Companies Using Efilli

One disclosure before the data: I know Şefik Yunus Özcan, Efilli's co-founder and CEO, and I interviewed him in May 2026 for the founder series on GrowthMarketing.ai. Company background below comes from him. Every number comes from our own crawl.

Our August 2026 crawl detects Efilli on 986 active domains, of which 602 match a LinkedIn company record, a 61% enrichment rate. Small by the standards of this site, and also the most legible, because nearly every dimension points the same way.

Growth trajectory

Efilli enters our records in 2021 and climbs through 2024. Our current crawl puts it at 986 domains in August 2026, up from 790 in June. Read the long run shape as a trend, not a same domain comparison: the set of domains we crawl turns over monthly, with dead sites dropping out and new ones added, and our detection signals widen over time. The step between 2025 and 2026 reflects changes on our side, both coverage and signals, rather than a jump in adoption.

Near term movement is cleaner, because both ends are measured the same way. Over the 90 days to August 2026 we recorded 89 domains adopting Efilli against 36 dropping it. That ratio describes a product still taking its home market, not defending it.

"What makes Efilli hard to displace is not the banner. It is that a Turkish bank's legal team has already signed off on where the consent logs live." - Emre Elbeyoglu, Growth & AI Advisor at TechnologyChecker.io

Sales Signal: A growing market, but a shallow one. The entire Efilli customer base fits in a single prospecting list, and every row on it already bought a compliance product and already carries the budget line for one.

Customer profile

The size distribution has two peaks, which is the interesting part. 51 to 200 employees is the largest band at 20.9%, with 11 to 50 behind it at 19.5%, reading like an ordinary SMB tool. Then 30.7% employ more than 500 people, which does not. Sorted by headcount, the list opens with Türk Telekom, Migros, Garanti BBVA, İşbank and Akbank.

Ten of those forty are banks. Şişecam, Eczacıbaşı, Hepsiburada, Teknosa and Koçtaş fill in much of the rest of the Turkish corporate index. Efilli publishes no customer logos or case studies, so none of this is vendor confirmed; it comes from our detection data matched to LinkedIn records. Age says these are not startups: 29.76% were founded in the 2010s, but 38.1% predate 2000 and 5.61% predate 1960, which in Turkey means the old industrial and banking families.

Sales Signal: These buyers will not build this in house. A consent platform is a transfer of legal liability, not a feature, so the signature sits closer to the general counsel than the CTO. Lead with the regulator.

Industry and geographic concentration

Turkey accounts for 92.1% of enriched Efilli customers with a country on record, 492 of 534, the tightest geographic concentration I have seen on a profile here. The other 42 sit mostly in the United States and Germany, which in a Turkish context usually means a subsidiary rather than an export motion.

Industry concentrates the same way. Financial services leads at 10.34%, and adding banking and insurance takes the cluster to 16.4%. Hospitality at 8.1% plus travel arrangements at 2.76% gives tourism 10.86%. Those two sectors carry the heaviest KVKK exposure in Turkey: banks because the regulator watches them, hotels because they process passport data for foreign guests. The top ten industries cover only 46.9% of the base, so the tail is genuine, but the head is not random.

Sales Signal: Turkish banking and Turkish tourism are where a privacy adjacent product already has a budget and a named buyer. Filter for Efilli plus a finance or hospitality industry code and every result has proven it will pay for this class of software.

Migration patterns

We have watched 46 domains drop Efilli since we began tracking it in March 2026. That is the entire churn dataset, so read this as directional. Efilli gained 8 domains, three each from OneTrust and Google's Funding Choices and one each from CookieYes and Usercentrics. It lost 9, mostly to Funding Choices and Cookiebot.

Roughly even, and the evenness is the finding. There is no corridor. Nobody is systematically pulling Efilli out for a global platform, and Efilli is not displacing one either. The Funding Choices flow in both directions is probably not a consent decision at all, since that tool arrives with AdSense.

"When churn on a compliance product comes back flat in both directions, the honest read is that nobody is shopping. Consent platforms get replaced during a regulatory scare or a site rebuild, and neither happened this quarter." - Emre Elbeyoglu, Growth & AI Advisor at TechnologyChecker.io

Sales Signal: Low churn cuts both ways. A displacement pitch against Efilli inside Turkey has poor odds here. The stronger play is adjacency: these domains carry an active compliance budget and a named owner, which qualifies them for accessibility auditing, data mapping and DSAR handling.

Technology ecosystem

Google Tag Manager sits on 91.1% of Efilli domains and Google Analytics on 89.79%. That near universal pairing is the category in one line: a consent tool exists to gate a tag manager, which makes Efilli's published Google Consent Mode v2 support a requirement rather than a feature. Facebook Pixel follows at 44.39%, TikTok Pixel at 20.22%.

Two numbers make this stack unmistakably Turkish. Insider appears on 13.14% and Yandex.Metrika on 10.52%, the first an Istanbul founded personalization platform, the second running far above its global share for regional reasons. ASP.NET at 22.24% and IIS at 9.61% point to the Microsoft heavy estates Turkish banks have run for two decades, while Cloudflare at 44.79% marks the newer builds beside them.

Sales Signal: The gaps matter more than the peaks. Hotjar reaches only 10.31% and Sentry 7.18%, so session replay and error monitoring are under adopted across a base of large, well funded organisations.

What the review sites do not tell you

Efilli has no G2 profile, no Capterra listing and no TrustRadius entry. In most categories that would be a warning. Here it describes the sales motion. Şefik told me the first sale into a regulated Turkish account still closes in person, and a company selling that way never accumulates self serve review volume.

So triangulation runs against the vendor's published numbers instead. Efilli states 510 enterprise customers, 3,000+ domains and 114.4 million monthly consents. We detect 986 domains. Both can hold, because our crawl covers a large sample of the web rather than all of it. What our data corroborates independently is the shape Şefik described, banks, telcos, large e-commerce and holdings.

Sales Signal: With no third party reviews in existence, our detection data is the only public evidence of who runs this product. The company list on this page is the reference check.

Key takeaways

1. Market position. #69 globally at 0.03% share, #5 inside Turkey at 492 companies, ahead of Cookiebot, OneTrust and Usercentrics. The national number is the one that means anything.

2. Growth phase. Expanding. 89 adoptions against 36 drops over 90 days.

3. Core customer. A Turkish company of 51 to 200 people in finance, hospitality or retail, founded before 2020, where legal owns the buying decision.

4. Moat. Data residency plus regulatory specificity. Consent records stay on Turkish servers and the product cites KVKK articles 5 and 11 directly. Neither is quick for a global platform to copy.

5. Vulnerability. 92.1% of the base sits in one country, so the ceiling is set by Turkish enforcement rather than by product quality.

Sales applications

Targeting. Filter for Efilli, country Turkey, 200 or more employees. That returns 257 enriched companies, each a regulated Turkish organisation with a compliance owner.

Outreach angle. Open with the benchmark, not the product: this company is one of 95 Turkish financial firms we detect running Efilli, and here is what the other 94 already added. Compliance buyers respond to peer comparison more reliably than to feature lists.

Competitive angle. The eight domains that arrived from OneTrust, CookieYes and Usercentrics are the only companies here that demonstrably changed consent vendors recently, which makes them the shortest route to a conversation about the rest of the privacy stack.

The full list of companies using Efilli, covering all 986 detected domains and 602 enriched profiles, sits on this page. Our Turkish e-commerce statistics report covers the platforms and payment stacks the same brands run.