Browse the Top Private Investigators Serving Wheaton, IL

Stealth Investigative provides professional private investigation services including surveillance, background checks, and accident investigations. Based in Downers Grove, IL, we serve clients across the Midwest with a focus on accuracy, integrity, and legal compliance. Our team's 25+ years of experience ensures reliable solutions for insurance claims, domestic cases, and corporate due diligence.

Elite Process Serving provides nationwide process serving, skip tracing, and heir search services with offices in Illinois and Florida. Since 2003, we've delivered fast, accurate results for law firms, government agencies, and private clients. Our services include routine, rush, and same-day options, supported by a secure online case management system for real-time tracking.

Protek International provides expert digital forensics, eDiscovery, and cyber security services to protect organizations' critical assets. Founded in 2005 by former law enforcement professionals, we combine technical expertise with ethical standards to deliver actionable intelligence and proactive security solutions. Our team of court-recognized specialists helps clients navigate complex cyber threats while maintaining compliance with evolving regulatory requirements.

VTS Investigations provides investigative, security, and legal document services to clients in Chicago and surrounding areas. Established in 1980, the agency specializes in background checks, asset searches, litigation support, and criminal investigations. Our team leverages law enforcement experience and advanced technology to deliver precise, court-ready results for legal, insurance, and corporate clients.