Voice AI 2030: What’s Next After Customer Service?

The voice AI market is projected to reach a valuation between $48 billion and $100 billion by 2030, driven by a consistent compound annual growth rate of 25% to 35%. While customer service remains a primary driver, the technology is rapidly expanding into mobile ecommerce, healthcare, and home security interfaces. This growth reflects a broader shift toward verticalized AI solutions that prioritize consumer preference for voice-based interactions over text-based alternatives.

The voice AI sector is entering a high-growth phase where its expansion rate is expected to outpace text-based conversational AI, largely because the voice market is in an earlier stage of breakout. Analyst Blair Pleasant from COMMfusion notes that voice AI empowers businesses to improve Net Promoter Scores (NPS) because the majority of consumers prefer voice interactions. Supporting this, data from Netomi shows that 71% of people already use voice assistants to research products, and PwC reports that 89% of customers prefer brands that provide voice AI support.

As the technology evolves, the industry is moving toward highly verticalized applications, which venture capital firm Madrona identifies as the next "killer app." Andy O’Dower, VP of product management at Twilio, highlights that the most effective solutions must offer flexibility and remove complexity to allow companies to scale at their own pace. This shift necessitates a more rigorous vendor evaluation process, as the market now includes a diverse range of providers from specialized AI startups to traditional VoIP companies, all competing on customization, time to market, and ROI.

Future projections for the sector are ambitious, with EMarketer estimating that the number of voice assistant users in the U.S. will reach 157.1 million by 2026. The roadmap for the next decade includes sophisticated use cases that go beyond simple queries, such as voice-activated AI analysis of X-rays and MRIs in the healthcare sector. Additionally, the industry is anticipating the rise of speech-to-speech interactions involving direct voice-AI-to-voice-AI dialogues, signaling a move toward a fully integrated and autonomous voice ecosystem.