How to find B2B customers in Germany

Company data for the German market is public and easy to reach. The Handelsregister holds legally binding company records, the business register of the Federal Statistical Office describes the structure of the market, B2B directories such as wlw list supplier profiles, the chambers of commerce run regional member databases, and the Bundesanzeiger publishes annual accounts. You can build a target list in an afternoon. None of that decides whether you sell anything in Germany. What decides it comes next: working out who inside the company actually owns the problem, getting past the switchboard, having a reason to call that holds up in German, and reading the first conversation correctly.

Where German company data actually lives

Each source answers a different question, and none of them answers all of it. In practice you combine them: one source for the size and shape of the market, one for the specific companies, one for their financial scale.

Before you build the list, look at the shape of the market. The business register of the German Federal Statistical Office recorded around 3.5 million legal units in 2024. 84 percent of them have fewer than ten employees. By legal form that breaks down into roughly 2,062,752 sole proprietorships (58.21 percent), around 861,720 corporations (24.32 percent) and around 440,951 partnerships (12.44 percent).

Those numbers change how you plan the first call. In a sole proprietorship you speak to the owner, and the decision happens in the conversation or not at all. In a company with three hundred employees you speak to the technical department first, procurement second, and you may never meet the managing director. Foreign teams often build one script for one imagined buyer, then find that most of the market does not look like that buyer at all.

For the list itself, the Handelsregister tells you who is entitled to represent a company, what the legal form is and where it is seated. The B2B directory wlw, formerly Wer liefert was, carries around 620,000 registered suppliers and is strong when you search by product and capability rather than by legal form. The IHK databases help when your target segment is regional, and the Bundesanzeiger tells you whether a company is the size your offer assumes.

Why a German business directory gives you a list, not a pipeline

Addresses are cheap. Any competitor can pull the same selection within the hour. The advantage sits in four steps that follow, and none of them can be automated.

1. Identify the person who owns the problem. Not the job title on paper. In one company that is the technical manager, in the next it is procurement, in the third it is the owner.
2. Reach that person. The switchboard and the assistant filter reliably, and they filter on the reason for the call rather than on charm. If you cannot state one in a sentence, you are routed politely to nowhere.
3. Have a reason. A reason is something happening in that company now: a new line, a supplier change, a standard, a bottleneck. A product advantage is not a reason.
4. Read the first conversation. This is the expensive step. A wrongly read call either loses a customer or occupies your sales team for weeks.

Those four steps are what B2B lead generation actually consists of. The list is preparation. What comes out of it depends on lead qualification, and on whether the meeting is one your own salespeople want to take. How that chain is put together is described on our process page.

How German B2B buyers actually decide

When outreach into Germany fails for a foreign company, the offer is rarely the reason. The way the approach is made usually is.

• Language is a condition, not a courtesy. Outreach in German is what allows the conversation to start at all. Opening in English narrows your audience to the people who happen to be comfortable in it, and that is not the same group as the people who decide.
• Formality carries weight. The formal Sie, correct salutation with titles, a clean written follow up. Moving to first names quickly reads as unserious rather than friendly.
• The switchboard and the assistant really do filter. Nobody reaches a decision maker without a concrete reason for the call.
• The technical check usually comes before the commercial one. The department decides whether it fits at all, and the commercial discussion follows. Opening with price means talking to the wrong person.
• Decisions involve more people and take longer. That is not disinterest. It means your follow up rhythm has to match their process rather than your quarter.
• References beat promises, and they get checked. A German buyer verifies. An honest answer about what you have and have not done before travels further than an evasive one.
• Data protection and compliance come up in the first contact. Where you got the number and how you handle the data is an opening question, not a closing detail.
• Trade fairs are still a serious channel. A list collected at a fair decays quickly without systematic follow up.

This is why a first push into Germany rarely fails on the product. It fails on the first line of contact. Our market entry sales support and the page on the German market describe how we set that line up with native German speakers, without you opening a local office.

What German law allows when you approach companies

Advertising outreach in Germany is governed by the Act against Unfair Competition. For telephone advertising directed at businesses, Section 7 (2) no. 2 UWG requires at least presumed consent. The call has to be objectively expectable, because it fits the business purpose of the company you are calling. For advertising by email the standard is stricter: prior express consent is generally required, in B2B as well.

In practice that makes target selection part of the legal question. If you have narrowed the list by sector and plausible need, you can explain why the call was expectable. If you dial an unfiltered list, you cannot. We have written up the detail, including what presumed consent means in practice, in a separate article on whether B2B cold calling is legal in Germany. How we structure cold calling within that frame is set out there as well.

When to sell to German companies yourself and when to use a local first line

There are cases where an external partner adds nothing, and it is fair to name them.

• A small target list. If your German segment is forty companies, those forty conversations belong to you. They are too valuable to delegate.
• An existing network. If you already have contacts in the segment, a referral beats any first call.
• German speakers already on your team. If you have them and they have time, use them.

An external first line pays off when the target list is large, when your own salespeople carry the day to day business and first contact keeps slipping, or when nobody on the team speaks German well enough to run a first conversation that a German buyer takes seriously. In those cases the partner handles volume and your salespeople only see what has been qualified, through appointment setting that ends in a dated next step.

DialFox does not work inside your CRM. We run our own system and hand over in a structured form: contact and role, the notes from the conversation, the trigger, and the agreed next step with a date. Whether the numbers work for your segment is usually clear after one consultation.

If the approach still stalls after all of this, the article on why foreign companies fail in Germany even with a good product covers what usually goes wrong next.

FAQ on finding B2B customers in Germany

Which German business directories are worth using?

There is no single one. The Handelsregister gives binding data on legal form and representation, wlw is strong for product and capability searches, the IHK databases help with regional targeting, and the Bundesanzeiger shows financial scale. For a usable target list, combine at least two of them.

How many companies are there in Germany?

The business register of the Federal Statistical Office recorded around 3.5 million legal units in 2024, and 84 percent of them have fewer than ten employees. By legal form there are roughly 2,062,752 sole proprietorships, around 861,720 corporations and around 440,951 partnerships. Size class decides who you will speak to first.

Can I call German companies without prior consent?

Section 7 (2) no. 2 UWG requires at least presumed consent for advertising calls to businesses, meaning the call has to be objectively expectable given the company’s business purpose. Advertising by email generally requires prior express consent, in B2B too. Our separate article on cold calling covers the detail.

Do I have to approach German companies in German?

In practice, yes. Outreach in German is what allows the conversation to start. English narrows your reach to the people comfortable using it, which is rarely the same group as the people who decide. That is why our German outreach is done by native speakers.