Migdalot מגדלות Write to us

Businesses with purpose, taken to their next stage.

A growth partnership in Jerusalem, led by Ahava Schachter-Zarembski and Dave Mason. We come in as principals, not advisors, and we stay until the business stands taller.

Jerusalem

How we work

We join as partners. We take a stake in the business alongside its owners, so our return comes from the same place theirs does: the business growing. We are not a fund, and we are not a consultancy that leaves a report behind.

We do the work ourselves. Sales, marketing, operations, the right use of AI, and the introductions that open a market or bring in capital. Between us we have spent more than forty years building businesses and institutions, and we bring that to the table in person.

We work with a few businesses at a time. Each one gets our attention until it no longer needs it. The businesses we choose already have customers, revenue, and a reason to exist beyond the money. What they need is the next stage.

The principals

Ahava Schachter-Zarembski

Ahava Schachter-Zarembski

Managing Partner

Ahava has spent more than twenty years building institutions and the partnerships that carry them, across philanthropy, investment, government, and Jewish life. She has led organizations through pivotal transitions, secured millions in capital for the ventures she backs, and built more than two hundred partnerships across sectors and continents.

She founded Global Impact Syndication Services and served as CEO of Sun Buckets. She holds an MA in Conflict Management and International Economics from Johns Hopkins SAIS, spent seven years at Nishmat, and received the Gesher Prize for religious–secular dialogue.

Some of the organizations Ahava has worked with include Cisco, The Coca-Cola Company, UN Women, the World Bank, USAID, the World Food Programme, the Clinton Foundation, and Mozilla AI.

Her own house: Global Impact Syndication Services.

Dave Mason

Dave Mason

Managing Partner

Dave structures the deals. He trained in deal architecture with The Harbour Club, where the craft is making a transaction work for the people on both sides of the table, and he has spent more than twenty years building and buying businesses of his own. What the owners sign is what they get.

He founded Lionstone Ventures, writes business books, and has spent the past few years putting AI to work inside operating companies, where it has to earn its keep.

His own house: Lionstone Ventures.

Write to us.

Ahava Schachter-Zarembski
Dave Mason

If you are already in conversation with one of us, write to that one. If not, either address will do. We read everything ourselves.