Many Chinese B2B companies are experiencing a familiar contradiction:

The number of ad clicks is increasing, and the website visits are also good, but the real inquiries have not increased synchronously. When salespeople finally receive customer emails, they often already know what the company does and have even compared several competitors.

This indicates that a common assumption is becoming invalid:

Without form submission, there is no real demand.

In fact, form submission is usually not the beginning of a buyer's journey, but may only be the moment when a business first sees a buyer. Buyers may have made numerous judgments through AI tools, search engines, industry communities, third-party reviews, LinkedIn content, peer recommendations, and internal company discussions.

This part is invisible and difficult to attribute, but it affects the process of supplier shortlisting and final selection, which is the “dark funnel” of B2B.

What is a B2B dark funnel?

Dark funnel is not a mysterious new channel, nor is it a marketing concept of a certain platform. It refers to activities that have a real impact on procurement decisions but usually do not appear in CRM, advertising backends, or website forms.

Typical scenarios include:

• Buyers use AI tools such as ChatGPT and Perplexity to search for suppliers and compare solutions;
• The technical leader inquires about peers on LinkedIn, industry communities, or private domain groups;
• The procurement team reviews evaluation platforms such as G2, TrustRadius, and Capterra;
• Buyers read industry media, analyst reports, and third-party case studies;
• An internal supporter forwarded your product page to the technical, financial, or management team;
• Procurement, technology, finance, and senior management discuss supplier risks within the company;
• The customer got to know you through peer recommendations, but did not click on any traceable links.

These behaviors are not completely invisible, but cannot be directly read by a single platform. Enterprises need to gradually infer what buyers did before formal contact through customer interviews, sales feedback, brand search, direct traffic, content interaction, and qualitative research.

Therefore, the core issue of the dark funnel is not “how to track all behaviors”, but rather:

Can the buyer understand, verify, and recommend your company before leaving their contact information?

The buyer journey is no longer about “advertising form sales”

The traditional B2B lead logic is usually:

See advertisement → Visit official website → Fill out form → Sales follow-up → Enter business opportunity

This path still exists, but it can no longer fully explain today's overseas procurement behavior.

Some B2B studies have shown that buyers typically have already completed their initial contact with suppliers The procurement process of 61%For other studies targeting different markets and categories, the proportion is placed around 70%–80% Within the scope. Their sample, industry, and research definitions are not entirely consistent, so these numbers should not be considered as fixed predictions for every industry.

But the direction is very clear: buyers are increasingly completing research, comparisons, and internal arguments independently.

Research on the Buyer Experience of 6sense in 2025It shows that when buyers first contact suppliers, they have already completed an average of approximately 61% of the procurement process. At the same time, Machine Relations B2B AI Research in 2026display

• The B2B buyer of 94% has used AI in their most recent purchase;
• 55% uses AI to compare suppliers;
• 54% uses AI to research products;
• 47% uses AI to establish internal business justification.

G2's analysis of 1076 B2B decision-makers and procurement influencers Research in 2026It shows that B2B software buyers of 51% are more likely to start software research from AI chat tools rather than Google.

These data do not mean that search engines, official websites, or sales have lost their effectiveness, but rather indicate that their position in the buyer journey has changed. Buyers may first form preliminary judgments in AI and third-party environments, then visit the official website to verify information, and finally contact sales.

The Three Levels of the Dark Funnel

1. AI assisted research: Brands may be excluded before being visited

Overseas buyers using tools such as ChatGPT and Perplexity are not just looking up a definition. They may continuously raise a series of questions:

• Which suppliers are suitable for a certain industry or application scenario?
• What are the differences between three to five options?
• Which company is more suitable for medium-sized enterprises?
• What are the implementation cycle, integration difficulty, and common risks?
• Which suppliers have real customer cases?
• How to explain the return on investment of this procurement to the finance and management team?

This means that AI is helping buyers create shortlists, summarize product information, compare suppliers, and form internal business arguments.

If a Chinese company has the following issues with its information in the overseas digital environment, it may lose the opportunity before its official website is accessed:

• The company's positioning is too broad, only stating “global leader”;
• The product name, industry application, and company introduction are inconsistent on different platforms;
• Lack of English technical materials, implementation instructions, and customer cases;
• Only functional parameters, without explanation of applicable scenarios and business results;
• There is no third-party source to verify the company's claimed capabilities;
• AI cannot determine who a product is suitable for, nor can it explain which scenarios are not suitable.

AI will not automatically understand the “real strength” of enterprises. It can only be summarized based on publicly available, verifiable, and mutually consistent information. If there is missing information or conflicting statements on different pages, it is difficult for the brand to be accurately included in the answer.

2. Peer and third-party verification: The official website's self description is no longer sufficient

When Chinese companies go global, the common practice is to first build a good official website, and then bring traffic through advertising and exhibitions. This is necessary work, but incomplete.

