Top Series B companies in Toronto

Companies that have closed a Series B - proven scaling motion, hiring aggressively. Filtered to companies headquartered in Toronto.

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Ranked by current headcount across Series B companies headquartered in Toronto. Refreshed daily.

1
Zafin· Toronto, Ontario, Canada
Zafin is an AI platform company for regulated institutions. Built from more than 20 years of operating in demanding regulated technology environments, Zafin brings structure, intelligence and accountability to how critical work, systems and decisions are created, governed and improved. Zafin’s portfolio includes three platforms: Zafin AIOS, Zafin Banking Platform and Zafin IO. Zafin AIOS is an end-to-end agent orchestration platform and control plane for governed agentic work. It helps regulated institutions orchestrate work performed by internal and approved third-party agents from intent to governed outcome, with human authority, cost controls and proof of work built into the work path. Zafin Banking Platform is the AI-powered banking execution platform for product, pricing, offers, billing, loyalty, relationship and deal logic across retail and corporate banking. It externalizes critical banking logic from legacy environments so banks can launch propositions faster, personalize offers, manage complex relationships and govern how banking value is structured and executed. Zafin IO is the integration platform for regulated institutions. Proven first in banking, it connects data, events, services, workflows and applications across enterprise environments so institutions can connect legacy and modern systems and modernize progressively without disrupting critical operations. Together, they reflect Zafin's core discipline: helping institutions move faster while preserving governance, evidence, control and accountability. Headquartered in Toronto, Canada, Zafin serves institutions across North America, EMEA, and Asia-Pacific. For more information, visit www.zafin.com
- Series B
- 886 employees
- Founded 2002
2
LoyaltyOne· Toronto, Ontario, Canada
As Canada's most recognized loyalty program, the AIR MILES coalition has more than 200 retailer brands, 100s of online retailers, and two AIR MILES credit card partners. AIR MILES Cards are swiped a thousand times a minute, every minute of every day, 7 days a week, from grocery stores to gas stations to home improvement centers, leading to a reward being redeemed every 3.3 seconds. What that means for our clients is deep, valuable insights that let them connect with their shoppers like never before.There’s a reason we’re recognized as one of the best places to work year after year: We have an amazing culture thanks to the collaboration, dedication, and fun that our teams bring to work every day. Discover our core values, stay up to date with the latest events at AIR MILES, get to know our people, and find out firsthand what makes AIR MILES such a great place to work.For more information, visit www.loyalty.com
- Series B
- 480 employees
- Founded 2014
3
AfterShip· Toronto, Ontario, Canada
AfterShip is the intelligent post-purchase platform built for the brands obsessed with what happens after checkout. More than 20,000 brands run their post-purchase on AfterShip — including Mejuri, AWAY Travel, SKIMS, Gymshark, FIGS, DIME Beauty, Dr. Squatch and more — and we're the infrastructure behind Shopify, TikTok Shop, PayPal, and OpenAI.We've tracked over 11B shipments, processed 16M returns, and connected merchants to 1,300+ carriers worldwide since 2012 — bringing order tracking, shipping, returns, warranty, and AI delivery predictions into one unified system.
- Series B
- 407 employees
- Founded 2012
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4
Knix· Toronto, Ontario, Canada
Knix is an award-winning intimate apparel and activewear brand that is re-inventing intimates for real life. Through our innovative products and our engaged community, we are empowering people everywhere to be unapologetically free. Launched in 2013, we are one of the fastest-growing intimate apparel brands in North America and are globally recognized as an innovator within the apparel space. We reach over 3 million customers through our online stores, Knix retail locations across North America and channels such as wholesale and Amazon. We are revolutionizing the apparel industry with our best-in-class customer experience, innovative products and brands Knix and Kt by Knix. Learn more at www.knix.com or follow our journey @knix and @ktbyknix on social.
- Series B
- 365 employees
- Founded 2013
5
PartnerStack· Toronto, Ontario, Canada
PartnerStack (YC15) is on a mission to change the way companies reach customers through channel sales.PartnerStack enables companies to reach more customers through partnerships. The platform enables some of the fastest growing companies like Asana, Intuit and Freshworks with the tools required to build, manage, and scale channel partner programs. The network brings companies and channel partners together.We pride ourselves on building something people want but our company is more than the feedback we receive from our users. Every member of our team is passionate about learning and adds something unique to our culture. We love to work with people who are consummately curious and are incredibly supportive.Visit us at: www.PartnerStack.com
- Series B
- 359 employees
- Founded 2015

