Dentsu’s 2025 analysis puts Japan’s internet ad spend at roughly 4.05 trillion yen, about 11% higher than the year before, and internet advertising now accounts for more than half of all advertising. Dentsu’s 2025 analysis shows where budgets are moving. If your B2B lead generation plan starts with buying more clicks, you are bidding in the same crowded market as every competitor. I think there is a better route: make your own website the page Japanese buyers already trust, then catch the inquiry the moment it happens.
B2B lead generation in Japan without paid ads depends on three things: a corporate website that answers buyer research questions, downloadable technical content that earns a contact, and fast replies on LINE or WhatsApp. Buyers now research suppliers with search and AI tools before they call sales, so the site has to do the early selling work.
Why is paid acquisition getting more expensive in Japan?
The 2025 numbers show how much budget now flows online. Internet advertising is no longer a side channel, and when that much money chases the same placements, a new paid campaign mostly rents attention from the same few platforms. Rented attention stops the moment the budget does.
Where do Japanese B2B buyers start their research?
Do buyers check the official website first?
A 2026 survey of 196 people involved in B2B supplier selection found that 71% of AI search users check the official website to verify information, 60% use Google, and 40% use comparison sites. The survey is summarized here. The sample covers AI search users, so read it as a picture of where AI-assisted research ends.
A separate HubSpot Japan survey points the same way. According to Webtan’s report on HubSpot Japan’s sales survey, the share of B2B buyers relying on internet search for purchase research fell from 57.7% to 51.3% between 2024 and 2025, while generative AI use rose from 4.3% to 11.7%. Read Webtan’s report. The survey was published in 2026 and fielded in late October 2025. Buyers are still searching, but they are increasingly asking AI tools first.
My working advice is to test this on your own analytics. Look at which pages visitors read in the sessions that end in a contact form or a message, and build your first downloads around those pages.
Why does the website need to do more than brochure work?
A 2026 IDEATECH survey reports that about 80% of B2B purchase decision-makers feel corporate websites only contain generalities, and 57.1% decide who to contact based on how sincerely a company discloses disadvantages and risks. Read the IDEATECH summary.
A TRENDEMON survey from April 2026 found a similar gap. Nearly 90% of BtoB buyers said they fail to find the information they need on corporate websites, and many turn to generative AI first. That survey had 111 respondents at companies with 100 or more employees.
I think most corporate sites still read like brochures, and that is a problem when a buyer’s first stop is a search engine or an answer engine.
How do you build a non-paid B2B lead generation pipeline in Japan?
What should the first download answer?
Build one asset for each real buyer question: a pricing breakdown, a comparison page, a setup guide. Leave the summary open so search engines can index it, and gate only the detailed version. A download should feel like a reward for reading, not a toll for entry.
How fast should you reply?
Speed is the part most teams underinvest in. In one Ongito deployment for my own studio, Soredenacho, a WhatsApp AI agent cut inquiry response time from more than 15 hours to under 30 seconds, with no new ad spend. [INTERNAL LINK: Ongito AI agents overview page]
What does a B2B website lead capture system look like?
| Stage | What it does | Ongito component |
|---|---|---|
| Attract | Owned content answers research questions and ranks in search and AI engines | SEO and AI Search, from $2,100 setup plus $700/mo |
| Capture | A conversational agent on WhatsApp or LINE responds instantly | AI Chatbot Agent, from $2,100 setup plus $560/mo |
| Qualify and route | Leads are scored and sent to a dashboard the sales team uses | Custom CRM and Dashboard, from $4,200 setup plus $560/mo |
| Convert | A lead generation system ties the three layers together | Lead Generation, from $3,500 setup plus $840/mo |
[INTERNAL LINK: Ongito lead generation service page]
How does Ringi approval marketing change what you publish?
Ringi (稟議) is the consensus approval process in which a mid-level employee circulates a written proposal through several managers before a purchase is signed. Ringi approvals move more slowly than a Tokyo ramen queue, which is why your content has to travel with the paperwork.
Buyers also keep their internal discussions private until they agree. A May 2026 survey of 100 B2B buyers by NK Energy System found that 91% take internal actions after a sales meeting, but only 30.8% disclose everything to sales, and over 60% stay silent to avoid sharing information before reaching an internal consensus. Read the NK Energy summary. Your content may be the only thing that reaches the rest of the committee, so it has to make sense without you in the room.
A champion inside the buying company needs material that survives being forwarded to five people who never met your sales team. A single page with clear pricing, a comparison table, and case evidence lets that champion forward one link instead of rebuilding your pitch.
What goes wrong with vague pricing?
Vague pricing forces the champion to request a custom quote at every stage of circulation, which stalls the decision. Publish ranges or a clear starting price, even if final quotes stay custom.
Does Japan’s privacy law limit APPI retargeting for B2B sites?
Yes, in specific ways. Japan’s Act on the Protection of Personal Information (APPI) created a category called personally referable information, which includes cookie and location data. According to the Lexmundi Japan privacy guide, a business that collected this data must confirm that the recipient has the individual’s consent before passing it on to a third party who could identify that person.
A new route is in progress. A draft from the Personal Information Protection Commission secretariat, dated October 1, 2026, would add a route that lets a business provide data to a third party without consent when the data is used for statistics creation. Coverage of the draft is here. The draft has no effective date, so do not plan around it yet.
I find it simpler to build around conversations the visitor starts, though that is a practical preference, not a legal conclusion. This is not legal advice. Get counsel before you build pixel-based retargeting into a Japan plan.
What mistakes should you avoid?
- Treating Japan as a channel swap. Moving Meta budget into Google Ads without rebuilding content and capture leaves the core problem in place.
- Writing for one decision maker. The document will pass through several reviewers with different priorities.
- Leaving pricing vague. It forces an extra round of quote requests at every approval step.
- Adding tracking before consent. Check the consent flow before you install retargeting pixels.
What should you do this month?
- Audit your five most-visited pages and ask whether each one contains a single answer a buyer could forward.
- List three technical questions your sales team hears every week, and publish a page for each.
- Send a test inquiry to your own WhatsApp or LINE channel at 9 p.m. and time the reply.
- Review your consent flow before adding any new tracking pixel.
Frequently asked questions
Can a B2B company in Japan generate leads without paid ads?
Yes, but it takes deliberate content and a fast response system. Owned content that answers buyer research questions, plus downloadable technical material and quick replies on LINE or WhatsApp, can produce qualified conversations without bidding in paid auctions. Expect the work to compound over months rather than days.
Do Japanese B2B buyers research online before contacting sales?
Yes, and the 2026 data suggests they start with the official website. In a 2026 survey of people involved in B2B supplier selection, 71% of AI search users checked the official website to verify information. Your site is often the final check, so it needs clear answers and evidence.
Does the APPI allow retargeting pixels for Japanese B2B sites?
Under the current APPI, passing personally referable information to a third party who can identify a person generally requires that person’s consent, and the sender must confirm it was obtained. A 2026 draft would add a consent-free route for statistical use, but it has no effective date yet. Get legal advice before you build retargeting into your plan.
What is Ringi, and why does it matter for B2B marketing?
Ringi (稟議) is the Japanese consensus approval process in which a proposal circulates through several managers before a purchase is approved. Marketing matters here because an internal champion needs material that survives being forwarded. A clear page with pricing and case evidence can carry a deal through approval better than a sales deck.
Where to start
B2B lead generation in Japan without paid ads is a system, not a campaign. Build a website that answers buyer questions, earn contacts with useful downloads, and respond in seconds on the messaging apps buyers already use. A solid Japan B2B lead generation program starts with one page a buyer could forward today.