Overseas buyers usually also seek external evidence:

• G2, TrustRadius, Capterra and other evaluation platforms;
• Industry media and vertical communities;
• Discuss with clients, engineers, and industry professionals on LinkedIn;
• Private messages and non-public recommendations among peers;
• Analyst reports, podcasts, conference content, and third-party case studies;
• How other clients describe your delivery, response, and implementation capabilities.

This is not to say that Chinese buyers are completely different from European and American buyers, nor is it to say that a certain market only trusts third parties. The real differences often come from differences in procurement risks, industry standards, information sources, and decision-making processes.

In B2B procurement with high unit price, long lead time, or involving system integration, buyers need to confirm not only whether the product can be used, but also:

• Whether the supplier is stable;
• Can the project be implemented on time;
• Is cross time zone support reliable;
• Whether data, compliance, and security are guaranteed;
• Who is responsible for solving problems when they arise;
• Does the supplier understand the actual workflow of this industry.

Therefore, “strong product parameters” cannot automatically translate into trust. What the overseas market needs is a set of evidence that can be forwarded, cited, and cross validated by buyers.

3. Internal consensus building: Just because one person likes it doesn't mean the company will make purchases

B2B procurement is rarely completed independently by one person. An internal supporter, even if they approve of your product, needs to persuade other stakeholders.

The evidence that different roles focus on is not the same:

• technical teamCare about compatibility, integration methods, performance, and maintenance;
• procurement teamCare about supplier qualifications, contracts, delivery, and bargaining space;
• finance teamCare about total cost, return cycle, and budget rationality;
• operations teamCare about implementation complexity, training, and daily use;
• ManagementCare about strategic value, supply stability, and risk of failure.

If all the content is just product introduction, it will be difficult for internal supporters to push consensus. Truly useful materials should be easily forwarded to different roles and able to answer their respective questions.

The logical clues that Chinese companies are prone to fail when going global

The marketing and sales experience formed in the Chinese market is valuable, but it cannot be directly copied to the European and American markets without adjustment. The most common failure modes include:

If the buyer has a demand, they will contact immediately

Overseas buyers may spend weeks or even months conducting research, especially in the fields of industrial equipment, enterprise software, and technology solutions. No form does not mean no requirement; Sometimes it just means that the buyer is not ready to reveal their identity.

Excessive emphasis on form volume and low-cost leads

Low cost leads can prove that the advertisement has received a response, but cannot prove that the market has formed effective demand. The more important issue is whether these clues have entered the target industry, whether there is a budget, and whether they can drive procurement internally.

If you think the product is good and the parameters are strong, there is no need to reinterpret its value

Technical advantages are only valuable when buyers understand their business significance. Overseas customers may not be familiar with the brand background, supply chain capabilities, or industry status in the Chinese market, so it is necessary to reinterpret application scenarios, delivery methods, and risk boundaries.

Directly copying the relationship building methods and channel rhythms of the Chinese market

Relationships, exhibitions, agents, and sales visits are still important, but their roles and rhythms vary in different markets. Overseas buyers may first establish basic judgments through public information and peer feedback before deciding whether to accept sales communication.

Only advertise once or participate in one exhibition

Advertising and exhibitions can bring attention, but they cannot replace sustained digital trust assets. The company information that buyers see at different times and on different platforms should be able to mutually verify, rather than resetting after each event.

How to make brands easier to understand, verify, and recommend in the dark funnel?

The foundation can be established from the following aspects:

1. Unified Core Information
   Ensure that the company, products, target markets, application scenarios, implementation methods, and capability boundaries are posted on the official website LinkedIn、 Maintain consistency between third-party platforms and sales materials.

2. Organize content around real buyer issues
   Don't just write “What features do we have”, but also answer: How do we compare suppliers? How long does it take to implement? What are the common risks? What scene is not suitable? What needs to be prepared before purchasing?

3. Add external evidence
   Reduce buyers' reliance on one-sided self description through industry media, customer cases, third-party reviews, expert content, and independent mentions.

4. Make professionals a trusted source of information
   The LinkedIn content of founders, engineers, sales executives, and industry experts is usually easier to understand and share than promotional information on the company's homepage. The content does not need to be frequently promoted, but should explain industry issues, implementation experience, and judgment standards.

5. Prepare internal materials for role-playing
   Prepare materials for technical, compliance, procurement, financial, and management versions separately, so that internal supporters can quickly find content suitable for forwarding.

6. Incorporate customer interviews and sales reviews into daily mechanisms
   Ask the customer what they have researched before contacting, which suppliers they have compared, which information has influenced their judgment, and why other options have been excluded. These answers often explain the reasons for transactions better than the source of the form.

Check if the dark funnel is coherent using LINK Framework

Lai Rui Huan Lue's LINK Framework It can serve as a practical diagnostic framework. It is not a specific channel technique, but rather checking whether the overseas demand system is compatible with each other.

Language | Language

Can overseas buyers and AI clearly understand:

• Who do you serve;
• What problem is being solved;
• What are the differences with other suppliers;
• What scenarios is the product suitable for, and what scenarios is it not suitable for.

Intent | Intention

Do the content and action requirements match the buyer stage?

