Ranked · 18 of 21 assessed
Ordered by Agency List ScoreDigital twin, OT-IT integration, and cloud-native application development since 2008
Legacy software modernization, cloud migration, and compliance-driven system re-engineering
Empowering digital innovation in healthcare and fintech with IT services
Custom software, CRM automation, ERP workflows, and websites for operations-heavy teams
Custom applications, cloud architecture, and dedicated teams for SaaS, fintech, and healthtech
AI-enabled SaaS, MVP, and CRM development for founders and growing teams
Custom software solutions for diverse industries and platforms
Development and dev services for inbound lead capture and search visibility
Custom website development and e-commerce programming
Custom software development and IT consultancy for global businesses
Digital modernization with cloud services and custom software solutions
Web and PPC services for inbound lead capture and search visibility
Custom software development and modernization for scalable growth
Mobile apps, websites, ERP, and AI automation built for Karachi businesses
Boutique game studio specializing in Unity3D and immersive tech
Custom immersive software for VR, AR, and interactive displays
Software development and cloud computing with global reach
Transforms ideas into thriving software products with AI and IoT expertise
Also in Ontario · 7 not ranked here
4 have not yet been assessed on the Agency List Score. Alphabetical.About this ranking
What this page ranks
This page ranks 18 of the 21 assessed custom software development agencies in Ontario, Canada — the ones carrying a published score — out of 25 listed.
The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.
Cohorts and awards
Agencies are compared within a cohort — here, Custom Software Development in Ontario, Canada. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 21, so the strongest award available here is top 10%.
The 4 custom software development agencies not yet assessed are listed on this page but not ranked.
A further 3 were assessed and no published evidence of their work was found, so no score is shown for them.
Paid placement
Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.
Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.
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Questions
- How many custom software development agencies are in Ontario, Canada?
- 25 are listed on Agency List in Ontario, Canada. 21 of them have been assessed on the Agency List Score as of October 2026, and 18 of those carry a published score.
- Which custom software development agency in Ontario, Canada is ranked highest?
- Toobler, with an Agency List Score of 95.9, ranks #1 of 21 assessed agencies in Custom Software Development in Ontario, Canada.
- Why are 7 custom software development agencies listed here but not ranked?
- 4 of the 25 listed have not yet been assessed on the Agency List Score. A further 3 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
- How is the ranking determined?
- By Agency List Score, within the Custom Software Development in Ontario, Canada cohort of 21 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.