In October 2023, Tal Hayek announced that he was ready to hand over the company he had helped build. AcuityAds had become illumin. The product he had spent years describing was now the name on the business. A successor would take the chief executive’s chair; Hayek would move to the board as non-executive vice chairman. There was a pleasing symmetry to it: build the machine, teach it to run, step away from the controls.
By April 2026, he was back at the controls. The board reappointed him CEO after Simon Cairns stepped down. Between those two announcements sits a more interesting story than the familiar founder’s farewell. Hayek had spent years arguing that advertising needed a better way to connect a plan with what actually happened. Running the company that sold that promise had proved to be its own exercise in changing the plan.
The recurring object in his explanations is a whiteboard. Marketers can sketch how a stranger becomes a customer. Carrying that sketch into the machinery of digital advertising is where things get awkward. Hayek’s ambition was to preserve the drawing all the way through execution. A reasonable request, you might think. Advertising technology has found many ways to make reasonable requests expensive.
The first exit came early
His documented entrepreneurial story begins in 2004 with IncentAclick, a business built around lead generation and customer acquisition. It was sold to a public company in 2006. Hayek stayed for another two years, helping the business grow. The sequence gave him experience on both sides of an exit: founding something and then continuing to work inside a larger organization after the transaction.
In 2009, he co-founded AcuityAds with Nathan Mekuz, Rachel Kapcan and Joe Ontman. The group brought different parts of the advertising problem together. Mekuz worked on machine learning; Kapcan built and led engineering; Ontman brought business development. Hayek became CEO. The company’s subsequent story belongs to that combination of technical work, selling and management, even when the chief executive was the person explaining it to investors.
Public markets arrived in 2014. At the time of the planned listing, AcuityAds had more than 50 employees and over 160 active clients. Its pitch already reached beyond placing an ad: advertisers should be able to connect the initial impression with sales. Hayek was trying to make the intervening steps visible, a concern that would survive several rounds of product development and a change of name.
Expansion also meant buying capabilities. In 2016, AcuityAds acquired social-data advertising company 140 Proof for up to US$20 million. Hayek described acquisitions as a way to add components the company lacked and compete with larger businesses faster. There was little mystery in the ambition. Growing at the pace available internally was taking too long for his liking.
The whiteboard had the better interface
That same year, Hayek wrote an opinion column about marketers struggling to use their data. “Programmatic advertising is a victim of its own hype,” he wrote. He wanted vendors to deliver flexibility, useful real-time reporting and integration. The complaint was directed at an industry in which the explanation could become harder to understand than the customer’s original problem.
There is an amusing hazard in selling clarity for a living: every additional acronym becomes evidence against you. Hayek’s argument was practical. A marketer needed to change a campaign before its outcome was settled. Data stranded in separate systems made that harder. The value lay in what someone could understand and do while the campaign was running.
Illumin launched on October 1, 2020. Its visual workspace let marketers map a consumer journey and execute it through the same platform. Think of the familiar sequence of awareness, engagement and conversion. The proposal was to make those stages something a person could operate, with creative and audiences connected on a canvas. A diagram would carry working instructions, rather than merely decorate the meeting.
The first commercial response arrived faster than the company had expected. Illumin generated more than C$1.5 million in revenue during the final quarter of 2020, within 90 days of launch. Management had originally expected the product to affect overall performance meaningfully in the second half of 2021. Demand brought that timetable forward, along with the need to expand the team supporting it.
On a 2021 investor call, Hayek relayed a story from the sales team. A senior agency executive had been reluctant to take a meeting. Partway through, the executive became interested in the ability to plan and activate the journey together. It was a founder’s account of a sales encounter, but the detail explains the desired reaction: recognition of a familiar problem, followed by the prospect of fewer handoffs.
Selling a tool meant changing the shop
A good demonstration does not reorganize a company. AcuityAds had years of experience selling managed advertising services. Getting customers to use a platform themselves required different contracts, different selling habits and attention to what happened after the signature. The new interface made the customer’s task more coherent. Internally, it created plenty of work.
