Important projects don’t stall for lack of capital. They stall for lack of a builder.
Funds, family offices and platforms bring us in to build what matters most to them.
A consultant
Hands you a deck.
A scope. A report. An invoice.
Spartzbuilt
Takes a seat and builds.
A seat. A mandate. A clock.
$600M
Zero to public listing
20 yrs
Software, product and data, from first user to scale
Both sides
Raised capital and allocated it, with family offices, funds and hedge funds
Now
Co-founding and operating deep tech in energy and waste
One team. The whole build.
- CompaniesThesis to team to first capital
- Capital structuresWe design it. Counsel papers it.
- Data platformsThe software that runs the deal
- The investment caseThe story capital reads, with the proof
- Hard-asset projectsSite to engineering study to bankable
- ProductsBuilt from the first user up
What we’re building

Landfill Eraser
Landfills removed, not managed. The pile becomes feedstock. The land comes back.
landfilleraser.com
Replete Energy
Waste to methanol for shipping, built at port.
Signature service
Raises don’t die in the pitch meeting. They die in the data room.
A guided investment case, built and run by us. The argument written out, the evidence one click under every claim, and who is reading.
See DataRoomWe take on a few projects at a time. What are you building?
Build lead. Embedded operator. Venture partner on a thesis.
Founded by Dylan Spartz.
info@spartzbuilt.com