What Quinlan Partners does

Quinlan Partners is a global due diligence, investigations, and business intelligence firm founded in 2011 by Paul Quinlan and headquartered in New York. The firm operates as a professional services company delivering three interconnected service lines: due diligence and business intelligence (pre-investment and pre-relationship due diligence, board and C-suite vetting, business and market intelligence, strategic intelligence and advisory, third-party vetting and compliance, ESG/CSR assessments); litigation support and corporate disputes (civil litigation support, white collar defense, asset tracing, proxy contests and activist campaigns, international arbitration); and internal investigations (anti-corruption, fraud, workplace misconduct). Its investigative methodology combines open-source intelligence (OSINT), human source interviews, public records research, and digital investigation techniques, delivered by a team composed of former investigative journalists, corporate intelligence professionals, attorneys, and digital investigators.

The firm serves leading law firms, private equity firms, hedge funds, corporations, and financial institutions, with disclosed penetration of 100% of AmLaw 50, 40% of AmLaw 100, and one-third of PEI Top 25 PE firms. Its operational footprint includes eight US offices (New York, Washington DC, Birmingham, Charleston, Chicago, Seattle, Austin, Minneapolis) and on-the-ground investigative presence in 30+ countries, with over 3,000 investigative interviews completed globally. The firm is 100% employee-owned and independent, with no parent entity or external institutional investment. AI and OSINT tools are used to augment research and process automation but the core methodology remains human-source-driven.

Quinlan's go-to-market relies on partner-led enterprise field sales, Chambers and Partners and Legal 500 rankings as primary credibility signals, conference presence at industry events (ABA White Collar Crime, IBA, SIFMA, Tulane, OffshoreAlert, Bloomberg Activism Forum), and thought leadership published in outlets such as The New York Law Journal. The firm has received consistent year-over-year recognition from Chambers and Partners across both Litigation Support and Crisis and Risk Management guides from 2024 through 2026, and won Private Equity Wire's Strategic Intelligence Provider of the Year 2025.

Name

Quinlan Partners

Legal name

Quinlan Partners LLC

Website

https://quinlanpartners.com

Company type

Private

Founded year

2011

Operating status

Operating

Short description

Quinlan Partners is a global due diligence, investigations, and business intelligence firm founded in 2011, serving leading law firms, private equity firms, hedge funds, corporations, and financial institutions through partner-led investigative engagements from eight US offices.

Ownership category

akta.pro rank

Product category

Corporate Investigations & Due Diligence

NAICS

Management Consulting Services (54161), Management, Scientific, and Technical Consulting Services (5416)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Strategic Partnerships, Alliances & JVs Advisory (BPAHADAI)

Keywords

• Corporate due diligence
• Investigative due diligence
• Business intelligence services
• Litigation support services
• Internal investigations

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Professional Services – Investigations and Due Diligence: The firm generates revenue through bespoke investigative and due diligence engagements billed to leading law firms, investment firms, corporations, and financial institutions. Engagements are project-based and likely quote-driven, with recurring client relationships driven by ongoing needs across due diligence, litigation support, and internal investigations.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Quinlan Partners is a global investigations and business intelligence firm that delivers bespoke due diligence, litigation support, and internal investigation services. The firm combines open-source intelligence (OSINT), human-source interviews, public records research, and digital investigation techniques—delivered by former investigative journalists, attorneys, and corporate intelligence professionals—to leading law firms, private equity firms, hedge funds, corporations, and financial institutions.

Product overview

Quinlan Partners is a global investigations, due diligence, and business intelligence firm that operates as a professional services company rather than a software product company. The firm offers three interconnected core service lines: (1) Due Diligence & Business Intelligence, which provides pre-investment and pre-relationship due diligence, board and C-suite vetting, business and market intelligence, strategic advisory, third-party vetting, and ESG compliance assessments; (2) Litigation Support & Corporate Disputes, encompassing civil litigation support, white collar defense, asset tracing, proxy contests and activist campaigns, and international arbitration; and (3) Internal Investigations, including anti-corruption, fraud, and workplace misconduct investigations. The firm's team of former investigative journalists, corporate intelligence professionals, attorneys, and digital investigators delivers actionable intelligence and evidence gathering for clients including leading law firms, investment firms, corporations, and financial institutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Due Diligence & Business Intelligence Comprehensive due diligence and business intelligence services including pre-investment and pre-relationship due diligence, board and C-suite vetting, business and market intelligence, strategic intelligence and advisory, third-party vetting and compliance, and ESG/CSR assessments. Targeted at private equity firms, hedge funds, and institutional investors evaluating investment targets, portfolio companies, or management.
• Litigation Support & Corporate Disputes Investigative support for legal matters encompassing civil litigation support, white collar defense, asset tracing, proxy contests and activist campaigns, and international arbitration. Designed for leading law firms and legal counsel requiring independent investigative intelligence.
• Internal Investigations Corporate internal investigation services covering anti-corruption investigations, fraud investigations, and workplace misconduct investigations. Targeted at corporations and financial institutions facing compliance, ethics, and misconduct issues.