Discussing the transition after 2022, Hayek acknowledged the struggle. The business brought in a sales leader with Salesforce experience and a background in longer-term contracts. Selling short campaign orders and building a pipeline of software customers demanded different routines. Leadership changes and sales organization became part of the product story because the product could not distribute itself.
The operating vocabulary became unusually specific: demonstrations, signed contracts, activation, spending. These were separate events. In early 2023, a surge in customer onboarding exposed limits in the company’s ability to get people trained and active. Hayek said the problems had been addressed during the quarter. A new customer needed to begin using the system before the anticipated revenue could follow.
His public language often gives the people doing this work collective billing. He thanks the Acuity family, later the illumin community, at investor presentations. Whatever the scale of the product ambition, his descriptions keep returning to teams, recruitment and the process of helping customers succeed. The repeated thanks sit beside less ceremonial questions about who is ready to start spending.
The product took the name
In 2023, AcuityAds adopted illumin as its company name. Hayek had backed the product strongly enough to put it over the door. Renaming a public company makes the strategic emphasis hard to miss. Every introduction now began with the same word as the platform the business wanted customers to use.
The year also brought a less celebratory decision: leaving Nasdaq. Hayek described that choice as personally difficult, while explaining that the expense was substantial for a business of illumin’s size. It was a revealing limit to the expansion story. A listing could represent ambition and still impose costs that management decided it should no longer carry.
There had been public milestones worth celebrating. AcuityAds won Cantech Letter’s 2016 TSXV Canadian Tech Stock of the Year award, presented in January 2017. In 2019, the company passed C$100 million in trailing twelve-month revenue. Those were company achievements during his tenure, markers of how far the four founders’ business had travelled. They did not make the next transformation automatic.
“It is now time for a new leader to take my place”
Tal Hayek, October 2023
A handover, then a return
Hayek’s succession announcement came in October 2023. He expressed gratitude to his co-founders, executives, employees, board, customers and investors. The company began looking for a replacement. This was a planned transition with a continuing board role, allowing the founder to remain involved while someone else took responsibility for day-to-day leadership.
Simon Cairns became CEO on April 15, 2024. Hayek moved to non-executive vice chairman. The separation between those jobs matters: the founder stayed connected to the company without occupying the operating role he had held since its beginnings. The name on the company remained illumin; the name on the chief executive’s office changed.
Then, on April 7, 2026, the board appointed Hayek CEO again. Cairns had stepped down to pursue other opportunities. “I am honored to return to the role of CEO,” Hayek said. The public explanation emphasized the team, platform, strategy and shareholders. The unfinished whiteboard is a way of reading the arc of his work; his appointment put him back in charge of executing it.
The second act has to add up
His stated priorities on returning were concrete: grow demand-side-platform revenue, put greater emphasis on connected television, improve gross margins and reduce selling, general and administrative costs. The language placed execution alongside invention. A clearer campaign interface still had to support a business with workable economics.
The second quarter of 2026 offered progress and a complication. Revenue reached C$50.2 million, up 52% year over year. The Exchange business grew particularly quickly, while managed and self-service revenue also rose. Gross margin fell to 35%, from 43% a year earlier, as the mix of revenue changed. Growth and margin were moving in different directions.
As of October 21, his next public checkpoint was already on the calendar. Illumin had announced a November 5 results webcast with Hayek and interim CFO Michael Amaro. Another set of numbers would follow the return announcement. That is the useful discipline of the story: an idea gets explained, a team works on it, and eventually someone asks what happened.
Hayek’s career keeps circling the gap between intention and action. The marketer draws a route. The sales team wins a customer. The founder hands over a company. Each event begins another process rather than ending the work. Back in the CEO’s chair, he has the same question in a different form: how much of the plan can survive contact with the working day?