Network · Berlin and Brandenburg
Know good firms before you need them.
Renovation before a sale, removals after a purchase: for this we maintain a network of firms we have worked with successfully. We take on new partners when performance and conduct are right. Lead providers and marketing agencies are also welcome, on request on a success basis with commission.
For firms, service providers, lead providers and agencies
Become a partner
Takes about two minutes. We will get back to you within a few working days.
Who are you?
Where do you work?
How long has your company existed?
What do you expect from a partnership with BBI? Multiple answers possible
What do you expect from a partnership with BBI? Multiple answers possible
What do you expect from a partnership with BBI? Multiple answers possible
What do you expect from a partnership with BBI? Multiple answers possible
What do you expect from a partnership with BBI? Multiple answers possible
What do you expect from a partnership with BBI? Multiple answers possible
How many owners who want to sell could you refer to us per month, as far as you can tell?
An honest estimate is enough. We use it to plan our capacity.
How many seller enquiries (owners who want to sell) could you deliver to us per month, as far as you can tell?
An honest estimate is enough. We use it to plan our capacity.
How many enquiries from owners who want to sell do you expect to generate for BBI per month?
An honest estimate is enough. We use it to plan our capacity.
How many units do you manage?
How large is your business?
Which leads do you supply? Multiple answers possible
Where do the leads come from? Multiple answers possible
Have the leads expressly agreed to being contacted by an estate agent, and can you prove it?
Which services do you offer? Multiple answers possible
How would you like to work with us?
Success-based cooperation with commission is expressly possible.
Who may we contact?
Please provide your company, phone number, email address and consent.
Enquiry noted!
We will get back to you within a few working days.
Your details go to BBI Immobilien. We use them solely to process your partner enquiry. Information in the Privacy policy (German).
- Google rating 4.6 out of 5 stars47 Google reviews, as of 28/09/2026
Member for over 20 years
As featured in
BBI is part of NAI apollo. The company has four locations: Frankfurt am Main, Munich, Berlin and Rotkreuz. NAI Global adds 325+ partners worldwide. In the NAI Partners Germany alliance, seven independent partner companies with over 200 specialists work at ten locations in Germany (information from nai-apollo.de, retrieved on 13/09/2026).
Overall rating and number of reviews from our Google profile, as of 28/09/2026. We do not check whether the reviewers actually used our services, and we give no consideration in return for reviews. Notes on reviews
The network
The trades we work with.
Property managers
For owners' associations and rental buildings. Managers are the first to know the condition of a building.
Building trades
Electrical, plumbing, painting, drywall, flooring, locksmiths. From repairs to complete renovation.
Energy and heating technology
Photovoltaics, heat pumps, heating modernisation, insulation.
Architecture and planning
Conversions, floor plan changes, loft conversions and preliminary planning enquiries to the building authority (Bauvoranfrage).
Experts and surveyors
Building condition, damp damage, pollutants and valuation reports that go further than our own assessment.
Kitchen specialists and interior fit-out
Kitchen planning and furnishing after the purchase, to suit the floor plan.
Removals and clearance
House clearances and inheritance cases, when a house has to be cleared before the sale.
Financing and insurance
Financing for buyers, property insurance for owners.
Leads and marketing
Working on a success basis, if you want to.
Anyone who supplies us with seller enquiries or manages our channels can choose between a fixed price, a fee and success-based commission.
For lead providers
- We take on enquiries from owners who want to sell, provided there is proof that they agreed to being contacted by an estate agent.
- You choose: a fixed price per lead, success-based with commission, or a mixed model.
- We tell you what became of your leads, broken down by source.
For marketing agencies
- You run ads, websites, social media or video to win sellers.
- Fee, success share or both: we agree the payment together beforehand.
- You can also refer your own clients who want to sell to us.
Success-based means: you receive a commission on completed deals. We agree the amount and the terms in a personal conversation before you deliver anything.
For firms
You run a firm and want to become a partner?
We are mainly looking for: property management, building trades, energy technology, architecture, removals and interior fit-out, in Berlin and nearby Brandenburg.
- Enquiries with a specific reason. Clients who come to you through us have just bought, sold or renovated.
- A direct line. One dedicated contact person on our side.
- Visibility. If you wish, we mention you to clients by name when your trade fits.
- Collaboration in both directions. You are in owners' buildings before a sale is on the table.
- A registered business with the qualifications required for your trade and business liability insurance.
- Availability and a response within a few working days.
- Transparent quotes with a clear scope of work.
- A way of dealing with clients that we don't have to apologise for.
Special cases
For property managers and for owners.
For property managers in particular
We work more closely with property managers because our tasks overlap. This covers changes of ownership, the value of individual flats, compulsory administration and inheritance cases. How the cooperation works for sales and lettings is described on the page Cooperation for property managers.
Conversely, management companies know the actual condition of a building: which resolutions the owners have passed, how much money has been set aside for repairs and what is coming up. What buyers should check before the notary appointment is covered in the article on the notary appointment and land register.
And for owners, this means
You don't have to use our network. If you have your own tradesperson you are happy with, that is the better choice.
Frequently asked questions
Partners and cooperation: frequently asked questions.
Answers as of: 17 October 2026
Does a recommendation cost me anything?
No. You instruct and pay the firm directly. If, in an individual case, we receive money from a partner, we tell you before the contact is made.
Is BBI liable for the partners' work?
No. The contract and the warranty exist solely between you and the firm. Our recommendation is based on our own experience. It replaces neither comparing several quotes nor your own checks.
What criteria do you use to choose partners?
Based on actual collaboration: the result, availability and conduct must have been right. Anyone who repeatedly disappoints does not stay in the network.
I'm a property manager. How does a collaboration work?
It starts with a conversation about where our work overlaps: changes of ownership, the value of individual flats, inheritance cases and sales from an owners' association. After that, it is usually clear whether a regular collaboration makes sense.
Do I get exclusive jobs as a partner?
No. We usually name one or two suitable firms to clients, and the decision lies with the client.
We are a lead provider or marketing agency. Can we work on a success basis?
Yes. You can choose between a fixed price or fee, success-based commission and a mixed model. We agree the amount in a personal conversation. For leads, we require proof that the owners agreed to being contacted by an estate agent.
Want to discuss working together?
One minute in the form or a phone call.