Companies in Ottawa

Q: How many companies are in Ottawa?

Our Ottawa business directory currently lists every registered legal entity with a Ottawa address in the official Canada business register. The exact count is shown live at the top of this page.

Q: Where does Ottawa company data come from?

Ottawa records are sourced directly from the official Canada business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.

Q: How often is Ottawa data updated?

Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Ottawa list never goes stale.

Q: Can I filter Ottawa companies by industry?

Yes. Every Ottawa record is tagged with SIC industry codes. You can request your directory filtered by one or several SIC codes, employee size bands, or revenue thresholds.

Q: Which file formats do you deliver?

Excel (.xlsx), CSV, and JSON. For API customers, data is streamed as paginated JSON. Custom formats (Parquet, SQL dump) are available on request.

Q: Is the Ottawa data GDPR compliant?

Yes. We only deliver legal-entity data and publicly listed business contact details. We do not include personal data of natural persons unless required by the company register itself (e.g. sole traders).

Q: Can I get a sample before buying?

Yes. Request a free 100-record sample of Ottawa data and we will email it within one business day.

Q: Do you offer API access for Ottawa data?

Yes. The full Ottawa dataset is available through our REST API with the same filters as our directory builder. See our API page for pricing tiers.

Q: How fast can Ottawa data be delivered?

Standard Excel and CSV directories are delivered within 24 hours. API access is provisioned within one business day. Rush delivery (same-day) is available on request.

Q: Can I get historical Ottawa data?

Snapshot data going back 3 years is available for most fields, and 7+ years for core registry fields. Useful for trend analysis and churn studies - ask for a custom quote.

Behind every street in Ottawa sits a business. 136,098 of them, to be exact, all registered in the Canada business register. The biggest single industry is Security Brokers, Dealers, and Flotation Companies with 11,670 companies, roughly 9% of everything that does business in the city.

