Top 9 Natural Language Generation (Generative AI) startups in USA

Sep 15, 2025 | By Siddhant Patel

1
Funding: $61.9B
OpenAI is an AI research and deployment company. Our mission is to ensure that artificial general intelligence benefits all of humanity.
2
Funding: $165M
Typeface is a generative AI application for creating enterprise content.
3
Funding: $132M
Conversica’s AI platform intelligently convert leads into sales opportunities via natural, two-way email conversations. It creates engaging conversations so that you can reach your sales goals
4
Funding: $96M
Persado Marketing Language Cloud delivers AI-generated language that resonates the most with any audience, segment or individual. Imagine having a data scientist and a copywriter for each person in your audience; you get the language that performs and the analytics explaining why, resulting in more business and unseen insights.
5
Funding: $51.4M
Infinitus is a startup company that develops voice robotic process automation tools for the health care industry. Infinitus uses “voice RPA” to become the machine-generated voice that makes calls from, say, healthcare providers or pharmacies to insurance companies
6
Funding: $10.8M
Automated Insights develops technology that automatically generates narratives on a massive scale that sound like a person crafted each one.
7
Funding: $17.9M
OneSpot generates personalized content after viewing a website user’s history on the internet.
8
Funding: $5.4M
OthersideAI is a provider of an AI-driven software which turns summaries and shorthand notes into written emails.
9
Funding: $2.2M
Accelerate your writing time by 40% with AI-powered autocompletion
  See also:
Editor: Siddhant Patel
Siddhant Patel is a senior editor for AI-Startups. He is based out of India and has previously worked at publications including Huffington Post and The Next Web. Siddhant has a special interest in artificial intelligence and has spent a decade covering the rapidly-evolving business and technology of the industry. Siddhant graduated from the Indian Institute of Science (Bengaluru). When he’s not writing, Siddhant is also a developer and has a deep historical knowledge of the computer industry for the past 50 years. You can contact Siddhant at sidpatel(at)ai-startups(dot)pro