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Facts about iSyncSO, SYNC and CIDE

Plain facts, each with the day it was last checked. Quote any line. Where a fact is not settled yet, it is in square brackets instead of a guess.

Last updated

The company.

Confirmed by the founders, Gody Duinsbergen.

Company
iSyncSO.
as of
Founded
2025.
as of
Based in
Doorn, the Netherlands.
as of
Postal address
Oude Woudenbergseweg 17, Doorn, the Netherlands.
as of
Sales, support, press, security and privacy
innovate@isyncso.com
as of
Registered as
ISYNCSO, in the Dutch Chamber of Commerce register.
as of
Chamber of Commerce (KVK)
98210424, main establishment in Doorn.
as of

The names.

Three names, one for each thing.

iSyncSO
The company.
as of
SYNC
The product: an agent that researches every account and only writes when it finds a reason it can cite.
as of
Category
An AI sales agent for B2B, the kind of tool often called an AI SDR: it does account research, reads buying signals, maps the buying committee and drafts outreach for a person to approve.
as of
CIDE
Context Injected Data Engine: the engine inside SYNC.
as of
Spelling
iSyncSO, SYNC and CIDE, written this way everywhere. In a title, SYNC by iSyncSO.
as of

The product.

Checked against the product's code.What SYNC connects to

The rule
No dossier, no message. SYNC writes only when it finds a reason it can cite: a usable fact with a source you can open.
as of
Criteria
Up to twelve criteria, written from what SYNC learned about your company and from how you recognise a good prospect. You can edit them.
as of
Tiers
Tier A to D. A and B are worked; C and D are left alone.
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No evidence
A criterion without evidence is marked "could not establish". It is never guessed.
as of
Sources
Careers pages, the company's own site, LinkedIn, the press and public register pages. Email addresses and phone numbers come from a lookup provider.
as of
Sourcing
Every signal and every score links to its source. The business case is SYNC's reasoning from those facts.
as of
Buying group
Seven roles: economic buyer, champion, user, influencer, blocker, indifferent and unknown.
as of
Order
In a contact plan, users hear first and buyers last. Blockers are never written to.
as of
Pace
At most three messages to one person, and three to one account, in any seven days. Never twice to the same person within 48 hours. The limits hold for every message SYNC starts; an answer to a reply and a message you send yourself are not held to them.
as of
A message
An observation, a claim and one question.
as of
Approval
Every email waits for a person to approve it, follow-ups included. Sending on its own comes next, earned over time.
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Mailbox
Email leaves from your own Outlook or Gmail, and replies land in the conversation. You sign in on Microsoft's or Google's own screen. The connection is held by Composio, our connection provider. SYNC never sees your password.
as of
Channels
SYNC sends email. LinkedIn messages and calls are tasks for you.
as of
CRM
SYNC works next to the tools you already use. HubSpot contacts sync both ways, or one way if you prefer; companies and deals are not synced. Salesforce and Pipedrive can be connected; nothing is synced with them.
as of
Languages
SYNC writes its messages in Dutch, English, German or French.
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First run
SYNC puts a task on your dashboard when your first companies are ready.
as of
Data
Workspace data is stored in the EU (Ireland). Our AI model providers process data outside the EU, or in no fixed region; the sub-processor list shows where.
as of
Leaving
Ask us, and we export or delete your workspace data. We answer within one month.
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Prices and access.

Per seat a month, except Managed.Pricing

Access
SYNC is in early beta. Sign up with your work email for a free first look, and we invite you to the beta.
as of
Free
€0, 5 accounts a month, with enough usage to try every feature.
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Starter
€649 per seat a month. One user. About 20 accounts a month, each with a dossier, contacts and prepared messages.
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Pro
€849 per seat a month. One user. About 50 accounts a month, with the same work on each.
as of
Scale
€999 per seat a month. One user. About 120 accounts a month: a full-time seller’s book.
as of
Managed
From €3,999 a month. Managed is a service we agree with you, not a plan you pick in the app: we make the calls and put the meetings in your calendar.
as of
Teams
Teams of 5 or more users: custom pricing.
as of
Nectar
On the paid plans, usage runs on Nectar, a monthly budget. You see when you are approaching the limit; above it, you top up or move up a tier.
as of
Per seat
Each person has their own plan budget, which starts again each month. Plan budgets never pool across a team; top-ups are shared by the workspace.
as of
Billing
Prices are per month. In the app you can also pay a year up front, at twelve times the monthly price.
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VAT
Prices exclude VAT.
as of

CIDE coverage.

The companies CIDE holds on record, from the latest release.The coverage map

Release
CIDE 2.
as of
Companies on record
432,837 companies.
as of
Countries
46 countries. The Netherlands is released; every other country is in training and testing.
as of
Most companies
Netherlands 403,752; United States 10,314; Belgium 7,460; United Kingdom 1,946; Curaçao 1,268.
as of
How it is counted
A company is counted in the country of the office we hold on record, which is not always its head office. 1,837 records carry no country.
as of

Research.

What we measure, including what fails.All research

Published pieces
17 pieces, plus the hotel-staffing case study; the latest piece on 11 November 2026.
as of
Not published yet
Reply, open and meeting rates. Most recorded first opens arrive within a minute of sending, replies were recorded incompletely until mid-September, and a meeting agreed by phone or in a reply is recorded nowhere, so none of these can be trusted as a rate yet.
as of

Something here wrong, or missing? Write to innovate@isyncso.com.

iSyncSO / press

Press kit

What to call us, what we do, and who to ask. Where a fact is not settled yet, it says so in square brackets instead of guessing.

Words

Boilerplate.

one line

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.

boilerplate

iSyncSO is the company. SYNC is the product. CIDE is the engine underneath.

SYNC is an agent that researches every account, reading company facts from public sources, and only writes when it finds a reason. Email addresses and phone numbers come from a lookup provider. Every signal and every score links to its source, with the date it was read. It scores accounts against up to twelve criteria, written from what SYNC learned about a team’s company and from how the team recognises a good prospect, and the team can edit them. It maps the buying group and drafts one message to that team’s writing rules. Every email waits for a person to release it, follow-ups included, and SYNC sends email from the team’s own mailbox. Workspace data is stored in the EU (Ireland); its AI model providers process data outside the EU, or in no fixed region. SYNC is in early beta: teams sign up at isyncso.com/try.

The mark

Logo.

The Signature wordmark: Geist Medium, a dotless ı, and a spark for its dot. Shown here on light and on dark.

Palette

Colours.

Four colours carry the whole identity.

  • Ink#0F1214Text, and the dark panels.
  • Paper#F5F6F7The page, and the light panels.
  • Signal#0E7490The dot in the mark, on light.
  • Signal on dark#22C3DDThe dot in the mark, on dark.
Files

Downloads.

Logo files on request
The mark is awaiting sign-off, so there are no download links yet. Ask and we send the files.Ask for logo files
Images

Images on this site are not press photos and may not be used as photographs of iSyncSO.

Press contactinnovate@isyncso.com
Press kit and logos on request.
Free first look

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.

Add your details

Today SYNC works for companies selling in the Netherlands. Belgium is expected in January 2027.

Free, no card. Confirm your email and your first look arrives within a day. DetailsPrivacy

A person at iSyncSO checks it first.

SYNC reads public pages about your company, not people; you connect no mailbox, and nothing is sent to anyone but you. It opens on a private page, online for 90 days, deleted when you ask. We write to you about your first look and the beta, no sequence.

Other countries are in testing. A first look works for any company website. Our company data is strongest in the Netherlands; elsewhere it may find fewer examples, and some may be from other countries.

See an example