136,098 businesses indexed

Government Of CanadaGovernment Of Canada

	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Government Of Canada	Canada	Ottawa	111 Wellington St	Ontario	K1A 0A9	N/A	1867	$357,286,063,407	367,772		14095	N/A
2	Public Sector Pension Investment Board	Canada	Ottawa	135 Laurier Ave W	Ontario	K1P 5J2	N/A	1999	$14,941,977,072	229	Corporation	14095	N/A
3	Department Of National Defence And The Canadian Armed Forces	Canada	Ottawa	60 Moodie Dr	Ontario	K1A 0K2	N/A	1867	$12,353,424,000	68,000	Corporation	14095	N/A
4	Shopify INC	Canada	Ottawa	151 O'Connor St Ground Fl	Ontario	K2P 2L8	shopify.*****	2004	$11,556,000,000	7,000	Corporation	30	4261607
5	Public Safety Canada	Canada	Ottawa	269 Laurier Ave W	Ontario	K1A 0P8	publicsafety.*****	2003	$10,049,550,000	50,000	Corporation	14095	N/A
6	Costco Wholesale Canada LTD	Canada	Ottawa	415 W Hunt Club Rd	Ontario	K2E 1C5	costco.*****	2014	$8,365,940,000	55,000	Corporation	1053	8915342
7	Canada Post CORPORATION	Canada	Ottawa	N1200-2701 Riverside Dr	Ontario	K1A 0B1	N/A	1867	$7,124,237,358	80	Corporation	14095	N/A
8	Export Development Canada	Canada	Ottawa	150 Slater St	Ontario	K1A 1K3	edc.*****	1944	$3,163,548,416	1,500	Corporation	14095	N/A
9	Health Canada	Canada	Ottawa	70 Colombine Driveway Tunney'S Pasture	Ontario	K1A 0K9	healthcanada11.*****	1867	$2,725,020,000	15,000		14095	N/A
10	Fisheries And Oceans Canada	Canada	Ottawa	200 Kent St 13th Fl	Ontario	K1A 0E6	dfo-mpo.*****	1867	$1,981,369,278	9,858	Corporation	14095	N/A
11	Royal Canadian Mounted Police	Canada	Ottawa	73 Leikin Dr	Ontario	K1A 0R2	rcmpva.*****	1873	$1,640,290,499	18,000		14095	N/A
12	Victor Insurance Managers INC	Canada	Ottawa	1400 Blair Towers Pl Suite 50	Ontario	K1J 9B8	victorinsurance.*****	1931	$1,566,214,320	330	Corporation	1698	N/A
13	Ironhorse CORPORATION	Canada	Ottawa	884 Churchill Ave S	Ontario	K1Z 5H2	ironhorsesecurity.*****	2002	$1,471,597,600	2,200	Corporation	2	N/A
14	Costco Canada Holdings INC	Canada	Ottawa	415 West Hunt Club Rd	Ontario	K2E 1C5	costco.*****	2019	$1,408,555,500	5,500	Corporation	1053	11595962
15	The Ottawa Hospital	Canada	Ottawa	1053 Carling Ave	Ontario	K1Y 4E9	ottawahospital.*****	1998	$1,332,960,000	12,000	Non profit organization	16	N/A
16	Giant Tiger Stores LIMITED	Canada	Ottawa	2480 Walkley Rd	Ontario	K1G 6A9	stores.*****	1961	$1,216,864,000	8,000	Corporation	28	N/A
17	Canadian Blood Services	Canada	Ottawa	1800 Alta Vista Dr	Ontario	K1G 4J5	blood.*****	1998	$1,161,570,766	3,900	Non profit organization	59	3463486
18	Immigration, Refugees And Citizenship Canada	Canada	Ottawa	365 Laurier Ave W	Ontario	K1A 1L1	cic.*****	1867	$1,159,950,180	6,385	Corporation	14095	N/A
19	Global Affairs Canada	Canada	Ottawa	125 Sussex Dr	Ontario	K1A 0G2	international.*****	1867	$1,085,102,964	5,973	Corporation	14095	N/A
20	Agriculture And Agri-Food Canada	Canada	Ottawa	7-1341 Baseline Rd	Ontario	K1A 0C5	agriculture.*****	1868	$1,043,947,254	5,194	Corporation	14095	N/A
21	Natural Resources Canada	Canada	Ottawa	580 Booth St 18 Fl	Ontario	K1A 0E4	nrcan.*****	1867	$1,017,340,800	5,600	Corporation	14095	N/A
22	University Of Ottawa	Canada	Ottawa	550 Cumberland St	Ontario	K1N 6N5	uottawa.*****	1885	$971,041,500	6,500	Non profit organization	35	N/A
23	Mitel Networks CORPORATION	Canada	Ottawa	4000 Innovation Dr	Ontario	K2K 3K1	mitel.*****	2019	$933,619,500	3,300	Corporation	275	11249436
24	Calian LTD.	Canada	Ottawa	770 Palladium Dr 4th Flr	Ontario	K2V 1C8	calian.*****	2022	$735,996,800	2,200	Corporation	27	13622932
25	Ottawa-Carleton District School Board	Canada	Ottawa	133 Greenbank Rd	Ontario	K2H 6L3	ocdsb.*****	1880	$693,833,000	7,000	Non profit organization	156	N/A

Showing 25 of 136,098 companies

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Largest companies in Ottawa

Which company is the largest in Ottawa depends on how you measure. You can look at valuation, at revenue or at how many people work there. Valuations are private for most companies, so here we stick to revenue and headcount.

By revenue, Public Sector Pension Investment Board comes first in Ottawa. It is part of a group with $14.9 billion in yearly revenue. By headcount, Ironhorse CORPORATION comes first with 2,200 employees. We only looked at the 73,450 corporations in Ottawa for this; sole traders, foundations and other legal forms are left out.

The two tables below show how all 136,098 companies in Ottawa are spread across revenue and headcount bands.

