Nicoll Investigations specializes in cold case reviews, missing persons investigations, advanced OSINT intelligence gathering, and surveillance operations — serving families and clients across Canada and the United States.
We bring professional investigative methodology and modern OSINT intelligence tools to cases that deserve another look — regardless of how long they've been unsolved.
Fresh eyes on unsolved homicides and cold cases. We review existing case files, conduct independent OSINT research, and produce written reports with actionable findings — often uncovering leads that weren't available when the original investigation closed.
Learn more →Active and historical missing persons investigations, including locate searches for long-lost family members, adoption reunions, and estate heir searches. We use digital tracing, public record research, and advanced people-search tools.
Learn more →Open-source intelligence gathering using advanced digital research techniques — social media analysis, public records deep dives, digital footprint tracing, reverse image search, archive research, and cross-platform identity investigation.
Learn more →Consulting credits include The Christine Jessop Story and work with CBC. We provide investigative expertise, case research, and on-camera consultation for true crime documentaries, podcasts, and broadcast productions across Canada and internationally.
Learn more →Surveillance operations, genealogical investigations, expert witness and legal consulting, due diligence and background research, fraud investigations, forensic data analysis, and more.
See all services →Nicoll Investigations is a licensed private investigation firm based in Richmond Hill, Ontario, with a particular focus on cold case reviews and missing persons investigations. We combine traditional investigative methodology with modern OSINT tools and spatial analysis techniques including Geo Profiling — bringing a level of technical depth rarely found in private investigation.
Our work extends beyond Ontario. Through advanced remote OSINT capabilities, we serve families and clients across Canada and the United States — because cold cases don't respect provincial borders.
Begin a ConsultationHosted by Jay Nicoll, Ontario Cold Cases examines unsolved murders, missing persons, and historical cold cases from Ontario and across Canada — bringing a licensed investigator's perspective to cases that deserve public attention.
New episodes every week. Featured cases include the Sherman Murders, Christine Prince, Elizabeth Bain, and dozens more.
Every case begins with a free, confidential conversation. No obligation — just an honest assessment of whether we can help.
Confidential 30-minute call. We listen, assess, and tell you honestly what we can do.
We examine all available documents, media coverage, and materials you provide.
Independent open-source investigation — digital traces, records, and pattern analysis.
A clear, sourced report of findings, gaps, and specific recommended next steps.
We walk you through findings and discuss whether continued investigation makes sense.
Cold case reviews and missing persons investigations are priced as flat-fee Tier packages — you know the full cost before work begins. All other services are quoted individually after a free consultation. No work commences until the scope and fee are agreed in writing.
Pre-2000 cases priced at $900–$1,000 for Tier 1 due to additional archive research requirements. Complex pre-2000 cases are often best suited to Tier 3 from the outset — discussed at free consultation.
Covert and overt surveillance for civil, domestic, insurance, and corporate matters. Written report with timestamped photographic or video evidence. Expenses quoted separately.
Request a QuoteOpen-source intelligence for litigation support, asset location, person of interest research, corporate intelligence, or personal matters. Full source documentation provided.
Request a QuoteComprehensive background research for business partnerships, employment, tenancy, investment due diligence, and personal situations. Public records, court history, corporate filings, and digital footprint.
Request a QuoteProfessional genealogical research for inheritance matters, estate disputes, adoption searches, family history, and investigative genealogy supporting cold case work. DNA interpretation available.
Request a QuoteExpert witness services for civil and criminal proceedings. Testimony on investigative methodology, OSINT, digital evidence, and cold case procedures. Consulting for legal counsel on investigative strategy and evidence assessment.
Request a QuoteInvestigative consulting for documentary filmmakers, journalists, and broadcasters. Case research, OSINT support, on-camera expert commentary. Credits: The Christine Jessop Story, CBC. Host of Ontario Cold Cases Podcast.
Request a QuoteCanada's true crime podcast — new cases every week. Hosted by licensed PI Jay Nicoll. Available wherever you get your podcasts.