Valence AI Raises $5M in Total Funding Led by Differential Ventures

The round also saw participation from Difference Partners, Willowtree Ventures, Change Paradox Ventures, and SRI International.

The company plans to use the funding to grow its operations and continue developing its technology.

Valence AI’s customers include Harte Hanks, CustomerHD, and BPO Centers. Its technology is used across Fortune 500 companies in retail, healthcare, and clinical research.

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The company also introduced the Emotion Quotient, a customer satisfaction metric based on real-time emotional signals during live calls, instead of post-call surveys. It is designed as a more accurate alternative to NPS for voice-based businesses.

The company holds two US patents issued in June 2026 for identifying emotional state from live speech in real time. These patents describe how Valence AI converts raw audio into emotion signals adjusting for pitch and tone so the system reflects a speakers emotions rather than demographic traits.

One patent covers the core speech processing system, while the other extends it to include real-time haptic feedback. Valence AI both owns the intellectual property and uses it in commercial deployments, which is uncommon in the emotion AI industry.

Valence AI builds and releases its own foundation models trained on proprietary speech data designed to reflect diverse demographics and neurotypes. The company reports 92% accuracy on internal benchmarks. Its products include emotion-aware IVR, an Agent Assist tool for live call coaching, AI voice agents, and post-call quality assurance systems.

The platform integrates with ElevenLabs and Cartesia to produce more natural, expressive audio based on emotional analysis. In real-world deployments, Valence AI reports a 30% reduction in handle time, along with improvements in customer satisfaction, close rates, and time to resolution.

The company builds an emotional intelligence infrastructure for voice AI. Its Pulse Emotion model analyzes live calls in real time and detects emotional state from speech, turning tone, pacing, and other vocal signals into structured data. This helps voice agent platforms, contact centers, and sales and support teams use emotion insights alongside transcripts and intent.

"Voice AI has gotten remarkably good at understanding what people say, but it still can not hear how they feel: the frustration under a polite request, the hesitation before someone hangs up," said Chloe Duckworth, co-founder, and CEO of Valence AI. That gap between human experience and machine intelligence is exactly what we close. Real emotional alignment begins when models understand both the intent, and impact of their output. We're building the emotional communication layer that gives voice AI that understanding."

"Voice AI has made enormous progress toward understanding what people say. The more challenging gap remains what people mean, and emotional state understanding is the signal that closes that gap," said Nick Adams, Managing Partner at Differential Ventures. "Valence AI is building the infrastructure layer that makes that signal usable, and they are doing it with proprietary models, issued patents, and enterprise-scale deployments that deliver measurable business impact."

About Valence AI

Founded in 2021 by Chloe Duckworth and Shannon Brownlee, Valence AI builds emotional intelligence infrastructure for voice. Its patented technology analyzes how people sound on calls, detects emotions in real time and converts them into data that voice AI systems can use alongside intent and transcripts. The company holds two issued US patents for its core signal processing methods and works with customers in support, financial services and healthcare.

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