Daniel Etra and the arithmetic of staying

When Daniel Etra stepped aside as RethinkFirst’s chief executive, he counted the years in two ways. There were more than 17 at the company he had co-founded in 2007. Then there were more than 22 with Eran Rosenthal, the business partner with whom he had built two companies. The second number makes the first more interesting. A company can change its products, customers and investors. These two had kept choosing the same colleague.

In January 2025, as Ben Semmes took over the CEO role, Etra’s farewell looked back to “an idea on a piece of paper.” He thanked employees, customers and investors, then gave Rosenthal a particular place in the account. The familiar founder’s story usually has a person at its center and a supporting cast around the edges. Etra’s own telling made room for a second protagonist.

It also supplied a useful place to begin looking backward. Before the software company and the long tenure, there had been financial analysis, imported equipment, management consulting and printed materials for retailers. His career had accumulated quite a few practical nouns before it acquired the word founder.

A résumé with several working parts

Etra was born and raised in New York City. He studied economics at Yale and later earned an MBA at Harvard Business School. Those credentials make a tidy line on a biography. The jobs around them make a more varied picture: transactions at Wasserstein Perella, an operating role at Promodex, consulting at Bain & Company, and eventually a business of his own.

At Wasserstein Perella, his work involved mergers and acquisitions. At Promodex, he served as managing director of an importer and distributor of consumer appliances and industrial equipment. A transaction and a distribution business ask rather different questions. One asks what a company is worth. The other has to keep a company functioning after everyone has agreed on the price.

His own account of those early years connects the experiences. Banking taught him to assess financial performance. Managing an operating business taught him about growth. Consulting gave him work analyzing strategy across industries. Read together, the roles suggest an apprenticeship assembled from several employers, with no single industry supplying the whole curriculum.

Banking, distribution and consulting each supplied a different view of a company. A balance sheet describes its performance. An operating role exposes the daily decisions behind the figures. A consultant examines how those decisions fit a strategy. Etra eventually brought experience of each kind of work to his own business.

The small print was a business

R.E.R. International, which Etra co-founded and led, supplied printed materials to the retail industry. It is an easily overlooked chapter if you begin with his later CEO title. Yet printed materials are satisfyingly concrete. An apparel business may sell a look; someone still has to supply the things attached to the merchandise.

A partnership with BizSlate puts detail into that chapter. The arrangement helped businesses obtain UPC tickets, hangtags and item-level RFID tags. Etra described the aim in practical terms: making supply-chain work easier and more affordable for small and medium-sized businesses. The objects were small. The process around them involved trading partners and their requirements.

There is something pleasing about finding hangtags in a software founder’s history. They resist the temptation to describe every earlier job as preparation for an inevitable triumph. They were products, with their own buyers and uses. R.E.R. was a company in its own right before it became a paragraph in the biography of somebody known for another company.

The continuity is still worth examining. Both the printing venture and the later software business required an understanding of what organizations needed to do their work. That resemblance does not make the industries interchangeable. It does make Etra’s shift between them easier to follow: the product changed, while the obligation to understand a customer remained.

Two people, two companies

RethinkFirst began in 2007. Etra became CEO; Rosenthal was the co-founder associated with the president and chief operating officer roles. Their partnership crossed the boundary between one venture and another. By the time they wrote their departure messages, each could look back on more than two decades of working together.

Rosenthal’s account supplied its own emphasis. He remembered two profitable companies, multiple financing rounds and two exits. He also described a friendship that would continue beyond the transition. Business partnerships have a public vocabulary of titles and transactions. In this case, both partners chose to put the relationship into the public record too.

In 2019, Etra and Rosenthal were recognized together with a Leadership Award. In the group photograph, they stand beside one another at the right, each holding a plaque. It is a formal event picture, complete with the slightly awkward geometry that awards require. It also happens to illustrate the point: two names, two responsibilities, one long-running enterprise.

Their farewell messages make a companion piece to that photograph. Six years after the awards, each founder still put the other near the center of his account. Rosenthal remembered the work of building a vision, culture and technology. Etra recalled venture funding and the companies they had created together. Both gave their colleagues and customers a place in the story of what had been built.

The years between the announcements

In August 2014, Rethink announced a $10 million Series C financing co-led by Beringea and Arboretum Ventures. Michael Gross and Paul McCreadie were joining its board. The intended uses of the money included sales and operational hiring, as well as further development of the company’s platforms. Seven years after founding, the next step involved more people and more product work.

Funding numbers travel well. Hiring plans tend to stay home. Yet the latter explain what the former is for. For a chief executive, a financing round creates a fresh set of decisions about whom to recruit and what to build. The public announcement offers a glimpse of Etra’s job as the company grew beyond its original proposal.

In August 2020, Rethink announced a strategic investment from K1 Investment Management. K1 brought an enterprise software focus and resources for operations and acquisitions. It marked another stage in a business Etra and Rosenthal had been building for 13 years. The announcement belongs to that longer chronology, rather than standing alone as a sudden arrival.

By then, the company’s customer base included more than 300 school districts and more than 25 Fortune 100 companies. Those are dated figures from the 2020 announcement. They describe a business selling into institutions with different budgets, purchasing processes and expectations. Reaching several kinds of organization makes the work of coordination part of the product’s commercial life.

An overnight success needs a calendar

Etra had already offered his preferred timescale in 2019, invoking “the 10-year overnight success.” His advice to entrepreneurs paired persistence with a willingness to adjust strategy as conditions changed. The combination matters. Staying with a business for years involves repeated decisions about what should continue and what should be revised.

“One can never be complacent when it comes to continuous improvement”

Daniel Etra · 2019

His description of competition put customer needs and continuing improvement near the center. There is no especially glamorous object in that advice. It asks a company to keep paying attention after it has already sold something. For a founder trained in transactions and operations, that is a demanding assignment: the customer gets another vote every time the product is used.

During his CEO years, the calendar included staff meetings, product reviews, client presentations and investor calls. Each audience needed something different from him. Employees needed decisions. Customers needed the product to make sense. Investors wanted an account of the business. A chief executive’s title compresses these recurring appointments into three letters, which is economical of everyone except the person holding it.

Outside work, Etra placed value on time with his family. It is a small detail beside the financing rounds, but it restores an ordinary unit of measurement. Seventeen years is also a great many evenings. A long tenure occupies a life as well as a position on an organizational chart.

Knowing when to hand over

When Etra announced that he was stepping aside, he wished Semmes well and thanked the people who had helped build the company. The farewell also returned to Rosenthal, the colleague who had been there across both ventures. Its emotional center was a working relationship that had lasted longer than either company’s founding story.

RethinkFirst has since moved through another leadership transition. Dinesh Senanayake became CEO in March 2026. Etra’s place in the story is co-founder and former chief executive, with a tenure that ended before those later decisions. A company’s continuing life gives the founding chapter an ending without making it disappear.

What remains distinctive about Etra is the combination of variety and duration: different kinds of work, followed by years spent building with the same partner. The printing business belongs beside the software company. The operating jobs belong beside the degrees. And the partnership belongs beside the financial milestones. Put those pieces together and the career acquires a shape that a CEO title alone cannot provide.