It Takes More Than the 'Oprah Effect' to Sell Out a Conference With 6 Months to Go

Nordic Business Forum (NBF) 2026, set for September 16–17, sold out on March 20 — six months before the event opens its doors. All 8,500 tickets are gone, a thousand more than the previous year.

Headline speaker Oprah Winfrey is a big draw, with her impact felt even long after the Oprah Effect boosted sales of brands endorsed on long-running "The Oprah Winfrey Show." 

But it takes more than booking pricey speakers to sell out a business event this far in advance. For event marketers wondering how that happens, the answer is less about magic and more about mechanics.

The Moment That Matters

"Our biggest marketing push happens at the end of the previous event," said CEO Hans-Peter Siefen, who co-founded the event in 2009.

Just before the final speaking block on day two of the previous year’s event, NBF announces the following year's dates, themes, and speakers on stage — with more than half the lineup already confirmed. There is no detailed agenda. The focus is on big names and a simple message: buy now at the best possible price, for a very limited time.

Following the 2025 event, 5,414 tickets sold within days — more than half of the total capacity gone swiftly.

The practice dates back to the early days of the event. In 2010, the team had already confirmed Al Gore as a headliner for the following edition and made the announcement public on the first day of the event. It has been a cornerstone of the event's marketing strategy ever since with Barack Obama in 2018 and George Clooney in 2022 among past headliners.

Supporting the speaker-led marketing is a very hands-on sales operation. Of the roughly 3,000 tickets sold after the initial burst, 75% were closed through meetings, calls, and emails. Only 25% came through the website, thanks to marketing, earned media and word of mouth. "Proactive sales is a very important sales channel for us," Siefen said.

Cornerstone Speakers

The event’s significant investment in big-name speakers goes against a trend to forego keynote speakers in favor of subject matter experts in specific verticals.

But Siefen is himself a fan of high-impact business events. Winfrey was booked after he went to see her speak at a Brussels event where she delivered the “speech of the year.” He’s hoping she will have the same impact on NBF 2026 attendees.

For NBF, speaker fees are the second-highest budget line item, trailing staff salaries but surpassing catering and audiovisual production costs. That level of investment is what makes booking Winfrey possible.

This year’s roster also includes entrepreneur and podcaster Steven Bartlett, Grit author Angela Duckworth and several more speakers described on the website as “world-class thinkers and doers on stage.”

One cost-saving strategy that enables the event to attract big-name speakers is sharing speaker fees and travel costs with the event’s sister events Oslo Business Forum (OBF) and Amsterdam Business Forum (ABF) which run on overlapping dates. "We can negotiate the fees, and we can attract people who wouldn't otherwise make the travel," Siefen said.

Setting the Stage

Beyond the crucial moment for ticket sales and the appeal of well-known keynote speakers, there is a carefully planned marketing strategy leaning on the power of brand recognition that took years to build. 

NBF is a two-day business leadership event held annually in Helsinki, with a mix of local and international audience — 3,200 of its 8,500 attendees travel from abroad. It is on track to generate roughly $11.5–13.8 million (€10-12 million) in revenue this year.

Following the initial agenda announcement and marketing push, four price increases accompanied by related marketing campaigns keep urgency alive. Each increase is worth $115–345 (€100–300) for a standard ticket price of $1,741 (€1,490) plus tax. This year only three increases were needed.

The venue's capacity cap of around 9,000 also means scarcity is real rather than manufactured. But a sold-out event doesn't mean revenue opportunities are exhausted. Sponsorship packages are still being sold, and the livestream — which generated almost $1 million last year — represents a significant additional revenue stream with minimal incremental cost per ticket sold.

Online marketing still plays a crucial supporting role across the cycle. NBF runs a complex web of online ads including targeting specific audiences on LinkedIn — a premium channel for online marketing. Physical advertising, including newspapers and airport billboards rounds out an unusually broad media mix for a B2B event brand.

None of this works without 17 years of brand equity behind it, something Siefen highlights as the main reason for this year’s record sales.

The annual NBF was founded in 2009 as a small Finnish-language seminar series in Jyväskylä. International growth aided by a switch to English in 2013 and a move to Helsinki in 2014. Attendance jumped from 3,300 to 5,200 in that first year in the Finnish capital.