I'm Marc, founder of Papermark. I previously worked in a Fund of Funds and was constantly frustrated with existing data room providers—they were either too expensive, too complicated, or lacked the features investors actually needed. That frustration led us to build our own solution for fundraising and m&a, and we've been listening to feedback from startups around the world and investors ever since.
These are the 7 data rooms I recommend to investors based on real-world experience:
A Data Room for Investors is a secure, digital platform where companies provide essential information required by investors to evaluate investment opportunities. It is particularly useful during financial transactions like mergers, acquisitions, and fundraising efforts. The data room hosts critical documents including financial records, strategic plans, compliance certificates, and legal agreements.
Startups raising capital need a data room to present their business professionally to potential investors. It serves as a centralized hub where founders can organize all company documents, from financial statements to product roadmaps, making it easy for investors to conduct due diligence. This organized approach demonstrates professionalism and helps build trust with potential investors.
Common use cases for startups include seed funding rounds, Series A/B/C fundraising, pre-IPO preparations, and M&A transactions. The data room allows founders to control access, track investor engagement, and understand which documents generate the most interest. This intelligence helps startups refine their pitch and focus on what matters most to investors.
Investors use data rooms to efficiently evaluate multiple investment opportunities simultaneously. The structured format allows them to quickly assess a company's financial health, legal standing, and growth potential without drowning in email attachments or scattered documents. Having all information in one secure location streamlines their decision-making process.
Key use cases for investors include conducting due diligence on potential investments, comparing multiple deal opportunities side-by-side, collaborating with co-investors during syndicate formations, and managing portfolio company reporting. A well-organized data room saves investors valuable time and reduces the risk of missing critical information during their evaluation process.
Investors rely on a data room for multiple purposes:
Using a Data Room for Investors not only enhances the efficiency of the investment process but also ensures that all data exchanged remains confidential and well-protected.
When choosing a data room for investors, it is essential to consider several key factors to ensure it meets the needs of both the company and the investors. Below are the primary criteria to evaluate:
Look for a data room with robust security measures, including advanced encryption, two-factor authentication, and dynamic watermarks. These features are crucial for protecting sensitive information against unauthorized access.
The data room should be accessible and easy to use, with a user-friendly interface that allows people of all technical skill levels to navigate efficiently. Multi-language support and cross-platform compatibility are important for accommodating international investors.
Effective document management capabilities are vital. Opt for a data room that supports bulk uploads, easy document indexing, and quick retrieval. Real-time updates and version control are also important for maintaining document integrity.
Ensure the data room includes tools that facilitate collaboration, such as Q&A modules, note-taking capabilities, and secure communication channels. These features help streamline the due diligence process and enhance communication clarity.
The data room should comply with relevant international regulations (e.g., GDPR, HIPAA) and offer comprehensive auditing tools. These are necessary for tracking access and activity within the room, crucial for regulatory compliance and security.
Select a data room provider that offers excellent customer support and training resources. Support should be available 24/7 to assist with any issues that arise, helping users effectively navigate and utilize the platform.
Consider the pricing structure of the data room. It should be clear and scalable, tailored to your specific needs such as user numbers, storage size, or usage duration. Ensure there are no hidden fees and that the pricing model is straightforward.
By assessing these criteria, you can choose a data room that not only secures sensitive information but also facilitates a smoother and more efficient investment process.
When choosing a virtual data room for investor communications, it's crucial to consider both cost and functionality. Our data room price comparison tool helps you evaluate different providers based on:
Current market comparison shows:

This comparison tool helps you make an informed decision based on your specific needs and budget constraints. Remember to consider factors such as:
Website: papermark.com

Papermark is an open-source data room and document sharing platform for investors and venture funds that offers built in page to page analytics.
The platform is designed for modern venture teams looking to easily share documents with ability to self host and whitelabel it.
Full white labelling and self hosting is availble, check pricing
⭐️⭐️⭐️⭐️⭐️ (5 out of 5 on G2)
Highly rated and supported by over 15000 customers and users.
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Website: notion.com
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Notion is a flexible workspace platform that many startups adapt into a makeshift data room for investor communications. While not purpose-built for due diligence, its collaborative features and familiar interface make it a popular choice for early-stage companies with limited budgets.
Notion's template system allows teams to create organized document repositories with folder structures that investors can navigate. The platform's strength lies in its versatility—you can combine documents, databases, and notes in a single workspace.
Enhancing Notion with Papermark: Many teams connect their Notion data rooms to Papermark to add security features and analytics tracking that Notion lacks natively. This integration allows you to maintain Notion's flexibility while gaining visitor tracking, page-by-page analytics, and password protection.

Once connected, you can track detailed analytics on how investors interact with your Notion data room, including time spent on each page and document views.
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Learn more: How to Create a Notion Data Room and Share it with Custom Domain
Website: carta.com
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Carta offers equity management and venture capital support for businesses worldwide. The platform supports special purpose vehicles, fund admin services, and multi-geo/multi-currency share plans.
The company's software helps maintain ownership percentages, equity dilution, and investment round values. While primarily focused on cap table management, many investors use Carta to track their portfolio companies and access company information.
Website: docsend.com

Dropbox DocSend offers solution for businesses to track customer engagement and share documents. Investors use it as a virtual data room.
Using real-time document and video analytics, users can gain valuable insights into what resonates most with customers.
With it businesses can improve their pitches, engage customers more effectively, and ultimately achieve greater success in their endeavors.
Website: idealsvdr.com
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Ideals specializes in Virtual Data Room solutions for M&A transactions and other business-critical tasks.
With a focus on effective document and user management, activity tracking, and team collaboration.
Website: firmroom.com
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FirmRoom is virtual data room solutions for venture funds that offer sharing functionality.
FirmRoom users manage document disclosure, and gain valuable insights into data room activity.
Website: digify.com
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Digify is a document security service, providing protection for important documents.
Digify offers virtual data rooms for managing sensitive company information such as intellectual property, optimized for tasks like fundraising and investor updates, ultimately helping businesses close deals faster.
Start from easy to use secure and modern Virtual Data data room software for investors and venture funds.