About Our Company


was founded in 1999 by legendary San Francisco private investigator Seth Derish and former judicial investigator Carlos Valverde because they envisioned a Central American consultancy that was oriented towards serious civil and business investigations. The agency has continuously served in this capacity since inception and their reach continues in all Central American nations. With the addition of attorney Jorge Gonzalez Mendez in 2008, the firm truly can support almost any type of investigative need in the Americas.


was founded in 1978 in San Francisco, California by Mr. Derish, who at the time was the youngest licensed private investigator in the state’s history. The firm has worked for most major law firms and financial institutions in Northern California and their current clientele spans the globe. In addition to San Francisco, the firm has offices in Oregon and Arizona. While Mr. Derish handles international clients, his partner, Mary Nikas, is in charge of U.S. operations. She has been a licensed investigator for 20 years and comes from a background in the real estate and financial services industry.

Mr. Derish

is the regional director for Central and South America for the Council of International Investigators, a prestigious international association with members in more than 50 countries. He is also a lifetime member of the World Association of Detectives, the largest and oldest association in the world. He counts amongst his colleagues some of the most influential and important private investigators in the world.

Member of:

Council of International Investigators (CII)
World Association of Detectives Lifetime Member (WAD)
California Association of Licensed Investigators (CALI)
Oregon Association of Licensed Investigators (OALI)
Association of Certified Fraud Examiners (ACFE)


Costa Rica I.D.: 3-101-239-587
California P.I. No.: 12656
Oregon P.I. No.: 33709

Call us now ! We can help with the following:

Due Diligence, Asset Report, Death Verifications, Intellectual Property, Site Location Services, Location Reports/Missing Persons, Bail Bond Recovery, Accident Investigations, Criminal Investigations, Services of Foreign Process, and more..
Call now !!