Yearly revenue

24.2%of companies have $100,000 to $500,000 in yearly revenue

Revenue (USD)	Count	Share
up to $100,000	816	0.6%
$100,000 to $500,000	32,932	24.2%
$500,000 to $1M	28,965	21.3%
$1M to $5M	27,107	19.9%
$5M to $10M	1,125	0.8%
$10M to $50M	784	0.6%
$50M to $100M	102	0.1%
$100M to $500M	104	0.1%
$500M to $1B	12	<0.1%
$1B or more	21	<0.1%
Unknown	44,130	32.4%

Headcount

53.1%of companies have 1 to 4 employees

Employees	Count	Share
1-4	72,330	53.1%
5-9	21,401	15.7%
10-19	6,799	5.0%
20-49	3,350	2.5%
50-99	713	0.5%
100-199	437	0.3%
200-499	169	0.1%
500-999	60	<0.1%
1,000-4,999	23	<0.1%
5,000-9,999	2	<0.1%
10,000+	1	<0.1%
Unknown	30,813	22.6%

Source: business register and CompanyData. "Unknown" means no published figure.

Largest industries in Ottawa

The biggest industry groups in Ottawa by registered company count, with the top five companies by revenue in each.

Security Brokers, Dealers, and Flotation Companies

11,670 companies

SIC 6211

View all 11,670 in our tool →

General business services

7,617 companies

SIC 7389

View all 7,617 in our tool →

Restaurants and eating places

4,463 companies

SIC 5812

View all 4,463 in our tool →

Business Consulting Services, Not Elsewhere Classified

4,165 companies

SIC 8748

View all 4,165 in our tool →

Management consulting

2,550 companies

SIC 8742

View all 2,550 in our tool →

Offices and Clinics of Doctors of Medicine

1,923 companies

SIC 8011

View all 1,923 in our tool →

General Contractors-Single-Family Houses

1,867 companies

SIC 1521

View all 1,867 in our tool →

Computer Programming Services

1,796 companies

SIC 7371

View all 1,796 in our tool →

All industries in Ottawa

Together, Security Brokers, Dealers, and Flotation Companies, general business services and restaurants and eating places make up the top three industries in Ottawa, accounting for 17% of the city's commercial activity. The oldest company we can find in Ottawa is Springhill Cemetery, founded in 1830, with South Gloucester United Church not far behind. They are still here, along with 136,096 other businesses in Ottawa.

As Canada's capital, Ottawa runs on government work, yet the Kanata tech corridor and two universities feed a steady supply of software firms and consultancies. All of them are in our data. Look up a company in the table at the top of this page, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.

Nonclassifiable Establishments30,342
Security Brokers, Dealers, and Flotation Companies11,670
Business Services, Not Elsewhere Classified7,617
Eating Places4,463
Business Consulting Services, Not Elsewhere Classified4,165
Management Consulting Services2,550
Offices and Clinics of Doctors of Medicine1,923
General Contractors-Single-Family Houses1,867
Computer Programming Services1,796
Real Estate Agents and Managers1,701
Other industries68,004

Put this company table on your own website for free

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<iframe src="https://companydata.com/embed/city/ottawa/" width="100%" height="700" frameborder="0" loading="lazy" title="Companies in Ottawa"></iframe>
<p>Source: <a href="https://companydata.com/companies/companies-ottawa/">Companies in Ottawa</a> by CompanyData</p>

How you receive Ottawa business data

Choose how you want to receive the data. Every company comes with 50+ fields, from address and industry to revenue and contact details, sourced from official Canada business registers.

Excel / CSV download

Custom-built Ottawa directory in Excel or CSV. Filter by industry, employee size, or revenue. Delivered within 24 hours.

API access

Stream Ottawa company data directly into your CRM, marketing stack, or analytics pipeline. JSON, REST, 50+ fields per record.

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Search Ottawa companies in our online tool with filters for industry, size, revenue and SIC code. Export your selection.

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Frequently Asked Questions

Common questions about searching, filtering, and ordering Ottawa company data.