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The next generation of global investigations and business intelligence.
Who we are
We are a global due diligence, investigations, and business intelligence firm that helps clients identify and mitigate risk, shape strategy, and achieve success.
investigative interviews completed globally
countries where we’ve worked; >30 on the ground
AUM by investor clients, including serving one-third of PEI Top 25 PE firms
of AmLaw 50 served; 40% of AmLaw 100
organic growth in last five years
employee-owned and independent
Testimonials
Quinlan's reports are very detailed and they are available on demand. Their client care is superb. You just know you are in good hands.
Chambers & Partners
Investigative Due Diligence - Global-wide - 2025
Quinlan is extraordinarily efficient in its work and delivers exactly what it promises.
Chambers & Partners
Business Intelligence & Investigations - Litigation Support - 2025
I am a big fan of the Quinlan group, I think it is absolutely fantastic. It is responsive, technical and very efficient.
Chambers & Partners
Business Intelligence & Investigations - Litigation Support - 2025
Quinlan Partners is very receptive to the specific needs of any ask and is creative in coming up with a tailored solutions that are commercially reasonable in complex situations.
Chambers & Partners
Investigative Due Diligence - Global-wide - 2025
The depth of the quality of the research they were able to do was exceptional. It goes far beyond a background check.
Chambers & Partners
Investigative Due Diligence - Global-wide - 2024
Their offering is bespoke and focused on quality rather than volume.
Chambers & Partners
Business Intelligence & Investigations - Litigation Support - 2024
Quinlan is efficient, fast and reliable. They jump in and get to work quickly. The team is very responsive and produces exceptional work product.
Chambers & Partners
Investigative Due Diligence - Global-wide - 2024
They have done a great job for us and really understand our pace and sensitivity. They seem to have great commercial judgment. They are able to understand the dynamics of a business and situation.
Chambers & Partners
Investigative Due Diligence - Global-wide - 2024
Their work has been incredibly valuable and provided insight for our clients on issues involving transactions and potential hires of key principals.
Chambers & Partners
Business Intelligence & Investigations - Litigation Support - 2024