Polish sun.store, a B2B marketplace for solar components, has raised €6 million in seed funding to transform how solar and storage equipment is bought and sold across the continent.
👯 Founders: Agata Krawiec-Rokita (CEO), Bartosz Majewski (Co-founder)
📅 Founding year: 2023
🏭 Industry: Clean energy / B2B digital marketplace (solar, PV, batteries)
💥 Problem: Solar procurement in Europe is still manual, fragmented, and inefficient — dominated by emails and spreadsheets that slow transactions, increase mismatches, delays, and pricing opacity.
📣 Solution: sun.store is a transactional B2B marketplace designed for the solar industry, enabling structured product listings, dynamic pricing, integrated logistics, flexible payments, and embedded support.
👥 Customers: Installers, distributors, wholesalers, and EPC (Engineering, Procurement & Construction) firms across Europe.
🌱 Stage: Seed
💰 Investment amount: €6 million
🚀 Funded by: Contrarian Ventures, Market One Capital, Movens Capital (co-leads); FJ Labs, Push Ventures, Aidiom (participants)
👁️🗨️ Investor’s perspective:
💡 It will be spent on: New product features, expanding operational and commercial teams, merchant onboarding, strategic sourcing, business development, and hiring in product and engineering.
💬 In their own words:
Agata Krawiec-Rokita: “Our goal is simple – to bring structure, speed, and transparency to solar procurement.”
Bartosz Majewski: “We’ve been in the solar trenches long enough to know how fragmented and frustrating procurement can be. That’s why we built sun.store.”
💪 Their specialty: Deep solar industry experience combined with digital marketplace expertise, building pan-European infrastructure from day one.
🔑 Business model: B2B marketplace generating revenue from transactions between verified sellers and buyers, with added services in logistics, financing, and procurement support.
👩🏫 Market: Europe’s solar and storage market represents a €35–40 billion annual opportunity, with components changing hands 4–5 times before installation. High fragmentation and cross-border trade needs.
📊 Traction:
– 35,000 registered users and 2,500 unique buyers across 25+ countries
– 1.4 GW of PV components transacted (~city of Brussels powered)
– 1,000+ monthly transactions; avg. order value €8,000+
– 500+ active sellers, €1.5B worth of components listed
– Products from 200+ brands, 1,000+ warehouses
– 90% of transactions cross-border, €100M+ GMV
⚡ Competitors: Traditional offline distributors and procurement channels; generic B2B marketplaces (less specialized).
