Top Tech Startups in Ontario, Canada in 2026

Lemberg Health is a remote dosimetry services firm providing on-demand, expert treatment planning to radiation oncology clinics across Canada and the United States. Founded by a dual-licensed Certified Medical Dosimetrist (CMD) with clinical experience at Princess Margaret.

We help people turn memories into personalized figurines for meaningful gifting

Optimyze1 was built by people who have actually hired and built teams from the inside We’ve sat on both sides of the table: in executive search and inside high-growth tech companies — and we’ve seen where hiring breaks down. Not in theory. In practice. Most hiring processes don’t fail because of effort. They fail because of weak signal, slow decisions, and a lack of real ownership. That’s where we’re different. We partner with SaaS, AI, and DeepTech companies to hire high-impact go-to-market and technical talent. Not by flooding pipelines — but by bringing structure, judgment, and clarity to how hiring decisions are made. Our focus is simple: Better hiring outcomes. Stronger candidates. Sharper decisions. Faster signal. No noise. No unnecessary process. No wasted time. We typically support: • Sales (Business Development, Account Executives, Customer Success, Leadership) • Marketing (Managers through to CMO) • Solutions Engineering • Product Management • Engineering (Front-End, Back-End, Full-Stack, Staff/Principal, Leadership) Most of the teams we work with are scaling fast. Hiring becomes reactive. The process gets noisy. Standards slip. We step into that environment, bring control back to the process, and raise the bar on every hire.

PathPilot is building an AI Career Companion to help people navigate and optimize their careers in the age of AI. As AI transforms the workforce—displacing millions of roles while creating entirely new ones—most people are left without a clear path forward. Career tools today are outdated, generic, and not built for a world where skills shift every year and job titles evolve overnight. At PathPilot, we're creating a personalized AI assistant that acts like a coach, strategist, resume writer, and accountability partner—all in one. Powered by LLMs, vector databases, and fine-tuned models, our product gives people real-time support on everything from goal setting and job discovery to interview prep and upskilling. We’ve secured 7-figures in non-dilutive funding, formed key partnerships across workforce innovation and education, and are now building with real users. Our go-to-market is B2B2C, and our mission is simple: help millions of people grow, adapt, and thrive in a rapidly changing world of work. If you’re excited by fast iteration, deep tech, and making a lasting human impact—we’d love to connect.

Peregrine Professional Services is an AI-native accounting and financial operations company building the next generation of accounting firms. Unlike traditional service firms that scale through headcount, we are building a technology-first, automation-driven firm designed to operate more like a software company. Our goal is to automate large portions of bookkeeping, financial operations, reporting, compliance, and internal workflows through AI agents, workflow orchestration, and intelligent operational systems. We believe the future of accounting firms will be defined by: automation over manual processes systems over labor operational scalability over linear headcount growth AI-assisted workflows with human oversight Peregrine operates as both: an accounting firm serving clients today a technology company building the internal infrastructure powering AI-native financial operations We are developing an internal agentic operating system that coordinates AI agents, workflow engines, integrations, review layers, and operational tooling across accounting workflows. Rather than layering AI onto legacy systems, we are redesigning workflows from the ground up to be automation-first. Our long-term vision extends beyond operating a single firm. We are pursuing a roll-up strategy by acquiring accounting firms and transitioning their operations into this AI-native operating model, creating a scalable and significantly more efficient platform for financial operations. The company operates at the intersection of: AI agents and LLM workflows workflow orchestration backend infrastructure automation systems accounting operations operational tooling process optimization We are an early-stage, high-ownership team that values initiative, clear communication, fast iteration, continuous learning, and strong execution. We are looking for people excited by the opportunity to help build an AI-native company from the ground up and rethink how operational businesses are run.

Founded in 1988 and headquartered in Bolingbrook, Illinois, S&S Activewear is a leading, technology-enabled apparel and accessory distributor in the United States and Canada. S&S offers more than 80 brands, including basic garments to fashion-forward styles, with over 4 million square feet of warehouse space throughout North America. S&S services a broad range of customers through its nationwide network, including retail brands, e-commerce companies, garment decorators, promotional products distributors, entertainment merchandisers, lifestyle brands and web-based platforms for apparel customization.