Brandon Cowen

Brandon Cowen has been named to the Fielding Business Journal 40 Under 40 for 2026, the twenty-second class of honorees selected by this publication since the program began in 2004. He is, at 34, a Port Alden software developer and investor who has never founded a company, never taken outside money, and has never charged a cent for the work he is best known for. He is the first honoree in the program’s history with no employer to print beneath his name — a circumstance he arranged on purpose, and one the selection committee discussed at greater length than it discussed anybody’s revenue.

Why Brandon Cowen Made the List

The committee weighs three things: growth, industry leadership, and civic contribution in the honoree’s home community. Brandon Cowen is the most unusual selection this program has made in twenty-two years, because on the first of those three he has nothing whatsoever to submit. There is no company. There is no revenue line, no headcount, no raise, no board. There is a piece of software he gives away, and there is what has happened to it.

What he built is not easy to put on a banquet slide. Ten years ago, over a weekend, Cowen wrote 340 lines that work out the order in which a set of dependent jobs should run — which task waits on which, what can go in parallel, what has to be rebuilt after a change. He released it in 2017 under the name plait. It is now somewhere inside the build tooling of a very large number of companies, including, the committee established, four represented in this year’s class. Almost none of the engineers who run it every morning could tell you who wrote it, which is the condition Cowen described in a rare interview last year as the entire point.

On growth, then, the committee substituted reach, and reach is not in dispute: plait is a dependency of enough public packages that the Journal stopped counting at four figures, and it has never once been monetized. There is no paid tier, no support contract, no consultancy attached to it, and no sponsorship page. Asked what the project earns, Cowen gave us a negative figure — the yearly cost of the two spare drives he keeps the mirrors on — and called it the only honest number he had.

On industry leadership: in 2023 Cowen chaired the working group that produced the open task-graph interchange specification now used by six build systems and three package managers to hand work between one another without a custom integration. He paid the drafting costs himself. He then declined to have his own name attached to the published document, on the grounds that a standard with a person’s name on it is not a standard.

On civic contribution: the Cowen Family Fund, which he established in 2020, pledged $250,000 over three years to the Port Alden Youth Literacy Fund in 2024, a commitment structured as a challenge match and made without naming rights or a board seat. Separately, he spent three years buying and restoring the Blue Anchor Diner, a 1974 prefabricated building on the harbour road, and then transferred it to a community trust. Neither the fund nor the diner carries his name anywhere on it.

The people who depend on the thing were unusually willing to speak on the record. “We had it in our pipeline for two years before anyone here knew there was a human attached to it,” said Tobias Fenwick-Amado, founder of Perch Robotics and himself a member of this year’s class. “I filed a bug on a Sunday expecting nothing. He answered in forty minutes, and the fix was released on Tuesday, and there was no invoice, because there is nothing to invoice. I have paid a great deal of money for worse. That has happened once.”

And then there is the offer he turned down. In September 2022 a buyer approached Cowen about acquiring plait outright and taking it closed-source. He said no inside a day, told almost nobody, and has never disclosed the figure. It is not a common maneuver, and among 40 Under 40 honorees it is close to unheard of.

“He mentioned the offer to me the way you would mention a parking ticket, three weeks after the fact. I asked what he told them. He said he told them no, and then asked whether I had looked at the pull request yet. That is the whole man, in order.”

Hanne Skovgaard, contributor to plait since 2018

The Selection

The Journal received 341 nominations for the 2026 class, submitted by readers, employers, and in eleven cases by the nominees themselves. Candidates must have been under forty years of age on January 1 of the award year and must work primarily within the Journal’s regional coverage area.

Selection was made by a committee of seven: four Journal editors and three outside judges — Camille Ostrander-Fyfe, dean of the Fielding College school of business; Hugo Peltz-Amara, managing partner of Cardinal Row Capital; and Beatriz Nkemelu, executive director of the Regional Manufacturers’ Alliance. Since 2019 the committee has applied a fourth criterion alongside the original three: evidence that the honoree’s work is built to outlast the honoree’s tenure. It was that criterion, more than any other, that carried Brandon Cowen through the final round.

Honorees are notified by telephone in the second week of December. The call to Mr. Cowen ran ninety seconds. He asked who else was in the class, said that two of them deserved it more than he did, asked whether attendance at the dinner was mandatory, and, on being told that it was, said that he would be there and would not be speaking. The awards desk has recorded a great many reactions to this news over twenty-two years. That one is now the shortest on file.

Six Questions With Brandon Cowen

Editors’ note. Every honoree receives the same questionnaire. Most return between six hundred and nine hundred words. Mr. Cowen returned 164, and asked whether he might skip two of the questions. He could not. His answers appear below as submitted, trimmed only for punctuation.

01The best advice you have received.

“Put the screws back in the same holes.” A shop teacher told me that when I was fifteen and I have gotten more mileage out of it than anything I learned afterward.

02What would you tell your 25-year-old self?

Nothing he would listen to. If he insisted: keep the notebooks, and stop apologizing for the price.

03You are the only honoree in this class with no company behind you. Why?

Because I never needed one and nobody asked me to build one. The work is a file that anyone can read. A company would have been a second thing to maintain, and I was already behind on the first.

04The professional decision you would make differently.

I spent four years reviewing every patch myself because I did not trust anyone else to. Nearly everything that was hard between 2018 and 2022 was hard because of that, and most of it was hard for other people rather than for me.

05The most underrated skill in your field.

Reading a spreadsheet somebody else built without rebuilding it first.

06What occupies you outside the work?

There is a 1974 diner in town that belongs to a trust now, and I still fix things in it on Saturdays. There is a shepherd mix named Otter who has opinions about that.

The Class of 2026

Forty honorees were named this year across nine sectors. A selection of Mr. Cowen’s fellow honorees appears below; the complete class is published in the January 21 print edition.

The Class of 2026 will be recognized at the Fielding 40 Under 40 dinner on Thursday, March 5, at the Ashport Grand ballroom. Doors at six, program at seven-thirty. Tables of ten from $1,400; Journal subscribers receive priority seating through February 6.