The company behind SYNC.

iSyncSO builds SYNC, an AI agent for B2B sales that researches every account first, and CIDE, the engine that decides whether there is a reason to write.

Why we built it.

Most sales email is written before anyone has looked at the company it goes to. We built SYNC to do the looking first, and to stay silent when there is nothing to say.

iSyncSO B.V. was founded in 2025 and is based in Doorn, the Netherlands.

Where we are.

SYNC is in early beta. We run it on our own outbound and with a small number of client teams, and we publish what we measure, including what fails, under Research.

The dated facts about the company, the product and the engine are on Facts, and what changed, and when, is in the Changelog.

How we work.

Measure before we claim.

Numbers on this site come from our own data. Where we do not have one yet, we say so.

Rules live in the product.

A promise we make here is enforced in SYNC, not a line in a brochure.

Europe first.

Dutch outbound in Dutch, from your own mailbox, with workspace data stored in the EU.

Less, finished.

One job done completely beats ten done halfway.

Get in touch

pressinnovate@isyncso.comPress kit and logos on request.

sales and supportinnovate@isyncso.comFor teams trying SYNC or already using it.

careersRoles we are shapingWe hire when there is a job to finish.

See who should buy from you this quarter.

Leave your work email. SYNC reads your company’s website and sends you a first look: what you sell, who probably buys it, and up to five companies scored A to D, each with its source.