Admincontrol Preparation Portal
Get due diligence ready before the buyers arrive
Admincontrol Preparation Portal is a private, sell-side data room where your own team gathers, structures and reviews every document a transaction will need, months before anyone external is invited in. When the process starts, the data room is already built.
- Open a private portal yourself and start uploading the same day
- Structure and index the whole file with your own team, nobody else
- Turn it into a live data room the moment buyers are invited
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The trusted solution for more than 10,000 M&A transactions
Build the structure before the documents arrive
Start from an adviser-approved folder structure and index designed for M&A, so your team fills a proven framework instead of inventing one under deadline.
- Due diligence templates. Open with a proven folder structure and index. Learn more →
- Unlimited storage. Load the whole document set, with no cap on volume.
- Guided set-up. Onboarding, indexing and project management are included from day one
Work with your own team, and nobody else
Only the people preparing the transaction can reach the portal. No buyer group exists yet and no Q&A is running, so nothing is exposed while the file is still incomplete.
- Unlimited sell-side users. Bring in finance, legal and your advisers at no extra cost.
- Security and access control. Set permissions per user, group and folder. Learn more →
- Task management. Versioning, secure viewing and dynamic watermarks. Learn more →

Run the transaction in Admincontrol Data Room
Each one you open from the dashboard is a full Admincontrol Data Room, with the same controls whether it is your first deal of the year or your fifteenth.
- Permissions per user, group, folder and file, plus watermarking
- Q&A routed to the right expert and kept against the right document
- A full log of every view, download and action, ready to export
Everything you need to run more than one deal at once
Due diligence templates
Open with a best-practice folder structure and index built for M&A.
Unlimited storage
No volume cap, so the whole document set fits from the first upload.
Unlimited sell-side users
Bring in every internal team and every adviser without watching a seat count.
Task management
Assign, track and complete preparation tasks against the right documents.
Security and access control
Permissions per user, group and folder, with two-factor authentication.
One-step upgrade
Invite a buyer and the portal becomes a full Admincontrol Data Room.
See the platform in real-world conditions. Book a demo and discover how Admincontrol simplifies deal management.
Focus on the deal, not the setup
Stakeholder training
Onboarding and training are always included to help your team get started with confidence from day one.
Personal client advisor
You will have a dedicated contact who provides hands-on support and helps with specific tasks when needed.
Premium local support
Our expert team is available 24/7 by phone or email to assist you, wherever you are based.
Online help centre
Access clear guidance, answers to common questions and helpful tips anytime through our self-service knowledge base.
Tested, certified and compliant
File encryption
We ensure your confidential information is securely stored and transferred thanks to the 256-bit AES encryption.
ISO 27001:2022 certification
Your sensitive data is handled with strict controls, audited processes and a proven commitment to keeping your information safe.
GDPR compliance
Admincontrol is fully GDPR compliant, ensuring your data is processed, stored and accessed in line with the EU’s privacy regulations.
SOC 2 Type II
Admincontrol's SOC 2 Type II Report covers the AICPA’s "Trust Services Principles and Criteria" for secure data processing and storage.
Request access to Admincontrol Preparation Portal
Fill out the form to get access to Admincontrol Preparation Portal.
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FAQ
A preparation portal carries everything the sell side needs before a process starts: upload, folder structure, index, tasks and redaction. What it does not carry is buyers. There is no buyer group and no Q&A until you upgrade, which is what keeps the material private while it is still incomplete.
Most teams run one for one to six months before inviting buyers. Private equity owners often open one when a company joins the portfolio and keep it running for the whole holding period, so the file is current whenever an opportunity appears.
Invite a user with a buyer role. You are notified that the subscription is changing and asked to confirm. Once you do, the full data room is available with your structure, documents and permissions already in place.
Only the people you invite from your own side. Access is set per user, group and folder, with two-factor authentication, and every action is recorded in the audit trail.