Voice AI is becoming one of the fastest-scaling categories in artificial intelligence, transforming contact centers, sales, healthcare operations, logistics, financial services, and customer support. Powered by real-time LLM inference, ultra-low latency infrastructure, and multi-agent orchestration, Voice AI is shifting from basic IVRs to fully autonomous voice agents capable of handling complex reasoning, workflows, and transactions.
As a YC-backed AI fund, venture builder, and AI venture partner, Attack Capital gives accredited investors exclusive access to the most promising voice AI companies, including YC-backed voice agent startups, Global Founders Capital–backed companies, Slow Ventures–backed companies, and studio-built real-time AI agent platforms. Attack Capital combines a venture studio and VC fund under one model, enabling investors to back both studio-born voice AI ventures and high-growth external AI voice agent companies.
Voice agents have crossed the threshold from novelty to necessity. Real-time reasoning, autonomy, and natural speech have unlocked a new category of enterprise automation. Voice AI now delivers lower cost, higher throughput, and 24/7 availability, surpassing human capacity for many operational workflows.
AI voice agents are being rapidly deployed for:
Early investors who invest in voice AI companies gain exposure to:
Attack Capital enables investors to invest in AI companies, invest in voice AI startups, and invest in X companies across enterprise automation ecosystems.
Attack Capital invests across the full voice AI value chain, combining insights from our YC startup studio, internal company builder, and active AI fund.
Voice AI is evolving into fully autonomous agents capable of reasoning, task completion, and multi-step workflows. We invest in companies building:
The enterprise phone channel is being rebuilt with AI-native infrastructure. We target startups focused on:
Vertical AI is driving enormous ROI, especially in industries with repetitive call volume. We invest in category-defining vertical voice AI applications, including:
Voice AI requires advanced infrastructure that traditional LLMs cannot deliver alone. We back companies developing:
Attack Capital is not a traditional VC. We operate as a YC-backed AI fund and venture builder studio, giving investors unmatched access to early-stage voice AI companies.
As a YC W22 alumni, Attack Capital receives priority access to YC-backed voice AI startups and the strongest multi-agent + real-time AI teams. We identify voice AI founders long before they enter major funding pipelines.
We are one of the only AI funds globally built on the studio model of venture. Attack Capital actively builds voice AI companies from the ground up, testing them with enterprise partners and preparing them for YC or Seed rounds. Investors gain exposure to:
We co-invest with top global funds, including Global Founders Capital, Slow Ventures, YC Continuity, and leading AI infrastructure & automation investors. Attack Capital LPs receive access that traditional investors cannot.
Voice AI requires deeper diligence than typical SaaS. We evaluate:
This builder-level audit ensures investors only back voice AI companies capable of scaling to millions of real-time interactions.
Verify accredited investor status and unlock curated voice AI deal flow.
Access our portfolio of studio-born and YC-backed voice AI startups.
Start investing with a minimum allocation of $10,000.
Receive quarterly updates, follow-on round access, and performance insights.
Attack Capital invests in companies with:
We back voice AI companies positioned to become category leaders.
Voice AI is becoming the universal interface for enterprise automation. The next generation of market leaders will be autonomous, real-time, multi-agent voice systems that replace manual workflows across every industry. Partner with Attack Capital, YC-backed AI fund and venture studio building the voice agents of the future.
Become a Voice AI Investor