3x founder

Sebastian Dettweiler

Partnerships, Ex-Meta, Advisor, Angel Investor, Entrepreneur

Co-founder

Messengage.ai· Speedrun 003🇩🇪 Markt Schwaben, Bavaria, Germany

in LinkedIn

2026Head of Partnerships & Alliances· Brainsuite.ai

Founder · since 2002

Company

Brainsuite.ai

Role

Head of Partnerships & Alliances

current

Stage

—

no public source

Raised

—

no public source

Based

—

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Messengage.ai

Pioneering Conversational Commerce in gaming through social messaging.

Speedrun 003

Experience

Career

Brainsuite.ai
Head of Partnerships & Alliances · 2026 – Present
2026
DTTWLR Consult UG (haftungsbeschränkt)
Founder
CEO/Founder · Markt Schwaben, Bavaria, Germany · 2024 – Present
2024
Messengage.ai
Co-founder
CPO/COO & Co-Founder · 2024 – 2025
2024
Active IT
Founder
CEO / Founder · 2002 – 2024
2002
Meta
Head of Product Partner Solutions - CoreAds · Munich, Bavaria, Germany · 2022 – 2024
2022
Meta
Head of Core Ads & Signals Partnerships - EMEA · Hamburg, Germany · 2020 – 2022
2020
Facebook
Head of Ad Tech & Creative Partnerships - EMEA · 2019 – 2020
2019
Facebook
Head of Enterprise Partnerships - EMEA · Greater Hamburg Area · 2019
2019
Facebook
Regional Lead - Partner & Ecosystem Development - Northern & Central Europe · Greater Hamburg Area · 2017 – 2018
2017
Facebook
Partner and Ecosystem Development - Central Europe · Hamburg, Germany · 2015 – 2017
2015
Facebook
Market Development Manager DACH - Partnerships · Hamburg · 2014 – 2015
2014
eSP eSales Performance Marketing GmbH
Head of Media & Operations · Hamburg · 2011 – 2014
2011
arvato online services GmbH
Key Account Manager · Greater Munich Metropolitan Area · 2011
2011
PromoZebra GmbH
Head of Marketing · 2010
2010
BSH Home Appliances UK
Internship · 2008
2008
Institut für Wirtschaftsinformatik/Neue Medien
Student Assistent · 2007 – 2008
2007
Paulaner Brauerei GmbH & Co. KG
Project Study · 2007
2007
KRAIBURG TPE
Internship · 2006
2006

Bio

Sebastian brings more than 20 years of experience in digital advertising and SaaS product development. For the last 9+ years he hast been working at Meta leading various teams across Meta’s Business Partnerships and Product Partnerships organization. He has overseen partnerships enabling $5B+ annual revenue for Meta’s business and helped various tech companies to scale from almost zero revenue to billions of dollars. Sebastian has a strong personal value for problem solving and building scalable tech products to address real market needs. After using this passion to help tech companies around the world, he has decided to take it to the next level and build his own company.