Company lists · Data refreshed September 2026
Top 8 Security agencies based in Ottawa, Canada
RevenueBase identified 29 security agencies headquartered in Ottawa, Canada as of September 2026 and tracks 1,516 professional contacts across them, including 593 with verified work emails. Toronto is the largest hub.
This list covers security agencies headquartered in Ottawa, Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 8 largest security agencies based in Ottawa, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,290 contacts → | ||||
Strong evidence “Public Safety Canada was created in 2003 to ensure coordination across all federal departments and agencies responsible for national security and the safety of Canadians.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 11 contacts → | ||||
Strong evidence “OnPar Solutions is a security consulting firm providing trusted physical and cybersecurity expertise to government, private sector, and not-for-profit organizations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 10 contacts → | ||||
Strong evidence “The vision of Signal of Ottawa is to provide a full suite of world-class and industry-leading security services for residential, commercial, retail and institutional customers in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 10 contacts → | ||||
Strong evidence “Signal 88 Security of Ottawa, Ontario was founded by Andrew Ralph in 2015.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 8 contacts → | ||||
Strong evidence “Welcome to Limerock, where security meets innovation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 6 contacts → | ||||
Indirect evidence “Juno Risk Solutions is a veteran-owned Canadian professional services firm dedicated to helping organizations navigate complex risk landscapes with data-driven insights.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 contacts → | ||||
Strong evidence “Harkav Security delivers dependable on-site protection and mobile patrols for property managers, construction firms, retailers, events, and residential communities across AB, ON…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4 contacts → | ||||
Strong evidence “GHT Global delivers responsive and discreet security solutions, capability development and capacity building to Government and Commercial customers around the world.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security agencies.
- Partial evidence
- Its own public description names part of security agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 8 of 29 security agencies based in Ottawa, Canada
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 593 reachable decision-makers.
Free signup · no credit card
Security agencies based in Ottawa, Canada at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured across the whole Canada list rather than for Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 29 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Ottawa, Canada whose own description of what they do matches “security agencies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security agencies, and records with no verified work email. Companies headquartered outside Ottawa are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 593 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security agencies by metro in Canada
- Security agencies in Toronto103
- Security agencies in Montreal35
- Security agencies in Vancouver34
- Security agencies in Calgary33
- Security agencies in Edmonton31
- Security agencies in Mississauga31
- Security agencies in Ottawa29
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many security agencies are there based in Ottawa, Canada?
RevenueBase identified 29 security agencies headquartered in Ottawa, Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Public Safety Canada Sécurité Publique Canada, headquartered in Ottawa, tops this list with the largest team on record.
Which city has the most security agencies?
Toronto leads with 103 headquartered companies, followed by Montreal (35) and Vancouver (34).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 593 verified decision-maker contacts tracked across these 29 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 29 security agencies based in Ottawa, Canada. Start with a free account, no credit card.
Download this list →Related lists
Security agencies by geography
- Security agencies based in Sao Paulo, Brazil
- Security agencies based in Calgary, Canada
- Security agencies based in Mississauga, Canada
- Security agencies based in Toronto, Canada
- Security agencies based in Vancouver, Canada
- Security agencies based in Mumbai, India
- Security agencies based in New Delhi, India
- Security agencies based in Pune, India
- Security agencies based in Johannesburg, South Africa
- Security agencies based in London, United Kingdom
- Security agencies based in Atlanta, United States
- Security agencies based in Austin, United States
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security agencies based in Sao Paulo, Brazil
- Security agencies based in Calgary, Canada
- Security agencies based in Mississauga, Canada
- Security agencies based in Toronto, Canada
- Security agencies based in Vancouver, Canada
- Security agencies based in Mumbai, India