Seed Phase Startups

The L-Booster

An equity-free growth grant for startups ready to turn traction into scale.

The L-Booster Accelerator

The L-Booster is a growth program by SouthwestX. Selected startups receive €25,000 in non-dilutive funding and focused support to accelerate market access, revenue and scaling. For startups ready to grow. For teams building at scale. For ambitious founders.

0 k

Funding

Events per year

weeks Term

What's on

Who should apply?

You have founded a startup within the last 12 months

You’ve taken your first steps from concept to execution and are actively shaping your company’s direction.

You are building a scalable business model with early traction

You’re testing your value proposition with real customers and learning from early market feedback.

Your startup considers aspects of sustainability within its business model

You’re embedding sustainability into your processes while preparing your business for long-term growth.

Startups in Deep Tech and/or AI are encouraged to apply

You’re developing technology-driven solutions with the potential to disrupt established markets.

Typical stage: Pre-Seed to early Seed

What do selected teams receive?

-> €25,000 non-dilutive funding -> Sales-oriented support by the SouthwestX team -> Dedicated sustainability training in cooperation with the European Academy

How does selection work?

-> Apply with your pitch deck -> Pre-selection & qualification by Southwestx -> Jury decision by L-Familiy Office

Application deadlines

Next: 30. Sept. 2026

The L-Booster is made possible through the support of the Loose-Family Office. Their contribution enables founders to focus on building, scaling and creating real impact. Beyond financial backing, selected teams benefit from access to a broad national and international network, entrepreneurial experience, strategic sparring and hands-on support where it creates real value.

The L-Familiy Office Website

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Ready to take the next step?

Secure your spot for the L-Booster 2026 now.

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