Sandra Versluisje founded Beamprobe to fix the gap between £20 file-sharing tools and £750/month enterprise virtual data rooms. UK founders running a £2M seed raise should not pay procurement-grade prices for tooling they need three times a year.
Sandra writes the Beamprobe blog. The articles cover UK GDPR file sharing, M&A clean rooms, due diligence workflows, virtual data room pricing, and the practical mechanics of running a fundraise or M&A process under UK law.
Beamprobe is built in the UK, hosted in Germany (Hetzner) with Cloudflare R2 EU storage, and used by fundraising teams, M&A advisors, accountants, and solicitors. Sandra is the founder and primary author of Beamprobe's product documentation, customer-facing content, and security posture.
Articles by Sandra
Retail M&A Clean Room: Sharing EPOS and Category Data Safely
Retail M&A is the hardest setting for data sharing in UK dealmaking, because the buyer and seller are usually direct competitors. This guide covers what a retail clean room ringfences, why the CMA cares, and how to run one without enterprise tooling.
CPG and FMCG M&A Clean Rooms: Handling Scanner and Trade Data
CPG and FMCG manufacturers competing in the same categories cannot share pricing, trade spend, or retailer terms freely during a deal. This guide covers what a clean room ringfences, why anonymising the retailer dimension matters, and how to run one.
Virtual Data Room Pricing Guide (2026)
Virtual data room pricing in 2026 splits into three models: flat monthly fees, per-user, and sales-led per-deal. This guide breaks down what each vendor actually charges, what drives the difference, and how to size your spend to the deal.
Online Data Room: UK Buyer Guide (2026)
An online data room is a web-based, secure repository for confidential business documents. UK SMBs use one for fundraises, M&A, due diligence and client onboarding. This guide explains what counts as an online data room, when you actually need one, and how the main UK options compare on pricing, residency and setup speed.
Data Room for US Startups: 2026 Buyer Guide
A virtual data room for US startups is the secure repository where SAFE-round investors, Series A counsel and acquirers read your diligence pack. This guide covers what to put in a Delaware C-Corp data room, how US-relevant tools compare on price and residency, and when a non-US vendor makes sense as a faster, cheaper option.
Introducing Quick Share: one PDF, one short link, page-level analytics (£9/month)
Quick Share is a new product on Beamprobe for users who need to send a single PDF rather than a full data room. Short link, per-page analytics, NDA gate, QR code, and the ability to swap the PDF without breaking the link. From £9 a month, flat.
M&A Cleanroom Services UK: What's Included, Cost, Setup
An M&A cleanroom (or clean room) is a tightly scoped, audit-logged document space used in UK M&A when competition law restricts who can see what. This guide covers when one is mandatory, what M&A cleanroom services include, what controls regulators expect, and how to run one without enterprise pricing.
Virtual Data Room Free Trial: What to Actually Test in 7 Days
Most virtual data room free trials end without a buying decision because nobody set up the right tests. Here is the 7-day checklist that gives you a real verdict before the trial ends.
Data Room for Startups UK: What to Include (2026 Guide)
UK SMEs need a data room that scales between a deck shared with two angels and a multi-bidder sale at £20m. This guide covers pricing, residency, and shortlists for SMEs without the enterprise tax.
11 Best DocSend Alternatives in 2026 (Free + Paid)
DocSend works, but it's $15/user/month and US-hosted. Here are 11 alternatives - free options, UK-based picks, and what's actually worth switching to for fundraising, M&A, or client portals.
Best UK Data Room Providers in 2026: Compared and Ranked
The pillar guide to virtual data rooms for UK SMBs and fundraising teams. Setup, document checklist, pricing reality check, and how to avoid the £300/month enterprise tax.
Best Virtual Data Rooms 2026: Compared by Price & Features
An honest comparison of the seven virtual data rooms UK fundraising teams actually evaluate in 2026 - pricing, residency, features, and which is built for which deal size.
M&A Data Room for UK Founders: Checklist and Guide 2026
If you are about to sell your UK company, the data room is the document the buyer's lawyers spend the most time inside. This is what to put in it, in what order, and why.
Investor Update Templates UK: Free Download 2026
Two investor update templates UK founders use post-funding - monthly and quarterly. What to include, what to skip, and how the tracking tells you which investors to ask for help.
Data Room for Due Diligence UK: Checklist + Guide
A founder-built walkthrough of setting up a UK due diligence data room - what investors and acquirers expect, in what order, and the mistakes that cost founders weeks of timeline.
Cheap Data Room Software: What You Actually Get for Under £50/month
Five virtual data rooms costing under £50/month - Beamprobe, Papermark, Onehub, Digify, ShareVault. Honest comparison of what's actually included at this price point.
How to Send a Pitch Deck to UK Investors (And See Who Reads It)
Sending pitch decks to UK investors in 2026 - what tracking actually shows, when to NDA, when not to, and the follow-up rhythm that converts interest into a meeting.
Secure, GDPR-Compliant Client Portals for UK Accountants
Honest comparison of the five client portals UK accountants actually evaluate in 2026 - built around UK GDPR, ICO, and ICAEW practical requirements rather than US marketing.
Secure File Sharing for UK Solicitors: An ICO-Aware Guide
What UK solicitors should know about secure file sharing in 2026 - SRA confidentiality, UK GDPR Article 32, ICO position, and the four tools small/mid UK firms shortlist.
GDPR-Compliant File Sharing for UK Businesses 2026
What "GDPR-compliant file sharing" actually means for UK businesses in 2026 - the ICO position, when email fails the test, the seven-point compliance checklist, and how to build a defensible workflow.
Encrypted File Sharing: What "Encrypted" Actually Means in 2026
Most "encrypted file sharing" claims describe one of three different things. This guide explains the real distinctions - at-rest, in-transit, end-to-end - and what UK GDPR actually requires.
Free Pitch Deck Templates for UK Founders
Five free pitch deck templates UK seed founders use in 2026 - Sequoia classic, YC, Local Globe, Atomico-style, and a UK-specific 12-slide template you can copy.
Free Virtual Data Room Tools: Top Options for 2026
Five free virtual data rooms worth using in 2026 - Beamprobe Free, Papermark Free, Onehub Free, Bit.ai Free, and the iDeals trial. What's actually included and what isn't.
How to Send Confidential Documents (Without WeTransfer's Holes)
Sending confidential documents safely in 2026 - why WeTransfer and email fall short for sensitive data, what UK GDPR requires, and a four-step process for any UK business.
UK Seed Pitch Deck Guide: What Investors Want 2026
Step-by-step guide for UK founders writing a seed pitch deck - slide-by-slide structure, what UK VCs actually want to see, and common mistakes that kill rounds.