Berlin pre-seed investor: who Halfmeyer Ventures backs

Who we are

We operate as a private venture studio: we design, fund, and scale technology companies rather than acting as a capital-only check. Our legal entity is Halfmeyer Technologies UG (haftungsbeschränkt). Moritz Halfmeyer is Founder and CEO. Public track record includes 20+ investments, 5.6× portfolio ROI, and 100+ products built. Selected portfolio names we publish include Doctario, Debtist, Fideus, Joy_, Papeer, vi Health, Urban Ray, mula., Morgen Health, Sunset, ClearStack, and Protocol Health.

Founders usually meet us when they want an early institutional check that still ships alongside the team. That is the point of the studio model for us: capital and operator support in the same relationship, without requiring a warm introduction to start a conversation.

Stage, ticket, and geography

We invest at pre-seed and seed. Our typical ticket is €25,000–€200,000. We can participate as an early co-investor or as the sole institutional check when round size and fit align. Syndicated rounds with angels, family offices, or other funds are equally fine. Bridge and extension rounds between priced rounds can fit when stage, traction, and ticket match.

We are Berlin-based and active with European founders. Incorporation does not need to be German or EU-based: UK, US (including Delaware), Swiss, and other jurisdictions work when product, market, and round structure fit. State your entity, jurisdiction, and any planned flip in the deck so we can assess closing mechanics early.

Instrument flexibility matters at this stage. We work with SAFEs, convertible notes, Wandeldarlehen, and priced equity. Pre-seed often uses convertibles for speed; seed often uses priced equity. Include proposed instrument and key terms (cap, discount, or valuation range) in your submission.

Sectors we focus on

Our focus sectors are health tech, AI, e-commerce, and automation. We look for software-led, category-defining products with clear paths to scalable revenue. Adjacent verticals can fit when software, data, or automation is the core of the product and ties clearly to those focus areas. We back both B2B and B2C.

We typically pass on capital-intensive hardware-only or deep-tech bets without a software surface, token-first or speculative crypto and Web3 models, and pure listing marketplaces without a technology moat. If your company sits next to our focus sectors, explain the software surface, regulatory path if any, and traction in the deck.

What you get beyond the check

Investment is one engagement model. Beyond capital, portfolio companies access design, engineering, and go-to-market playbooks from day one. We also run incubation (idea toward an incorporated entity with validation, UX, architecture, early hires, and first customer conversations), acceleration (embedded senior product and engineering for existing startups), and advisory (product strategy, technical diligence, and org design for corporates and funds at board level). For a full breakdown of those four paths, see invest vs incubate vs accelerate vs advisory.

For a raise, that means we evaluate operator fit as seriously as market size. If you mainly need a quiet capital partner with no build involvement, we may not be the right check. If you want a Berlin-rooted studio that can help ship product and sharpen GTM while writing €25k–€200k, you are in the right place.

Who should pitch us

Strong fits are pre-seed or seed teams with a working product, prototype, or validated problem–solution fit. Operator-minded founders who value design craft, engineering rigour, and fast iteration tend to get the most from working with us. Solo founders are welcome; a co-founding team is not a hard filter. First-time and repeat founders are both in scope. Pre-revenue is common at pre-seed when there is a tangible product or prototype and early users, pilots, or LOIs.

Idea-only decks without validation are usually a pass for investment, though advisory and incubation can start earlier. Part-time founders at pre-seed can fit when execution velocity is real and the post-close full-time transition plan is clear. Our checks are dilutive equity instruments; rounds that are exclusively non-dilutive (revenue-based financing or grants with no equity tranche) are not a fit for investment.

How to pitch a Berlin pre-seed investor like us

Submit at halfmeyer.tech/pitch. Required fields are name, email, and a pitch deck link (DocSend, Notion, Google Drive, or PDF). Company name is optional. Set the deck to view-only for anyone with the link; password walls and named invites slow review. Ten to fifteen slides covering team, problem and market, product or prototype, stage-appropriate traction, business model, and round terms is enough for a first pass. No full data room is required on first submit.

Cold submissions are welcome. You do not need a warm introduction or mutual connection. We review every deck personally and respond within 48 hours with a founder call path, clarifying questions by email, or a clear pass. After a productive call, diligence typically runs one to two weeks (product walkthrough, key metrics, references when useful, term alignment with co-investors). We do not sign NDAs before initial deck review; pitch materials stay confidential and are not shared externally.

If you already have committed co-investors, note them and the remaining open allocation in the deck. If you need a sole institutional check in our ticket range, say so. For portfolio companies we already back, reach out directly when planning a follow-on; participation is common when traction and terms warrant it, but it is not automatic.

Submit your deck

If you are raising pre-seed or seed in health tech, AI, e-commerce, or automation, and you want a Berlin venture studio that can write a meaningful early check and help you build, submit your deck. We respond within 48 hours.