content-optimization
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Anyword wants to know which words will sell
AI has made writing cheap. Anyword is betting that knowing which sentence deserves your advertising budget is the more valuable business.
Vizit asks the question your product photos cannot answer: will it sell?
A chocolate brand moved its pictures around and reported more sales. Vizit’s wager is that the next useful thing AI does for commerce is teach companies which images deserve to be seen.
Persado sells the words that make customers act
A home-equity ad helped expose the limits of marketing intuition. Persado has spent the years since turning that lesson into a system for producing, testing and checking the messages regulated brands send.
Search Atlas and the Trouble with Knowing What to Fix
SEO software has become very good at finding work for people. Search Atlas is betting that the more valuable business is getting that work done.
Surfer Turned the SEO Scorecard Into an AI Visibility Console
Surfer made on-page SEO feel like a game. Now it wants to show whether ChatGPT knows your name - and tell you what to publish when it does not.
Frase Turns Search Chores Into a Publishing Shift
Frase has grown from a clever briefing tool into a content operator that can research, draft, score, publish, and watch the work. The useful question is no longer whether it can write, but how much of your editorial loop you are willing to hand over.
Goodie AI Turns Machine Chatter Into Marketing Homework
Goodie watches what answer engines say about your brand, then hands your team a to-do list. The bet is simple: a useful fix is worth more than another handsome visibility chart.
Writesonic Has Left the Blank Page Behind
The former AI copywriter now watches what answer engines say about your brand, spots who stole the citation, and hands your marketing team a to-do list. The writing robot grew up and became an operations desk.
MarketMuse Knows What Your Content Calendar Is Hiding
MarketMuse turns a sprawling website into a ranked list of editorial bets. It earns its keep when the expensive question is not how to write another article, but which article deserves the team’s Tuesday.
Your SEO Tool Is Really an Org Chart
Semrush rewards teams that want one operating console. Ahrefs rewards teams that want the web’s link graph close to the metal - and the best choice is a bet on how your company actually works.
Evertune AI
Evertune AI is a New York-based analytics and generative engine optimization (GEO) platform that measures and improves how brands appear inside AI assistants like ChatGPT, Gemini, Claude, and Perplexity. Founded in 2024 by veterans of The Trade Desk, it runs hundreds of thousands to over a million prompts per customer to score brand visibility, benchmark against competitors, and generate AI-optimized content. The company raised a $15M Series A in August 2025, led by Felicis Ventures.
It'sRapid
It'sRapid is a Palo Alto-based AI creative automation platform that turns product data and existing assets into retailer-compliant commerce content - images, videos, display ads, sell sheets and product copy - at scale. Its Optix engine scores and audits creative before and after it goes live, and the platform has helped brands like PepsiCo cut per-asset production from hours to minutes and retail media networks shrink campaign go-live from ten weeks to under two.
JustAI
JustAI (formerly Just Words, legally Choice AI Inc.) is a San Francisco AI-native marketing platform that turns lifecycle content into an always-on experimentation engine. Its AI agents - strategy, creative, decisioning and data - predict high-value moments, generate on-brand message variants across email, SMS and push, test them against real users, and shift traffic to the winners while compounding learnings across campaigns. Founded in 2024 by Neha Mittal (ex-Twitter and Pinterest growth lead) and Jeff Hara, the company graduated from Y Combinator's Winter 2024 batch and works with consumer brands including Grammarly, ClickUp, Notion, Lemonade, Coursera and Thumbtack.
Neha Mittal
Neha Mittal is the CEO and co-founder of JustAI (formerly Just Words), a Y Combinator W24 startup in San Francisco building an AI-first marketing engine that continuously writes, tests, and optimizes copy across email, push, SMS, and landing pages. Before founding the company in 2024, she led Retention and Growth product teams at Pinterest and Twitter, where a single notification tweak - changing "Elon tweeted" to "Elon just tweeted" - added roughly 800,000 users and planted the seed for her company. A computer engineer turned product leader, she earned a master's at UC Berkeley's School of Information and has raised about $2.2M in seed funding from Cloud Capital, Peak XV Partners, and Y Combinator.
Siteimprove
Siteimprove is a Danish-founded SaaS company that helps organizations build accessible, high-performing, and compliant digital experiences. Its platform unifies digital accessibility, web analytics, SEO/AEO, content quality, and governance into a single suite, increasingly powered by the Siteimprove.ai agentic content intelligence engine. Used by thousands of enterprises, governments, universities, and healthcare and financial institutions worldwide, Siteimprove turns sprawling, hard-to-audit websites into measurable, standards-compliant assets.
Knotch
Knotch is an independent content intelligence and optimization platform that helps enterprise marketers measure, prove and improve the performance of their content. Founded in New York in 2012, it grew from a consumer opinion app into a Fortune 500 martech vendor, and in 2025 rebuilt itself around AI agents - launching AgentC, an AI-staffed marketing service with outcomes-based pricing.
vidIQ
vidIQ builds AI-powered software for YouTube creators - analytics, keyword research, thumbnails, scripts, and an AI Coach trained on channel data. Founded in 2011 by veterans of Viddler, the San Francisco company helps more than 20 million creators figure out what to post, why it works, and what to do next.