Answer First: No one can honestly name Ontario's "biggest" landscaping company by revenue, because these businesses are private and do not report sales. So YardQuote ranks the 650 GTA landscaping companies it tracks by what is public and verifiable: Google review volume and rating. Among actual landscaping contractors, the most-reviewed include Corepro Landscaping, Gardenzilla, Lawn Troopers, Action Home Services, and Sunready Landscaping. But review count measures visibility, not who is best for your yard, so treat it as a starting point, not a verdict.
Search "biggest landscaping companies in Ontario" and you get lists built on guesswork, because the number that would define "biggest," annual revenue, is private and unpublished. We took the honest route instead: rank on data anyone can verify.
Why is "biggest" the wrong question?
Because "biggest" almost always means revenue, and landscaping company revenue is not public. These are privately held businesses that do not file public sales figures, so any list claiming to rank them by size is guessing. Worse, raw popularity is misleading: the highest review counts in our whole dataset belong to big-box retailers and garden centres, a national hardware chain, a couple of nurseries, not to companies that will build your patio or maintain your lawn.
So we ask a question we can actually answer: among real landscaping contractors, who has earned the most verified public reviews, and at what rating? That is a measure of visibility and staying power, and it is honest about what it is.
Quotable: No one can verify Ontario's biggest landscaping company by revenue, because these businesses are private. Review volume and rating are public, so that is the only honest basis for a ranking.
Which landscaping companies are the most-reviewed in the GTA?
Below are the most-reviewed actual landscaping contractors in YardQuote's GTA dataset, by Google review count, with retailers and garden centres removed (YardQuote tracking, July 2026).
| Company | Area | Google reviews | Rating |
|---|---|---|---|
| Corepro Landscaping | Liberty Village, Toronto | 703 | 4.8 |
| Gardenzilla Lawn & Garden | East York | 589 | 4.9 |
| Lawn Troopers | Islington–City Centre West | 499 | 4.7 |
| Action Home Services | Markham | 348 | 4.8 |
| Mr. Mow It All | Leaside | 296 | 4.5 |
| Sunready Landscaping | Markham | 272 | 4.9 |
Every one of these carries hundreds of reviews at 4.5 stars or better, which is genuinely strong. But notice the spread in ratings even here: the list is sorted by volume, not quality, and the highest-rated names are not the highest-volume ones.
From the data: YardQuote tracks 650 landscaping companies across the GTA. Of the 613 with three or more reviews, the average rating is 4.77 and 86% hold 4.5 stars or higher (YardQuote tracking, July 2026). The GTA landscaping market is deep and mostly well-reviewed, so the goal is fit, not just finding a big name.
What does review count actually tell you?
Two things, and neither is "best." A high review count tells you a company has been around a while and markets itself actively enough to collect a lot of feedback. It does not tell you they are the right crew for a small backyard sod job, or that their quality held up over those years.
The rating matters more than the count. A company at 4.9 stars across 270 reviews has a stronger track record than one at 3.8 across thousands, because the second one is accumulating unhappy customers along with the happy ones. Volume plus a high rating is the reassuring combination; volume with a mediocre rating is a warning.
So how should you actually pick a landscaper?
Use the ranking as a shortlist, then judge fit. Read the recent reviews, not just the star average, to see whether the company is still doing good work now. Check that they actually do your kind of job, a firm known for large design-build projects may not want your $3,000 sod refresh. And compare quotes within the same tier of contractor, which is where the real price differences come from, as our guide to why Toronto landscaping quotes vary explains.
You can see how every tracked company is ranked on the YardQuote methodology page, browse the landscaping directory for North York, check current rates on the Toronto landscaping cost guide, or, if the job is recurring upkeep rather than a build, read what lawn maintenance includes.
Want to compare vetted, well-reviewed pros for your specific job? Request a quote and compare up to three side by side. Your contact details only go to the one you pick.