For buyers who are just starting to research, it is often too early to directly request a “pre order demonstration”. Buyers in the comparative stage need supplier comparisons, implementation explanations, and customer cases; Buyers in the decision-making stage require commercial terms, risk statements, and internal justification materials.

Narrative | Narrative

Have you provided sufficient evidence to enable internal supporters to push for consensus?

Narrative is not just a brand story, but also includes why customers choose you, how the project is implemented, what problems are encountered, how to control risks, and why different stakeholders can accept this decision.

Dynamics | Kinetic Energy

Content, sales CRM、 Is the customer feedback and update mechanism continuously operating?

If the salesperson knows the buyer's repeated questions but does not provide feedback to the marketing team, the content will not improve. If the official website is not updated for six months, case studies and product information will gradually lose credibility. The dark funnel requires continuous maintenance, not a one-time event.

Sales are still important, but the way sales get involved has changed

A dark funnel does not mean that sales are unimportant. AI can help buyers screen suppliers, compare functions, and summarize information, but it cannot replace judgments in complex procurement.

When the requirements are not clearly defined, stakeholders have different opinions, the plan needs to be customized, or commercial terms and implementation risks need to be coordinated, people are still irreplaceable.

The sales team needs to reduce the repetition of product introductions on the official website and provide more:

• Judgment of specific customer scenarios;
• Explanation of implementation risks and boundary conditions;
• Explanation of the trade-offs between different options;
• Coordinate the opinions of internal stakeholders;
• Contextual assessment of commercial terms, delivery, and long-term cooperation.

In other words, sales should not only appear when buyers first hear about the company, but should help them transform information into executable decisions after completing basic research.

Common mistakes

• Optimize only the number of forms and the number of scheduled presentations;
• Treating AI visibility as an isolated vanity indicator;
• Neglecting the internal consensus of technology, procurement, finance, and management;
• Replace clear positioning and credible evidence with a large number of general articles;
• Believing that placing paid advertisements can automatically obtain natural recommendations from AI;
• Misunderstanding advertising exposure as being able to buy quotes and recommendations from organic AI answers.

Paid advertising can bring access and awareness, but it will not automatically change AI's natural response to the brand. Whether AI accurately understands your enterprise depends on the completeness, consistency, structure, and external credibility of publicly available information.

Dark funnel self inspection checklist

It is recommended that the management, marketing, and sales teams of Chinese enterprises jointly inspect every quarter:

• Is the information accurate when buyers ask AI “What does this company do?”?
• Is there any evidence that buyers can cite when comparing 3-5 suppliers?
• Are there any third-party mentions, genuine evaluations, or customer cases in the target industry?
• Can technology, procurement, finance, and senior management find the required information separately?
• Does the sales record the content that the buyer has researched before formal contact?
• Official website LinkedIn、 Are third-party platforms and sales materials consistent?
• Are key products, cases, certifications, and company information updated quarterly?

Frequently Asked Questions

What is a B2B dark funnel?

B2B dark funnel refers to research and discussions that occur outside of public forms, CRM, and sales contacts, but can affect procurement decisions, such as AI queries, peer recommendations, industry community communication, third-party evaluations, and internal consensus building within the enterprise.

How much do buyers usually research before contacting suppliers?

Different studies vary depending on the sample, market, and category. Some studies have shown that buyers have already completed a procurement process of approximately 61% when they first contact suppliers; Other studies have suggested a range of approximately 70%-80%. These are not fixed proportions for every industry, but they all point to the same trend: supplier contact often occurs in the later stages of research.

How can Chinese B2B enterprises improve visibility in AI search?

First, ensure that the public information is accurate, consistent, and structurally clear, and then supplement specific application scenarios, comparison standards, implementation instructions, customer cases, and third-party evidence. Do not promise rankings, citations, or recommendations, as AI output may be affected by issues, sources, timing, and market environment.

Does a dark funnel mean that sales are not important?

No. Sales are still responsible for handling complex requirements, stakeholder conflicts, customized solutions, commercial terms, and implementation risks. The change is that sales need to provide judgments after buyers have completed basic research, rather than repeating official website content from scratch.

What should companies change first?

First, check the consistency of information and clarity of positioning: whether buyers can understand who you serve, what problems you solve, why you are trustworthy, and how to evaluate you in a few minutes. Without this foundation, adding advertisements, content, or tools usually only amplifies chaos.

Enterprises do not need to make every buyer's research process traceable. A more realistic goal is to make the brand easier to understand, verify, and recommend before the buyer formally contacts.

For Chinese B2B companies entering the European and American markets, this means that overseas marketing should not only focus on “obtaining more leads”, but should gradually establish a digital trust system that can be understood by AI, peers, and different roles within the company. Lairui Huanlue has been helping Chinese B2B teams establish overseas digital trust and internal marketing capabilities for a long time. The relevant ideas can be seen incompany website。

The truly effective growth is often not about getting all buyers to contact you immediately, but about having suitable buyers have sufficient reasons to consider you before contacting you.