Kaustuva Das and the work before the headline

Kaustuva Das gives himself a one-word description on his personal page: “Busy.” For someone who makes a living helping other people explain themselves, it is an economical introduction. His fuller title is co-founder and Chief Executive Officer of Thermal, the San Francisco communications agency he built with Brenna Sweeney. Other people’s names appear in the interviews and on the magazine covers. Das works on the arrangements around that attention: the explanation, the positioning, the relationship, the reason a conversation should happen now.

That is an awkward profession to photograph. A finished interview looks like two people talking. A company announcement looks like a few paragraphs. The preparation has obligingly removed itself from view. To understand Das’s career, it helps to look at the seams: the agency jobs before Thermal, the clients who stayed, the launches with several moving parts, and the brief public messages in which he thanks the people who helped a conversation reach an audience.

Two degrees, then an agency of his own

His education crosses two professional languages. He holds a Bachelor of Laws from Cardiff University and an MBA from the University of San Francisco School of Management. His employment record includes Chandler Chicco Agency in 2008-2009 and FleishmanHillard in 2009-2012. He also served as a Vice President at Ogilvy Public Relations. These are the visible steps of a career spent inside communications organizations before taking on the responsibility of creating one.

Thermal’s California registration dates to August 2014. Das became its co-founder and CEO; Sweeney is its co-founder and Chief Experience Officer. The titles divide the leadership work without turning either founder into a supporting character. Founding an agency adds a particular complication to communications practice: while helping clients decide how to present their businesses, the founders must build a business of their own. The explanation has to work for prospective clients, future colleagues, and the people already relying on the team.

Das is based in San Francisco. Thermal places its headquarters in Jackson Square and describes a practice that reaches beyond Silicon Valley. Its client work brings the agency into contact with scientists, entrepreneurs, investors, and established companies. The geography is useful, but the assignment is portable. An idea must remain understandable when it leaves the room where everyone already knows the vocabulary. That journey is where a specialist communications firm has work to do.

A launch with unusually good company

One episode in Thermal’s portfolio supplies an unusually tidy pair of dates. On October 6, 2020, Scribe introduced its platform publicly, with a $20 million Series A led by Andreessen Horowitz and a collaboration with Biogen. Jennifer Doudna was among its co-founders. On October 7, Doudna and Emmanuelle Charpentier received the Nobel Prize in Chemistry. A company introduction had landed beside a much larger international announcement.

For Das, Scribe belongs to the agency story rather than a claim of personal scientific credit. Thermal lists the company in its work, and Scribe CEO Benjamin Oakes describes a communications relationship extending from launch through subsequent milestones. The interesting part is the continuity. A news event may give a company a sudden audience; someone still has to explain the company when that audience arrives. Financing, collaborators, and an intelligible account of the business provide more to discuss than a famous name alone.

The pair of dates also illustrates the limits of a publicity calendar. An agency can prepare an announcement. It cannot award a Nobel. Those two activities deserve separate credit, however happily they meet. Das’s business operates on the preparation side: helping a client establish what it wants people to understand and supplying material that can carry the conversation. The calendar occasionally contributes a flourish. It does not volunteer to write the explanation.

The founder has several audiences

Thermal’s public relations offering includes executive communications, media training, leadership positioning, patent communications, reputation management, and scientific narratives. That range makes Das’s occupation more specific than the cheerful phrase “getting coverage.” A founder explaining a company to a specialist faces one set of questions. A business reporter has another. An executive needs to remain recognizable across both conversations while adjusting the detail, context, and starting point.

The agency expresses this through a five-level coverage ladder: technical, industry trade, business and financial, national, and cultural. Each level has a different audience and purpose. Technical attention establishes a conversation among specialists. Business coverage reaches people thinking about companies and capital. Cultural attention carries an idea into a wider public discussion. These are categories in Thermal’s framework, rather than a promise that every client should climb every rung.

There is a useful discipline in that distinction. The same sentence cannot do every job. A precise technical account can leave a general reader wondering why it matters; a memorable line can leave a specialist wondering what it means. The communications challenge is to connect those readers without making either feel tricked. For the CEO of an agency selling this work, clarity has to survive beyond the first persuasive meeting.

The relationship after launch day

Oakes’s account of working with Thermal emphasizes a partnership across milestones. Another client, Retro CEO Joe Betts-LaCroix, describes the team’s help with incoming requests and outgoing messages. These are client judgments about the agency, and they illuminate the less theatrical part of Das’s business. Attention creates decisions. Which request fits the company’s priorities? Which explanation needs revision? What should be repeated, and what has actually changed?

“Thermal has been our communications partner from day one”

Benjamin Oakes, CEO of Scribe
Client testimonial

The agency’s content practice extends to bylined articles, newsletters, whitepapers, scientific posters, and short social formats. Its published approach starts with an original piece of work and develops material for different settings. For a founder, that makes the relationship longer than a press release. An argument may need a full explanation, a short introduction, an answer to a recurring question, and a version that can be delivered aloud without sounding like a document has escaped its folder.

Brand work adds another layer. Thermal offers naming, positioning, identity, voice, and messaging alongside design. Those services connect what a company believes about itself with what outsiders encounter. They also help explain why Das founded an agency with a broader remit than arranging interviews. The website, the executive, and the announcement all contribute to a public impression. If each tells a different story, an audience inherits the editing job.

A room, a moderator, a thank-you

In January 2025, Das shared a short response to an event hosted by Recursion at the San Francisco Mint. He thanked Chris Gibson and the Recursion team for hosting Doudna, and The Economist’s Natasha Loder for moderating. His opening was simple: “This was a very special event.” The note recognizes the people around the conversation. It is a small, documented glimpse of the professional world in which he works.

Thermal’s events offering makes that surrounding work explicit. It includes speaker preparation, press conferences, executive dinners, keynotes, logistics, and follow-up material. A room full of people is the most visible moment in a sequence of decisions. The invitation sets expectations; the moderator shapes the exchange; the material that follows lets the conversation reach people who were elsewhere. A communications founder has to think about all three calendars: before, during, and after.

Das’s public posts also mark the slower occasions. In 2022, he discussed Thermal’s work around the tenth anniversary of Doudna’s 2012 paper. In early 2026, he shared a conversation between Doudna and Ashlee Vance, describing its arrival as something that had taken time. Together, the posts show a working calendar organized around anniversaries, interviews, and gatherings as well as announcements. The public voice has to keep finding useful things to say between launch days.

A company has to live with its sentences

Thermal’s recognition includes the 2020 North America SABRE Award for Crisis Management, credited to UC Berkeley with Thermal. It is a team distinction in an agency founder’s career. The company also lists growth recognition from the San Francisco Business Times and a 2024 place on MM+M’s Best Places to Work list. These are different measures: the work delivered, the business built, and the organization in which that work happens.

The standards Thermal publishes for colleagues include checking claims, maintaining accuracy, taking responsibility for execution, and continuing to learn the subject. They describe an aspiration for the company Das leads. Their practical consequence is straightforward. A persuasive sentence creates an obligation to support it. An agency that helps clients become visible must also help them remain intelligible when the next question arrives. The longer relationship begins to make sense on those terms.

Return to “Busy,” his compact personal introduction. It leaves the grand declarations to the client work. There is something apt about that choice for a founder whose profession so often disappears into the finished result. The interview happens. The announcement makes sense. An executive finds a way to explain a difficult idea to someone meeting it for the first time. Das’s story lives in the work that makes those ordinary-looking outcomes possible.