Identity graph
Dumas Contracting headquarters, locations and relationships
- Legal name
- DUMAS HOLDINGS INC
- Industry
- Mining and Metals
- Founded
- 1994
- Phone
- +1 416 594 2525
- Website
- dumasmining.com
Dumas Contracting office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Toronto | Ontario | Canada | Headquarters |
| Timmins | Ontario | Canada | Office |
| Val-d'Or | Quebec | Canada | Office |
| Jakarta | Jakarta | Indonesia | Office |
| Chihuahua | Chihuahua | Mexico | Office |
| Concepción | Junin | Peru | Office |
- Parent company
- No parent company recorded in GraphIQ.ai.
- Competitors
- Dumas Contracting competes with 6 organizations in the GraphIQ.ai identity graph.
Verified from public filings, company websites and news · Methodology
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About Dumas Contracting
Dumas Contracting is headquartered in Toronto, Ontario, Canada. Founded in 1994, the company has 14 recorded locations across 5+ countries and employs approximately 1,001 people worldwide.
Where is Dumas Contracting's main office?
Dumas Contracting's main headquarters office is located at Royal Bank Plaza, South Tower, Suite 2301, Toronto, Ontario M5J 2J1, Canada. This is the company's primary corporate address.
Dumas Contracting regional offices
Beyond its headquarters in Toronto, Dumas Contracting has recorded locations in Canada, Indonesia, Mexico, Peru and United Kingdom.
Dumas Contracting contact information
The main switchboard for Dumas Contracting headquarters can be reached at +1 416 594 2525. Official website: dumasmining.com.
What does Dumas Contracting do?
Dumas Holdings is a full-service underground mine builder, designer, operator and contractor offering operations to customers.
One entity, every stage
Put Dumas Contracting to work across your revenue bowtie
- Target Define the market Build the account list from companies shaped like your best customers, Dumas Contracting included. Fingerprint search
- Cover Plan territories Dumas Contracting's 14 locations roll up to one account, so it lands in one territory, once. Territory planning
- Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring
- Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment
- Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer
- Expand Find the next buyer inside Follow subsidiaries and divisions to the next team that can buy. Account expansion
About the source
What is GraphIQ.ai?
A B2B identity graph. It resolves each organization into one verified entity and maps its parent and subsidiaries, employees, competitors and news signals. Revenue teams use it in the product; AI agents query it through the REST API and MCP server.
POST/api/v2/organizations/search
Dumas Contracting: frequently asked questions
Where is Dumas Contracting headquarters?
Royal Bank Plaza, South Tower, Suite 2301, Toronto, Ontario M5J 2J1, Canada.
What is Dumas Contracting's phone number?
+1 416 594 2525 (headquarters).
When was Dumas Contracting founded?
1994.
How many employees does Dumas Contracting have?
About 1,001, as of October 2026 (GraphIQ.ai estimate).
How many offices does Dumas Contracting have?
14 locations across 5+ countries, including Timmins, Val-d'Or, Jakarta, Chihuahua.
Questions about GraphIQ.ai
Is GraphIQ.ai a list of companies like a spreadsheet?
No. Each organization resolves to one verified entity linked to its parent, subsidiaries, people and signals, so Dumas Contracting here is the same Dumas Contracting in your CRM, territory plan and agent answers.
Where does this Dumas Contracting data come from?
Public filings, company websites and news, resolved to one entity and continuously updated.