Can a company pay for a higher position?

No. Placement cannot be purchased. Commercial relationships do not change rank.

Why might a Voice AI firm be missing in United States?

Absence from this shortlist means the firm is not a published provider mapped to this scope in RankGlobal, not that it does not exist. Coverage grows as profiles and reviews are added.

Voice AI · United States

Best Voice AI Agencies in the USA

Published Voice AI providers mapped in United States in the RankGlobal dataset, ranked by review volume then rating. Placement is not for sale. Methodology.

Shown on this page

103

Mapped in this scope

Jul 25, 2026

Published · live order

The ranking

Review volume, then rating. A sponsored card is not a rank.

Mapped directory →

Rank

Agix Technologies

Agix Technologies is an AI systems engineering firm headquartered in Hingham, Massachusetts (99 Derby Street), founded in 2024.

Client's Delight4.6 · 100 reviewsService

Voice AILLM Agents & RAGAutomation & Workflow

Master of Code Global

Conversational AI Development, Agentic AI Development, Generative AI Development, Voice Solutions.

Top Rated4.9 · 20 reviewsService

Voice AIConversational AIAutomation & Workflow

An AI-powered platform for healthcare providers that automates clinical documentation and patient charting, reducing the administrative…

Top Rated4.9 · 20 reviewsService

Voice AINatural Language ProcessingAutomation & Workflow

Floatbot provides an AI Agent Platform that automates customer conversations and high-volume workflows across voice, chat, SMS and email…

Best Performer4.4 · 20 reviewsProduct

Voice AIAutomation & WorkflowConversational AI

Location

Milpitas, California, USA

Five9 is a provider of cloud-based contact center software, offering an Intelligent CX Platform that unifies voice, digital, and AI…

Best Performer4.3 · 20 reviewsService

Voice AIAutomation & WorkflowConversational AI

Advanced AI platform for dentistry that automates administrative tasks and clinical decision-making using FDA-cleared analysis for x-rays…

Top Rated4.9 · 19 reviewsService

Voice AIComputer VisionAutomation & Workflow

Defined.ai is an ethical AI data marketplace providing curated, high-quality speech, vision, text, and music datasets to train responsible…

Top Rated5.0 · 18 reviewsService

Voice AIComputer VisionAI Ethics & Governance

Cresta provides a generative AI platform for contact centers, offering real-time coaching and automation tools that empower agents…

Top Rated4.8 · 17 reviewsService

Voice AIAutomation & WorkflowConversational AI

Autviz is a digital-transformation consultancy offering AI-powered, custom web, mobile, and enterprise solutions that accelerate innovation…

Top Rated4.9 · 16 reviewsService

Voice AIConversational AIDocument AI

DeepScribe is an ambient AI medical scribe that automates clinical documentation by capturing patient encounters and generating accurate…

Top Rated4.8 · 16 reviewsProduct

Voice AIAutomation & WorkflowDocument AI

ScienceSoft is an IT consulting firm providing custom AI software, machine learning model development, and computer vision solutions…

Top Rated4.8 · 16 reviewsService

Voice AIComputer VisionAutomation & Workflow

Observe.AI is a generative AI company that transforms contact centers by extracting intelligence from every customer interaction to improve…

Best Performer4.3 · 16 reviewsService

Voice AIConversational AILLM Agents & RAG

Location

Redwood City, California, US

HighLevel (GoHighLevel)

GoHighLevel is an all-in-one sales and marketing platform designed for agencies, offering AI-powered tools for CRM, automation, funnel…

Top Rated4.9 · 15 reviewsService

Voice AIConversational AIAutomation & Workflow

Embedded voice AI platform, Sound-ID engine, Biometric authentication. RankGlobal maps its primary capability to Speech Recognition within…

Top Rated4.9 · 15 reviewsService

Voice AIComputer VisionConversational AI

Cardinal Peak is a product engineering services company that develops custom AI solutions, embedded systems, and IoT devices, specializing…

Top Rated4.8 · 15 reviewsService

Voice AIEdge AI & IoTComputer Vision

Synaptics Incorporated

Synaptics Incorporated develops advanced human interface solutions, specializing in edge AI, computer vision, and wireless connectivity…

Top Rated4.8 · 15 reviewsService

Voice AIEdge AI & IoTComputer Vision

Dolbey is a long-standing leader in the healthcare technology sector, specializing in the development of advanced solutions for clinical…

Top Rated4.8 · 15 reviewsService

Voice AIDocument AINatural Language Processing

Otter.ai offers an AI meeting assistant that provides real-time transcription, automated summaries, and insights, helping teams capture…

Best Performer4.4 · 15 reviewsProduct

Voice AIConversational AINatural Language Processing

Customer Service AI Chatbot, Industrial IoT Software, AI Fitness Apps. RankGlobal maps its primary capability to Conversational AI within…

Top Rated4.9 · 14 reviewsService

Voice AIConversational AIAutomation & Workflow

SoundHound AI delivers enterprise-grade conversational and voice AI platforms—AI agents that automate customer service, sales, and product…

Top Rated4.8 · 14 reviewsService

Voice AIConversational AIEdge AI & IoT

How this list is built

This shortlist is computed from 103 published Voice AI providers mapped in the RankGlobal dataset in United States. We show the leading 20, ordered by mapped review volume then rating. Placement cannot be purchased. The current leaders by review volume are Agix Technologies, Master of Code Global, and ScribePT. Published Jul 25, 2026; the order changes as evidence lands.

103 published providers in this mapped pool.
20 firms are shown here, ordered by mapped review volume then rating.
416 mapped reviews sit on the firms shown — not a market-wide total.
Headquarters on this shortlist: Boston, USA, San Mateo, USA, Denver, Colorado, Milpitas, California, USA, and 13 more.

About this ranking

How is “Best Voice AI Agencies in the USA” ranked?: The list is computed at request time from published Voice AI providers mapped in the RankGlobal dataset in United States. Order is mapped review volume, then rating. It is not a stored editorial pick.
Can a company pay for a higher position?: No. Placement cannot be purchased. Commercial relationships do not change rank.
Why might a Voice AI firm be missing in United States?: Absence from this shortlist means the firm is not a published provider mapped to this scope in RankGlobal, not that it does not exist. Coverage grows as profiles and reviews are added.

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Rankings are a point-in-time assessment and change as evidence lands. Mapped directory · Listing disclaimer