TLDR: Sifted’s latest report highlights the most active investors in the burgeoning AI agent startup sector for 2025, detailing significant funding rounds and the top venture capital firms driving this growth. The sector has already surpassed 2024’s total funding, indicating a rapid acceleration in AI agent development and adoption.
The landscape of artificial intelligence is witnessing a significant surge in the ‘AI agent’ sector, with startups in this domain attracting substantial investment in 2025. According to a recent report by Sifted, a leading European tech publication, AI agent startups have collectively raised an impressive €2.4 billion across 193 funding rounds so far this year. This figure already surpasses the €2 billion secured over 106 rounds throughout the entirety of 2024, underscoring the accelerating interest and investment in this specialized AI field.
Several companies have made headlines with their substantial fundraises. Swedish vibe-coding startup Lovable, for instance, closed a $200 million Series A round in June, following a €16 million seed investment just months prior. German customer service agent developer Parloa secured $120 million in May. The German workflow automation platform N8n became the subject of an intense bidding war among prominent venture capital firms, including Accel and Insight Partners, for a round exceeding $100 million. Additionally, Swedish AI legaltech firm Legora successfully raised $80 million in May.
Sifted’s analysis, based on proprietary data and direct confirmations from investors, identifies the most prolific AI agent investors of 2025. Among them:
Kima Ventures (Paris): This firm has been exceptionally active, participating in 8 deals. Their portfolio includes investments in French startups such as AI recruitment platform Omogen (undisclosed size, April), GenAI software editor Delos Intelligence (€2.5m seed, April), healthcare admin AI agent startup Parallel ($3.5m seed, April), AI recruitment company Kalent (€1m seed, May), AI receptionist service Vocca AI (undisclosed size, May), social data analysis firm Arlequin (€4.4m seed, June), AI marketing platform Massive Dynamic (€3m pre-seed, July), and AI agents for marketing startup Pletor (€2m seed, June).
EQT Ventures (Stockholm): With 7 deals, EQT Ventures has also demonstrated strong commitment to the sector. Their investments include Swedish AI agents for accounting startup Bluebook ($3m seed, February), German AI call centre company Parloa ($120m Series C, May), French data insights platform Sifflet ($18m, June), UK-based AI agent marketplace Paid AI (€10m seed, March), Netherlands-based finance management platform Stacks (€6.6m seed, February), French AI cybersecurity startup Qevlar (€9m seed, April), and Netherlands-based agentic workflow firm MarvelX (€5.4m, May).
Sequoia Capital: A global powerhouse, Sequoia Capital has backed several key players, including German AI enterprise workflow automation platform N8n (€55m Series B, March), UK-based Paid AI (€10m seed, March), UK AI digital worker startup Magentic ($5.5m seed, July), and Netherlands-based customer service agent platform Lemni (€3.3m seed, March).
Unnamed Berlin-based Investor: Another active investor, headquartered in Berlin, has supported German startups like workflow automation platform Cakewalk ($7.5m seed, April), healthcare workflow automation platform Elea (€4m, March), and Remberg (€15m Series A, May), along with French AI agent for customer and product data startup Neuralk AI (€3.8m seed, February).
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This robust investment activity highlights the venture capital community’s strong belief in the transformative potential of AI agents across various industries, from customer service and marketing to legal and healthcare administration.
