The largest brokerages in Alliston
3 offices, 37 agents counted at the 2026-09-23 scan. REMAX Hallmark Chay Realty leads with 20 agents — 54.1% of the tracked roster, ahead of CENTURY 21 Heritage Group Ltd. Brokerage at 14. The local market is unusually concentrated — three offices hold most of it (top three hold 100%).
The top 3 at a glance
Agents on the roster at the 2026-09-23 scan; percentages are share of all 37 tracked in Alliston.
- REMAX Hallmark Chay Realty 20 54.1%
- CENTURY 21 Heritage Group Ltd. Brokerage 14 37.8%
- Sutton Group - Incentive Realty Inc., Brokerage 3 8.1%
Bar length is relative to the largest row; percentages are share of all 37 tracked agents. Download this chart as an image ↓
Every office we track in Alliston
| # | Office | Network | Agents | Share |
|---|---|---|---|---|
| 1 | REMAX Hallmark Chay Realty | RE/MAX | 20 | 54.1% |
| 2 | CENTURY 21 Heritage Group Ltd. Brokerage | Century 21 | 14 | 37.8% |
| 3 | Sutton Group - Incentive Realty Inc., Brokerage | Sutton | 3 | 8.1% |
Offices with fewer than 10 agents appear in this table but don't get their own page.
Network mix in Alliston
Coverage: these are the 3 national networks we scrape — about 46.1% 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 Alliston. Methodology →
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