Every software company is racing to bolt an AI agent onto its own product. Gradial is betting the real money is in the gaps between them.
The Seattle startup has raised $65mn in Series C funding to build what it calls an operating system for marketing: a layer of AI agents that execute work across the dozens of tools a large organisation already runs, rather than a separate bot trapped inside each one.
The round, revealed by Axios, was led by Insight Partners and values the company at $675mn. Existing backers VMG, Madrona and PruVen Capital took part, bringing Gradial’s total raised to more than $110mn over the past 16 months.
“Gradial is competing to be the AI glue that makes it all work together and makes it delightful for the marketer and super efficient,” chief executive Doug Tallmadge told Axios. “You should have an agent that spans across your workflow, not a separate agent for every step of the workflow.”
In practice, that means plugging agents into systems such as Adobe, Salesforce, ServiceNow and Databricks, then handling the operational grind of getting content live: authoring, quality assurance, brand-compliance checks and routing updates through a company’s existing approval chains. One use case taps directly into the year’s hottest marketing anxiety.
Gradial’s agents can spot where a brand is missing from AI-generated answers, draft the fixes, push them through approval and publish them across systems, without a human queuing up an agency ticket.
It is a bet on orchestration rather than yet another point tool, the same instinct drawing capital to startups building an orchestration layer for enterprise AI as companies deploy agents faster than they can wire them together. Gradial’s pitch is that marketers should be freed to focus on strategy and creativity while the agents handle the plumbing.
Some of the earliest adopters came from heavily regulated sectors, healthcare and financial services, which Tallmadge says valued the ability to encode compliance rules into workflows so that agents apply requirements humans might miss.
Gradial’s client list now includes AWS, Prudential, T-Mobile, Vanguard, Kaiser Permanente and US Bank. T-Mobile, the company says, cut its campaign-execution time by 80 to 90 per cent, a figure cited by one of the carrier’s own executives rather than independently verified.
The four co-founders met at Dartmouth and launched Gradial in 2023, shortly after ChatGPT’s debut. Tallmadge and chief technology officer Deip Kumar are both SpaceX alumni; chief growth officer Anish Chadalavada worked on AI strategy at Microsoft.
The 100-person company plans to use the new money to hire across engineering, sales and marketing, as the broader wave of enterprise AI agents moves from pilot projects into the systems companies run every day.


