The largest brokerages in Newmarket
9 offices, 730 agents counted at the 2026-09-27 scan. Right at Home Realty - Newmarket leads with 263 agents — 36% of the tracked roster, ahead of CENTURY 21 Heritage Group Ltd. Brokerage at 139. The local market is fairly concentrated (top three hold 67.7%).
The top 9 at a glance
Agents on the roster at the 2026-09-27 scan; percentages are share of all 730 tracked in Newmarket.
- Right at Home Realty - Newmarket 263 36.0%
- CENTURY 21 Heritage Group Ltd. Brokerage 139 19.0%
- REMAX Realtron Realty Inc 92 12.6%
- REMAX Hallmark York Group Realty Ltd 85 11.6%
- Coldwell Banker The Real Estate Centre, Brokerage 71 9.7%
- Royal LePage RCR Realty 71 9.7%
- Sutton Group Kings Cross Inc., Brokerage 4 0.5%
- REMAX Realtron Turnkey Realty 3 0.4%
- Sutton Group - Admiral Realty Inc., Brokerage 2 0.3%
Bar length is relative to the largest row; percentages are share of all 730 tracked agents. Download this chart as an image ↓
Every office we track in Newmarket
| # | Office | Network | Agents | Share |
|---|---|---|---|---|
| 1 | Right at Home Realty - Newmarket | Right at Home | 263 | 36% |
| 2 | CENTURY 21 Heritage Group Ltd. Brokerage | Century 21 | 139 | 19% |
| 3 | REMAX Realtron Realty Inc | RE/MAX | 92 | 12.6% |
| 4 | REMAX Hallmark York Group Realty Ltd | RE/MAX | 85 | 11.7% |
| 5 | Coldwell Banker The Real Estate Centre, Brokerage | Coldwell Banker | 71 | 9.7% |
| 6 | Royal LePage RCR Realty | Royal LePage | 71 | 9.7% |
| 7 | Sutton Group Kings Cross Inc., Brokerage | Sutton | 4 | 0.6% |
| 8 | REMAX Realtron Turnkey Realty | RE/MAX | 3 | 0.4% |
| 9 | Sutton Group - Admiral Realty Inc., Brokerage | Sutton | 2 | 0.3% |
Offices with fewer than 10 agents appear in this table but don't get their own page. Across the 449 Newmarket agents whose sites we check, 82.2% list a website of their own (national 59%).
Network mix in Newmarket
Coverage: these are the 6 national networks we scrape — about 46.2% of Canadian REALTORS® nationally. Independents and brokerages outside those networks aren't counted, so read this as the largest offices among the networks we track in Newmarket. Methodology →
Need the Newmarket roster itself?
Filter the agents behind these counts by office, role or producer tier and download the segment you need.
Build a Newmarket list →