One Mighty Mill: Funding Rounds, Investors & CEO

About One Mighty Mill

One Mighty Mill makes organic whole-wheat bread, bagels and tortillas for grocery shoppers and schools. It crushes whole wheat berries between millstones, which keeps the bran and germ in the flour. The company buys its wheat directly from organic farms, and bakeries turn the flour into finished goods, such as the bagels baked in Brockton, Massachusetts.

Childhood friends Jon Olinto and Tony Rosenfeld, who also co-founded the b.good restaurant chain, opened One Mighty Mill's first mill and bakery in Lynn, Massachusetts, in 2018. The company is based in Boston and now runs eleven stone mills in Massachusetts, New York and California. Its first sale was bagels for Boston Public Schools. Today Costco sells its bread in the U.S. and Mexico, and it has a contract to supply bread to three California school districts. Full-time employees receive equity after a year, and 23 of them are owners.

Funding Rounds (SEC Form D)

First sale	Filed with SEC	Amount sold	Investors	Avg. check	Terms	Filing
Aug 12, 2026	Aug 17, 2026	$10,325,595fully sold	42	$245K	Equity, Securities on exerciseRule 506(b)	Form D ↗

First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.

Rounds announced by One Mighty Mill

What the company said publicly about its funding. Announced amounts can differ from Form D figures: an announcement can combine several closings, and some money is raised without a Form D.

Announced	Round	Amount	Investors	Source

Why Investors Backed One Mighty Mill

The case for One Mighty Mill is simple. Over the last century, industrial mills mostly replaced the stone mills that once made America's flour. One Mighty Mill grinds organic wheat whole on its own stone mills and sells the bread through chains such as Costco. It also told its bookkeeping firm that sales roughly doubled in a year, to $25 million.

The problem it targets

“Americans eat 130 pounds of flour a year,” co-founder Jon Olinto told CBS Boston in 2024. He says America chose industrial milling because “we want faster, we want cheaper and we want shelf stability.” Industrial processing stripped bread of its nutrients. Olinto also argues that shoppers have had “no alternative,” because “this one system makes one type of flour which is in all of our food.”

What the product does

One Mighty Mill crushes the whole wheat berry between stones, so the bran, germ and endosperm stay in the flour. Its range includes four breads, three bagels and a whole-wheat tortilla. The breads are USDA organic and contain no seed oils, refined sugar or artificial preservatives. It buys wheat straight from organic farms. It also builds its mills near local bakeries, ideally within 300 miles of the farms. For example, a bakery in Brockton, Massachusetts, turns flour from the company's Hyde Park mills into bagels, CBS Boston reported.

Progress so far

The company shared sales figures in a June 2026 client profile by its bookkeeping firm, Siegel Solutions. Sales grew from $12 million last year to $25 million this year, according to the profile. The profile adds that the company aims for $50 million in revenue by 2028. Costco now carries its bread in the U.S. and Mexico. The company milled 2.5 million pounds of local wheat in its eighth year, up 67%. That year it signed its first California school contract, covering three districts. Earlier, in February 2020, Whole Foods gave it a regional supplier award, Nosh reported.

Who backs it

One Mighty Mill has not announced a funding round or named a lead investor. As of 2026, One Mighty Mill has five directors, and three of them come from other food companies. Charles Coristine is CEO of LesserEvil, the organic snack maker that Hershey agreed to buy in April 2025. CNBC, citing the Wall Street Journal, put the deal at a reported $750 million. Shane Emmett co-founded Health Warrior, a chia bar maker that PepsiCo bought in 2018. Yoon Chang became a co-owner of the chocolate maker L.A. Burdick in 2016, the Keene Sentinel reported. Olinto and Scott Babka are the other two directors.

How the market is moving

Big food companies have been buying better-for-you brands. In January 2025, Flowers Foods agreed to buy Simple Mills, a maker of crackers and baking mixes, for $795 million in cash. Flowers estimated Simple Mills' 2024 sales at $240 million, up 14%. Three months later, Hershey agreed to buy LesserEvil. Both buyers pointed to demand for better-for-you snacks.

We wrote this summary from public statements by One Mighty Mill and its investors. It is not investment advice.