6
Zensurance· Toronto, Ontario, Canada
Founded in 2016, Zensurance.com is an online insurance brokerage and leading source for small business insurance in Canada. Zensurance empowers small business owners, entrepreneurs, independent contractors, and self-employed professionals across hundreds of industries to shop and get the specialized coverage they need in just a few minutes.Through their highly regarded client support team and network of over 50 insurance providers, Zensurance provides customers with industry-leading premium savings of up to 35% off and the confidence to thrive in today’s market.
- Series B
- 307 employees
- Founded 2016
7
Maple· Toronto, Ontario, Canada
About MapleMaple’s purpose is to meet the world's healthcare needs. We’re Canada's leading on-demand healthcare platform, connecting patients with Canadian-licensed doctors, nurse practitioners and specialists. Today, we’re proud that over 8 million patients and 7,000 businesses and government partners have access to same-day, proactive and ongoing care. We empower people to take control of their health and push the boundaries of what’s possible every day. Bold minds. Big Impact. A career at Maple is about making an impact. We empower bold thinking. We surround you with an inspiring team. We’re driven by a motivating purpose. At Maple, you’ll do work that changes lives — including your own.
- Series B
- 262 employees
- Founded 2015
8
CloudTalk· Toronto, Ontario, Canada
At CloudTalk, we're transforming how small and growing businesses manage business calls. As a leading provider of global AI-powered calling software, we help over 5,000 businesses connect with their customers in 160+ countries with clear and reliable communication.Our business calling software integrates seamlessly with your existing systems, offering crystal-clear call quality, AI-powered analytics, and top-notch dialers and CTIs that help teams make MORE and BETTER calls.We believe in teamwork, innovation, growth, and putting people first. Our mission is to build the world's most capable AI business calling software for sales and support teams to seamlessly connect with their customers, all while delivering the best experience to our customers, community and the incredible team of CloudTalkers we're proud to call our own.💙Whether you're expanding outbound sales, supporting your customer service channels, or replacing traditional phone systems, CloudTalk is here to help you grow and succeed on a global scale.
- Series B
- 225 employees
- Founded 2016
9
Fable· Toronto, Ontario, Canada
Fable moves organizations from worrying about compliance, to building exceptional, accessible user experiences.The best digital teams work with Fable to make products more accessible for over 1 billion people who live with disabilities.
- Series B
- 219 employees
- Founded 2018
10
Smartness· Arco, Trentino-Alto Adige, Italy
We’re transforming the lodging industry with AI. Our mission is to help properties break free from OTAs and manual online operations, enabling them to unlock their full revenue potential through full automation.We envision a world where every lodging business becomes a fully independent powerhouse—free from intermediaries and time-consuming tasks, and empowered to grow on its own terms.Smartness is the path to operational independence (from OTA and manual tasks).Discover how we can help you achieve it.
- Series B
- 205 employees
- Founded 2020

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Find engineers at Series B companies in Toronto

Series B companies in Toronto are some of the fastest-moving employers in the market. The list above ranks the largest Series B-stage companies headquartered in Toronto by current headcount, drawn from public LinkedIn and Crunchbase records. With 70 matching companies in Refolk’s index, the density of senior engineers, designers, and founders is unusually high.

At Series B, teams tend to be small, ambitious, and on the hunt for senior talent. The companies on this list are good signals for where the Toronto talent market is heating up - and for which engineers and founders are about to become tomorrow’s operators.

Refolk converts this list into a live search. Ask for “founders of Series B companies in Toronto” or “senior engineers at Series B companies in Toronto hiring” and Refolk returns a ranked shortlist with evidence behind each match.

How this list is built

Refolk pulled Series B companies headquartered in Toronto from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 16:03:40 GMT

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The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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