Quantifiable outcome

• Nearly five times the average number of market mentions during Chambers' research process, reflecting exceptional client visibility and reputation.
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature1 record

Partnerships

One partnership is on record.

• Arnold & PorterminorGTM or Marketing Partner · 21 June 2022Christopher Jaros, Partner at Quinlan Partners, was featured as a guest on Arnold & Porter's TMT Time Podcast, discussing his path from BigLaw into corporate investigations, whether human intelligence works, and how he helps law firms diligence witnesses for deposition and trial. The appearance serves as a cross-promotional marketing channel between the two firms.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Pangea Risk Group: Pangea Risk Group is a specialist investigations and intelligence firm with comparable offerings in cross-border due diligence, asset tracing, and litigation support. As a smaller, specialized competitor, Pangea targets the same client segments as Quinlan in private equity and complex litigation.
• StoneTurn: StoneTurn is a forensic advisory firm that competes with Quinlan in investigations, integrity due diligence, and expert testimony for law firms, corporates, and regulators. StoneTurn has a stronger forensic accounting emphasis but overlaps on the cross-border investigations and asset recovery mandates Quinlan serves.

Broad incumbents

• Berkeley Research Group: BRG's Investigations and Strategic Intelligence practice competes directly with Quinlan on complex internal investigations, FCPA/sanctions work, and litigation support. As a larger expert-driven consultancy, BRG competes on case scale and technical depth across practice areas that overlap with Quinlan's core services.
• Duff & Phelps (Kroll Government Affairs): Duff & Phelps, now part of Kroll, operates a global investigations and disputes practice that overlaps with Quinlan's pre-investment diligence, asset tracing, and disputes support offerings. As a broad incumbent, it competes primarily on enterprise scale and multi-disciplinary bundling.
• FTI Consulting: FTI's Strategic Communications and Forensic & Litigation Consulting segments overlap directly with Quinlan's business intelligence, investigations, and litigation support services. As a much larger public consultancy, FTI covers Quinlan's market from a broader portfolio angle, competing primarily on enterprise scale and cross-sell.

Direct peers

• Control Risks: Control Risks is a global risk consultancy that competes directly with Quinlan in investigative due diligence, political risk, and integrity due diligence for PE and corporate clients. Both firms are built on expert-led consulting models with deep in-country source networks, though Control Risks operates at significantly larger scale.
• Mintz Group: Mintz Group is one of the most direct competitors in the investigative due diligence and business intelligence space, serving AmLaw 100 and global PE firms with a similar partner-led, ex-journalist talent model. The two firms are frequently compared in Chambers rankings in the same investigative due diligence practice area.
• Guidepost Solutions: Guidepost Solutions provides global investigations, due diligence, and compliance consulting across similar client segments to Quinlan, including litigation support, internal investigations, and third-party vetting. Both firms compete in the mid-market investigations space with comparable service offerings.
• Nardello & Co. Nardello & Co. is a closely comparable specialist firm offering global investigations, due diligence, and intelligence services to law firms, corporations, and financial institutions. The firm is co-headed by former federal prosecutors and competes head-to-head with Quinlan in Chambers' Business Intelligence & Investigations category.
• Kroll: Kroll is the closest direct competitor to Quinlan Partners in investigative due diligence, business intelligence, and litigation support. Both firms serve PE firms, law firms, and corporations with pre-investment diligence, asset tracing, and internal investigations; Quinlan is positioned as a conflict-free, independent alternative to Kroll's broader risk advisory practice.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Quinlan Partners