About us - Instream Group
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We are InStream Group

Learn more about the way we bring our customers closer to reaching their sales goals.


Get to know us

As InStream Group, we are a rapidly growing team specializing in sales services and acquiring B2B customers. We successfully support over 1500 clients in building effective sales campaigns in over 80 markets around the world.

We help companies in gaining new business contacts and optimizing sales processes. We have a modern sales management system that allows you to monitor and analyze communication within your sales funnel.


Founders of InStream Group


Filip Duszczak


Founder of the InStream Group. Entrepreneur, speaker, sales consultant. He is passionate about using technology in communication and sales processes.


Wojciech Cebula

Operations Director & Co-Founder

An experienced marketer specializing in SEO. In InStream Group he is the operational director.


With a passion for sales


We make tailor-made campaigns from scratch.


We operate as required and rely on many years of experience in sales.

Customer Care

Each project has a dedicated team to support.


The ability to share knowledge is very important to us

Cooperation with universities

Since 2017, our team has been substantive support for many scientific projects, among others at the Poznań University of Technology, the University of Warsaw or in educational projects of the Greater Poland Marshal's Office.

Mentoring in business accelerators

As we once started ourselves, today we proudly and passionately support Polish business accelerators. We are mentors and sponsors of, among others, BraveCamp and HugeThing.

Speakers at international events

We are happy to accept invitations to business events that spread knowledge among entrepreneurs and business people. Our founders have participated in many events such as E-commerce EXPO or Aula Polska.


We help clients improve sales

Meet our customers

Business has always been based on relationships, the only difference is that their building has moved to online and social media and the InStream Group is one of the few companies that will help you control it all.

Piotr Mroziński

Invest in your sales team

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