brain2

Supercharge your AI with a second brain.

A private second brain for executives and team leaders. It stores everything you do, discuss, or decide, so the AI you work with has every bit of context it needs to supercharge your work.

Book a 30-minute call Where it runs
Connected to everything you already use

Context is everything. So we ensure your brain2 is hyperconnected.

Mail, chat, calendar, files, tasks, meetings, CRM, etc., flow into one vault of plain files, filed and linked while you work. This happens automatically and continuously. AI uses this detailed and updated context to massively increase quality and accuracy of outputs.

  • MailGmail, Outlook · threads and attachments
  • Team chatSlack, Teams · asks and decisions in channels
  • WhatsAppthe deal that happened on your phone
  • CalendarGoogle, Outlook · who you met, when, how often
  • MeetingsWispr Flow, Granola, Teams · transcripts into notes
  • FilesDropbox, Drive, OneDrive, iCloud · PDFs, sheets, contracts
  • TasksAsana, Todoist, Jira · actions and deadlines
  • CRMHubSpot, Salesforce · pipeline and contacts
  • Accountingyour bookkeeper's portal · invoices and cash
  • NotesNotion, Apple Notes · what you already wrote
vault/plain markdown · your cloud drive
├─ context/4
├─ contacts/338
├─ intelligence/
├─ meetings/412
├─ decisions/58
└─ signals/220
├─ projects/19
├─ finance/96
├─ team/31
├─ recruitment/12
├─ business-development/44
└─ tasks/27 open
Only possible with everything connected

Completely revamp the way you interact with AI using your brain2

brain2 · sessionAsanaGmailWispr FlowWhatsApp
You · 08:51
review my open tasks from the last two weeks: everything in asana, plus anything i committed to in meetings, mails, etc. also set up a priority list of critical tasks and give me a game plan to tackle them.
Working7 steps · 41 s
Asanaopen tasks assigned to you14
Gmailthreads, last 14 days61
Wispr Flowmeeting notes, last 14 days9
WhatsAppexport · Dries3
vaulttasks/active-tasks.mdupdated
Asanacreate tasks6 added
Gmaildrafts saved2
brain² · output
Open actions, 20 October to 2 Novemberbrain² · 07:04 today
14 in Asana6 found in meetings and mail3 overdue2 blocked
ActionWhere it came fromDueStatus
Send Audi pricing note to Jacknot in AsanaCall with Jack, 14 Oct17 Octoverdue
Reply to Dries on the NDAnot in AsanaWhatsApp, 30 Oct31 Octoverdue
Review Q4 forecast v7Asana3 Novopen
Second interview with Annanot in AsanaMail from Marie, 28 Oct6 Novadded
Approve Leuven quoteAsana5 Novwaits on site visit
Sign the Ghent leaseAsana8 Novblocked: Ines' redline
Critical, in order

1. Audi pricing note to Jack. 16 days overdue, €640k of pipeline waiting on it. 2. Q4 forecast v7. Pieter closes the month in two days. 3. NDA reply to Dries. Blocks the bridge round. 4. Leuven quote. Thomas needs it after the site visit in four days.

Game plan

Today. Audi pricing note, 30 minutes, draft attached from the call notes. Two-line reply to Dries, draft attached.

Tomorrow. Forecast v7 before Pieter's monthly close on 4 November.

This week. Leuven quote after Thomas' site visit on 6 November. Anna's interview proposed for 6 November, 14:00, Marie notified.

Six items added to Asana, four flagged critical, three marked overdue, two drafts in your outbox for review.

It reads the task tool, then every meeting note, mail thread, and WhatsApp message from the fortnight, finds all commitments, and ranks them by what they block.

Where your data lives is your call

Control your brain2 data.

Choose the deployment of your brain² based on your data control preferences. More control has impact on costs, availability of frontier models, and speed of responses. All prices exclude VAT.

01 · Public cloud

Fast, frontier, fine for most.

Data control

Claude through Cowork, on Anthropic's servers. Your vault stays in your own cloud drive.

Vault in your own drive
Model at Anthropic, US
Model
Claude, always the latest
Runs in
Anthropic's infrastructure, United States
Your data
Training switched off. Conversations deleted after 30 days.
GDPR
Lawful under the EU–US Data Privacy Framework, with Anthropic's data processing agreement on a Team or Enterprise plan. Your data crosses the Atlantic.
Build
Three sessions of 6h total · €5,000 one-off
Running
€100 to €200 a month: one Claude subscription, flat fee, regardless of how much you use it.

The trade: the lowest and most predictable cost, but your data exits the EU.

02 · Private cloud

Frontier models, EU-based.

Data control

Claude or another model, but inside your own cloud-based EU server. Same models, same vault.

Vault in your private cloud
EU based servers
Model
Claude, Mistral, Llama, or others on Bedrock, swapped in a line
Runs in
Your EU based servers
Your data
Fully encrypted on EU-based servers, never used for training and never seen by the model provider.
GDPR
Compliant by design: EU processing, AWS data processing addendum, no transfer outside the EU.
Build
One week · €7,500 one-off
Running
€200 to €400 a month in server/API fees. More for heavy usage.

The trade: EU control, but a usage-based bill instead of a flat fee, roughly twice the public cloud at the same usage.

03 · Local infrastructure

Nothing leaves the building.

Data control

Open source models on a private infrastructure that we install on-premise. Fully local, full control.

Your own hardware, on site
Works without internet
No third party at all
Model
Open models, your choice, updated on demand
Runs in
Your premises
Your data
Never leaves the office
GDPR
No third party in the chain. Compliance is yours: access control, retention, backups, and the processing register.
Build
Three weeks · €15,000 one-off build, plus the server hardware €12,000, which suits one to three heavy users.
Running
About €20 a month of electricity.

The trade: around €27,000 upfront, for no recurring fees, and full control.

Built by

One person, three businesses, one brain2.

Tim Heijmann, portrait in a mountain valley

Tim Heijmann is a strategy consultant in Brussels with 10 years of experience in the aerospace industry. He was managing director and chief financial officer of SkyfloX, a European Space Agency spin-off, and has been advising the European space and energy sectors on markets, business cases, and commercialisation for several years.

In 2025 he built his own second brain to support him in various roles delivering work for clients in the aerospace industry. The Second Brain Company, a brand of his consultancy Windrose Space, builds the same thing for executives and team leaders.

Background
Senior expert in the aerospace industry. Roles include CFO and project manager at European Space Agency 'spin-off' SkyfloX, senior consultant and head of sector at Evenflow, founder of Windrose Space.
Base
Brussels. Works in English and Dutch.
Let's see what a brain² can do for you

Book a call.

Leave your name and how you would like to be reached. Tim gets back to you within one working day to set up the call.

How should Tim reach you?
or write to tim@secondbraincompany.com