Main Set
Second Floor, Malta House, 36-38 Piccadilly, London, England, W1J 0DP, United Kingdom
Overview
Main Set invests into leading scale ups in fintech and adjacent SaaS companies. Main Set is backed by Capricorn Capital Partners.
- Total investments
- 3
- Lead investments
- 0
- Investments · 12mo
- 2
- Active investors
- 2
Investment portfolio
- Paypercut
Participated · Seed · Jun 2026
Paypercut provides a full payments stack for online merchants across Central and Eastern Europe via a single integration, combining card payments, local payment methods, and multiple Buy Now Pay Later providers. Since its EUR 2M pre-seed in July 2025 the company has expanded to serve over 200 merchants across eight CEE markets and evolved from a BNPL aggregator into a full payments platform. Key product features include multi-currency settlement, onboarding fully online in days, payment links and QR payments, and an Express Checkout launching to enable one-tap Apple Pay and Google Pay flows. Paypercut operates through licensed and regulated partners across the EEA and has submitted its own EMI application with the Central Bank of Ireland, expecting authorisation in Q4 2026. The company is also developing stablecoin-based rails for high-volume non-euro corridors (starting with EUR-to-PLN and EUR-to-RON) and has a roadmap extending into treasury, FX, payouts, and embedded financial services.
- Scaleup Finance
Participated · Equity · Oct 2025
Founded in 2021, Scaleup Finance blends human expertise and software to deliver strategic finance services to smaller companies that typically lack an in-house CFO. Its new product, Nume, connects directly to clients’ banking and accounting systems to generate liquidity forecasts, board-ready reports and proactive risk alerts through familiar channels like Slack and email. The technology is built on lessons learned from Scaleup Finance’s 40 human CFOs who have supported more than 500 high-growth startups across Europe. During a private beta, over 2,500 companies from 80 countries signed up for Nume, demonstrating global demand. The company hit €1 million in ARR in its first year entirely through word-of-mouth, highlighting strong product-led growth economics. By leveraging a multi-agent AI architecture that the team claims delivers 100 % numerical accuracy, Scaleup Finance hopes to make professional-grade financial leadership accessible to the long tail of 50 million SMEs worldwide. The fresh capital will be used to bring Nume to market at scale.
- WealthOS
Participated · Seed · Jun 2024
WealthOS offers a composable, cloud-native software platform designed to enable wealth management firms to deliver digital, omni-channel financial products and services. The company provides cloud-native and API retail pensions (SIPP) technology. WealthOS was selected by Quai Digital as its strategic technology partner. It was established in 2019 and is based in London, UK. In June 2024 WealthOS closed a €4.6M seed round. The company plans to use the funds to further develop its platform, expand distribution, and scale its organization to support a robust client pipeline.