Cylex

Imre Papuscan, Product Manager

Oradea, Romania
Logo for Cylex Cylex team meeting
Building the early internet directory

When Imre Papuscan describes the early days at Cylex, he explains how difficult it was for the founders to get information about businesses while the internet was still in its infancy. It was 1997 and the idea of something as common now as online shopping felt like science fiction.

"Not too many people had a computer at home, you see," reflects Imre, who joined Cylex in 2006 as a young developer.

Founded in Oberhausen, Germany, Cylex’s founders had a bold mission for the company: to become Europe's premier online marketplace. But, as the founders soon discovered, “we were too ahead of our time."

That very marketplace was meant to be a place where businesses could list their products, services, even handle online payments. But again, people simply weren’t ready.

In fact, for most consumers back then, handing over their credit card information to some blackbox website felt way too risky.

Once the founding team realized this, they decided to change direction: build an online business directory instead, essentially a more modern version of the yellow pages for that time.

And this revised concept hit it off with users.

But building a business database at the time was all grunt work. “The team had to buy local papers every day and clip them by hand,” Imre explains. The team also scoured CD-ROMs, phone books, and even worked with telecom companies to get data.

“Nothing was online yet, so we typed everything in ourselves and built our directory from scratch,” he says. That painstaking groundwork would become the backbone of Cylex’s first directory.

But their hard work paid off and soon enough, Cylex became an important online resource, connecting customers with local businesses — all without any fees or paywalls.

"The internet democratized information, so we believed business information should be free,” Imre emphasizes.

Plus, the new directory didn’t just list businesses; it also let customers post reviews about them. That way, small businesses could start to build a reputation for themselves online.

Giving everyday shoppers a voice ended up giving Cylex a big differentiator as well. Because of it, consumers could weigh the reputation of a business before making an appointment or purchasing something.

The Cylex team that's behind a trusted business directory
The partnership that changed everything

In those early days, Cylex really leaned into its yellow-pages roots to try and make some money. For example, they charged a fee if a business wanted to be spotlighted as a premium listing, just like the paper books they were replacing.

Then, around the mid-2000s, Imre says the team plugged AdSense into Cylex, and very quickly, realized that an ad-supported business model was the way forward.

“AdSense changed everything for us,” the Cylex team explains. “We didn’t have to charge businesses for listings anymore. That ad money covered the bills, so that we could keep every business listing free. Additionally, the Privacy and Messaging feature from AdSense was instrumental in balancing respect for our visitors' privacy preferences with an effective monetization strategy.”

Set-up was also very simple, especially with Google’s reps walking them through everything. And on top of that, they decided to capitalize on AdSense for Search, letting them show ads in their own search results pages (the same idea Google uses on google.com).

Imre notes that this single tweak “moved the revenue needle more than anything at the time.”

The extra income paid for new developers in Romania and a faster search index, which are investments that still power Cylex to this day.

From that point on, Cylex’s growth came in stages. After proving the concept in Germany, the team folded Austria and Switzerland into the same database. “Those three German-language markets let us reuse content fast,” Imre explains.

Next came new sites (under different domains) for markets like the UK and the Netherlands. But the real step change arrived in 2006, when Cylex opened an office in Oradea, Romania.

Lower taxes and a bigger talent pool let Cylex hire more developers to pitch in. “That was the boom,” he says. “Suddenly we had the people, and the income from ads, to roll out new country sites and even more features.”

“AdSense changed everything for us. We didn’t have to charge businesses for listings anymore. That ad money covered the bills, so that we could keep every business listing free.”
Where ad revenue has taken Cylex, and what’s next

Today, Cylex runs country-specific sites in 32 markets, from the UK and Germany to the US and Hungary.

Imre also says that the 2006 hiring boom shifted most of the developer work to Oradea, Romania, though the servers and a small team still remain in Germany.

“Ad revenue paid for that whole expansion,” Imre says. “It lets us hire more coders, UX designers, and a support crew. That money keeps the lights on and pays for new features.”

And more listings mean more local shops show up in search, and more visitors still get the info for free — a virtuous cycle.

As Imre looks ahead to Cylex’s roadmap, the mission is clear: understand the evolving needs of SMBs and deliver the features that matter most. That means continuously improving data quality, refining the user experience, integrating AI to make the platform smarter and more intuitive, and creating smarter ad spots and efficient advertising solutions to keep the work funded.

“We keep improving,” he says. “Better data, smoother navigation, intelligent tools, and effective advertising not only help businesses thrive — they ensure Cylex remains a trusted, accessible resource for everyone.”

About the Publisher

Imre Papuscan has spent more than 19 years at Cylex: from early database developer to product manager of a directory platform that now spans 32 countries. Drawing on his engineering background and commitment to open access, Imre continues to refine Cylex’s tools so small businesses can continue to succeed online while readers enjoy free access to the information.

Headshot of Imre Papuscan product manager at Cylex