executive Investigations

Our unparalleled research methodology and robust pre-employment investigations reveal a 360-degree picture of an executive candidate’s background and credentials.


Sterling is a leader in investigative due diligence and consulting services for Residency and Citizenship-by-Investment programs. Governments and their agents trust our global investigative expertise and strict attention to detail.

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Why is Due Diligence Important?

Risk Mitigation

Provide open-source background investigations for clients to mitigate risk for potential investments.
Due diligence investigations surface information that the subjects may not have volunteered.

Multi-Level Investigative Approach

Each investigation provides in-depth information across multiple sources:
Public or primary records, databases, and press and media sources that are then reviewed for accuracy and completeness.
As a senior ODD Officer employed by a European-based institutional allocator, I have been partnering more than a decade with Sterling Diligence to my full satisfaction. The background check reports are deemed altogether, very synthetical and comprehensive, thus enabling my firm’s ODD Team to fulfill its institutional requirements to the highest standards."

Anonymous firm

We have been using Sterling Diligence for over a decade of our business diligence needs. They have always provided detailed, well-researched reports within the requested timeframe and have been receptive to our needs. The team puts client service ahead, and we are comfortable working team to team with Sterling."

Anonymous firm

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