Company lists · Data verified August 2026

Top 25 List building services based in Toronto, Canada

Name: List building services based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 310 companies tracked

There are 310 list building services headquartered in Toronto, Canada (RevenueBase, August 2026). RevenueBase tracks 2,486 professional contacts across them, including 1,039 with verified work emails and 172 with mobile numbers. Toronto is the largest hub.

This list covers list building services headquartered in Toronto, Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

310Companies

2,486Contacts tracked

1,039Verified emails

172Mobile numbers

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The 25 largest list building services based in Toronto, Canada

Ranked by team size

Top 25 of 310 list building services based in Toronto, Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	BBB Architects	Toronto, ON	51-200	172	67
2	Scott Construction Group	Toronto, ON	51-200	148	90
	RevenueBasePublisher of this directory	Boston, MA	n/a	n/a	Try free
3	Blackwell	Toronto, ON	51-200	94	41
4	BDA INC	Toronto, ON	51-200	84	53
5	G. L. Smith Planning & Design INC	Toronto, ON	11-50	80	66
6	BLT Construction Services	Toronto, ON	51-200	69	46
7	Mform Construction Group	Toronto, ON	51-200	68	57
8	Synergy Partners Consulting Limited	Toronto, ON	51-200	60	49
9	Fieldgate Construction Management Limited	Toronto, ON	51-200	50	33
10	Cs&p Architects INC	Toronto, ON	11-50	43	34
11	Architectsalliance	Toronto, ON	51-200	42	22
12	Corebuild Construction LTD	Toronto, ON	51-200	40	26
13	SKY Contracting INC	Toronto, ON	51-200	38	2
14	Compass Construction Resources LTD	Toronto, ON	11-50	26	12
15	Norseman Construction & Development LTD	Toronto, ON	11-50	23	9
16	Snyder Architects INC	Toronto, ON	11-50	21	16
17	AAI Architects, P.C	Toronto, ON	201-500	18	15
18	FOX Contracting LTD	Toronto, ON	11-50	17	12
19	The Ingenium Group	Toronto, ON	501-1,000	17	3
20	GES Construction LTD	Toronto, ON	11-50	15	3
21	Grove Project Management INC	Toronto, ON	11-50	12	9
22	Woodbecker INC	Toronto, ON	11-50	12	6
23	Duffy & Associates Design Build	Toronto, ON	11-50	12	5
24	Makow Associates Architect INC	Toronto, ON	11-50	11	11
25	AAA Architects INC	Toronto, ON	11-50	10	6

Showing 25 of 310 list building services based in Toronto, Canada

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List building services based in Toronto, Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 310 HQs

172Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

179

11-50

104

51-200

201-500

501-1,000

List building services by metro in Canada

Metro	Companies
List building services in Toronto	310
List building services in Vancouver	137
List building services in Montreal	131
List building services in Calgary	116
List building services in Ottawa	87
List building services in Mississauga	84
List building services in Edmonton	70
List building services in Winnipeg	48

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “list building services”, with match quality audited by blind human judging, and headquartered in Toronto, Canada.
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: Contact records re-verify on a rolling cadence; 5 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many list building services are there based in Toronto, Canada?

There are 310 list building services headquartered in Toronto, Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

BBB Architects, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most list building services?

Toronto leads with 310 headquartered companies, followed by Vancouver (137) and Montreal (131).

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 1,039 verified decision-maker contacts tracked across these 310 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.