Confirmed identity
Once verified by Sumia, you won't have to resubmit your personal documents with every job application.
AI-generated
The Club for good tenants.
We believe that reliability can be visible without having to reveal too much about yourself. Sumia verifies your identity once. After that, your profile speaks for you—not your personal information.
Hundreds of people are applying for the same apartment. How can you stand out—without revealing too much about yourself?
HOW SUMIA WORKS
Confirmed once.
In your hands from then on
AI-generated
Confirmed, not rated.
Your documents stay with you until it counts.
Please have this confirmed once
During a face-to-face meeting, Sumia will verify your identity and determine what rent you can comfortably afford.
Share Your Profile Instead of Sending Documents
You share your Sumia business card, which includes the most important verified information. Your personal documents remain with you for the time being.
Don't show the documents until things get serious
You should submit the required documents only when it comes time to sign the lease.
THE TWO PATHS
Two ways to use your Sumia business card.
When applying for a job
When applying for a specific apartment, include your Sumia profile. Once you've been invited, you can share your full profile. Personal documents are only required when it comes time to sign the lease.
As a placeholder
Even if you don't have a specific apartment in mind, you can leave your business card with real estate agents or property management companies. The reservation is valid for six months and can be revoked at any time. If a suitable apartment becomes available, they can contact you directly.
THE OCCASION
For anyone who doesn't want to start from scratch when looking for an apartment.
New to the city. On your own for the first time. Returning after years abroad. Or simply facing a new life situation.
What matters most to Sumia isn't the amount of your income, but your attitude toward fostering the most successful tenancy possible and whether the apartment you're looking for fits your budget.
The Profile
A profile that grows with you.
Your verified housing history remains intact and can be updated with each move. Over time, this builds a housing reputation that is uniquely yours.
Confirmed residential history
Occupied residential units reflect the reputation you have built as a tenant over the years.
Membership card
MM
Max Mustermann
Hamburg • 4-person household
Confirmed
Committed: in a conflict, talk first
Looking for
Eppendorf · Harvestehude · Eimsbüttel
up to €2,800 incl. utl.
4-5 rooms
4 people
To the profile
or
Member since 2026
Appropriate Rent Level
Your income and personal circumstances remain private.
Curated by hand
Confirmation is done in person, not through a score or algorithm.
The Idea
Sumia takes one side. Yours.
When looking for an apartment, people often share very personal information long before it’s even clear whether a lease will be signed. I believe this doesn’t have to be the case. With Sumia, I want to create a private, independent way for tenants to demonstrate their financial stability to landlords without widely disseminating personal information.
Prof. Dr. Andreas Mix, Founder
Three Promises
What Membership Includes
AI-generated
The Admission
Not a form, but a threshold: a personal conversation, a careful confirmation, a commitment one makes - and keeps.
Sumia is not an anonymous tool. It is a community with standards.
AI-generated
The Mediation
In the event of disagreements, the following principle applies: talk it out first. To this end, Sumia has assembled a network of independent mediators—and for all mediators in this network, the first session is free of charge for Sumia members.
Being a member of Sumia means sharing a common philosophy: We resolve conflicts through dialogue, not through escalation. No rules imposed on us—just the way we live and coexist anyway.
Our Word
First, the conversation.
If a dispute arises in a rental agreement, Sumia members can involve an independent mediator from the Sumia network. The first meeting is free of charge.
AI-generated
Membership
One payment a year. For the whole household.
Membership applies to your entire household and remains valid even after you've found a place to live. With each confirmed place of residence, your profile can continue to grow.
One-time
Admission feeIncludes the first 24 months
€199
Annually
Membership feeStarting in the third year of membership · for the entire household€99
The membership fee covers the first two years of membership.
Without confirmation
Try Sumia without a membership for now.
You can also create your profile without verification and share it with specific recipients for a limited time. It will be clearly marked as “unconfirmed”.
Reservations and mediation are available exclusively to Sumia members.
Monthly
Profile Postper month per household
€9,99