The new standard for business calls.

Koll SmartCard — Displays the caller's information and the reason for the call for every call. Works 100% of the time when calling any mobile number.

Caller ID and caller information for every call
Your company will appear as a verified caller to the recipient
The person receiving the call doesn't need to have the Koll app—it works with all mobile phone numbers
Meets the most demanding safety requirements
100% European service

How to make a call with the Koll app.

How your company joins Koll:

What do users say about Koll?

43% hitrate in IT services sales.

"With Koll, we reach the right decision-makers and almost every second call leads to a sales opportunity."
Buutti Oy / IT consulting company
Up to 60% response rate to my calls.

"With Koll, on my best days, I've had up to 60% response rate to my calls. Nowadays I only use Koll to make my calls."
-Kaisu Korolainen
Your Network & Growth / B2B sales renewal & development partner
The caller takes responsibility.

"A modern salesperson should call with contact details and the subject of the call visible. That's why we call with the Koll app. Trust is built on transparency."

Sales Collective / Sales Collective Production
I just wanted to say thank you.

"Koll is absolutely brilliant - easy to use, visually done and adds a nice nuance to the call. The recipient can immediately settle in and relax when they know who is calling. Every salesperson should have this!"

Aihu Agency Ltd / Technology, information & internet
With a collar, you can catch customers.

"Despite several attempts, I could not reach the customer. When I called Kollla, he answered immediately - and an urgent project issue was resolved immediately."
-Janne Mikola, Project Manager

Hava Oy / HVAC works