Our Firm

Capitol Inquiry, one of the Washington DC areas most prominent private investigation firms has developed a reputation for successfully handling difficult and complex investigations and for providing high-quality and cost-effective investigative solutions.  Yet, our firm is also known for handling every small case with equal detail and care.  The client we work for expect the same detail of care for small cases that we provide for the large ones.  We deliver this care no matter the size of the case or the customer.   Regardless of the type of case, from Infidelity to Embezzlement, we have experienced investigators who care!  We diligently respect client budgets, concerns, and confidentiality.

Capitol Inquiry LLC provides premium research, due-diligence background reporting, surveillance, financial asset and title searches, litigation support and commercial intelligence. We work with your attorney – or directly with you – to solve your toughest challenges.


Capitol Inquiry’s national and international network includes former journalists, current and former law enforcement officials, the owners of established investigative firms, former military and intelligence officials, former government employees and highly-trained professionals with backgrounds in law, counter-intelligence, government, accounting and risk consulting. Our team has the tools, knowledge and the professional rigor to confront the toughest challenges confronting the client, and to address these concerns efficiently, effectively, and economically. The firm’s work product matches or surpasses that of the largest investigation firms, but at half the cost.


We offer a cross-disciplinary approach with expertise in law enforcement, media, politics, regulation, national security, and global events. We serve private individuals and families, law firms, family foundations, financial institutions, real estate investors, businesses and non-profits, and private investors worldwide.


We view our mission as fundamentally about developing trust. Our founder and our investigators approach every case as if it is our only one. We take on each client as if he or she is our only relationship. We take every client seriously, and take whatever time is needed with each to understand fully the situation and concerns, and to develop agreed-upon tasks for addressing those concerns.

Our Founder

Kenneth V. Cummins founded Capitol Inquiry in  July 1991 after a 19-year career as an award-winning investigative journalist and political columnist.  The firm is headquartered in Washington, D.C. but conducts investigations for clients locally, natio

nally, and internationally.  Capitol Inquiry has a representative in Panama to serve US clients with investigative needs in Mexico and Central and South America, and to provide services to clients in those regions who need to obtain infor

mation and evidence in this country and elsewhere around the globe. Our highly experienced Panama rep has driven every highway and back-road in  Central America.  The firm’s network of established, qualified investigators extends globally.


Ken Cummins created the “Loose Lips”  politics and humor column for The Washington City Paper, and has written for Washingtonian magazine, Playboy, The New Republic and Reader’s Digest, among other publications. His reporting career includes The Washington Post and the national bureau of the Chicago Tribune.  Ken opened and manned the first-ever Washington bureau for the Jacksonville Florida Times-Union, Florida’s oldest newspaper. During the 1980s, he wrote a series of  articles exposing cigarette additives and the practices of the tobacco industry.



Capitol Inquiry LLC

(202) 331-3388
1325 G Street, NW Fifth Floor
Washington, DC 20005