We need a secure way to prepare and distribute materials for board meetings. What's the best board management software?

For your specific need—securely preparing, controlling, and distributing board materials—I’d shortlist Diligent Boards and Nasdaq Boardvantage. A 2026 comparison also identifies these alongside OnBoard, BoardEffect, Board Intelligence, Convene, and Boardable as leading options.G2 Learn Hub

What I'd evaluate first

Diligent Boards is a strong fit if you want the platform to handle the whole lifecycle: building agendas and board books, distributing sensitive documents, tracking changes, collecting approvals, and managing minutes. Diligent says its platform uses role/permission controls, encryption and audit trails, with ISO 27001-based security practices.Diligent+2

Nasdaq Boardvantage is particularly compelling if your security team has stringent requirements. Nasdaq documents SOC 2 Type II auditing, ISO 27001 certification, MFA, SSO, encrypted content, content segregation, and remote purge capabilities. It also supports automated board-material distribution, approvals/signatures and integrations with Microsoft 365, Google Drive, Teams and Zoom.Nasdaq+2

For a board dealing with highly confidential corporate information, I would make these capabilities non-negotiable:

• Granular permissions for directors, committees, executives and outside advisers
• Encryption at rest and in transit
• MFA and SSO
• Audit logs showing who accessed or changed materials
• Version control so directors always see the current board book
• Remote revocation/purge of downloaded materials
• Secure external sharing for counsel, auditors and other advisers
• SOC 2 and/or ISO 27001 evidence appropriate to your risk requirements
• Mobile/offline access without losing administrative control
• A clear policy for whether the vendor's AI features can access board materials, and whether customer data is used to train models

Bottom line: If you want a mature, full-featured board-governance platform, put Diligent Boards and Nasdaq Boardvantage through your security/procurement process first. The choice should ultimately depend on your organization's size, regulatory requirements, existing Microsoft/Google environment, board workflow, and required security controls—not simply a generic "best" ranking.Diligent+1

diligent.com nasdaq.com

For a board dealing with highly confidential corporate information, I would make these capabilities non-negotiable:

If your priority is secure preparation and distribution of board materials, I’d shortlist Diligent Boards, Nasdaq Boardvantage, and OnBoard rather than using ordinary file-sharing tools. Current 2026 comparisons place these among the leading board-management platforms.G2 Learning Hub+1

Platform	Particularly suited to	Security / governance	Notable capabilities
Diligent Boards	Larger companies and complex governance	Enterprise-grade controls, permissions, secure collaboration	Board books, meeting workflows, approvals, voting, AI-assisted preparation
Nasdaq Boardvantage	Regulated organizations and corporate boards	MFA, SSO, granular permissions, encryption, remote purge	Secure material distribution, annotations, voting, signatures, questionnaires, AI summaries
OnBoard	Organizations prioritizing ease of adoption	Strong board-portal security	Meeting materials, agendas, board books, minutes, approvals and collaboration
BoardEffect	Nonprofits, education and mission-driven organizations	Secure board portal and controlled document access	Board books, committees, annotations, approvals and archives
Convene	Boards wanting collaboration alongside meeting management	Role-based secure document distribution	Collaboration, voting, meeting management and document workflows

What I'd evaluate most carefully

For your particular requirement, don't just compare "security" badges. Ask each vendor to demonstrate:

• Granular permissions: Can management, directors, committees and outside advisers see different materials?
• Version control: Can you replace a document after distribution without accidentally leaving obsolete copies in circulation?
• Remote wipe/purge: Can confidential materials be removed from directors' devices when necessary?
• MFA and SSO: Particularly important if directors are accessing the portal from personal devices.
• Audit trail: Can you see who accessed, downloaded, annotated or distributed material?
• Secure messaging: Can sensitive board communications stay inside the portal instead of moving to email?
• Offline access controls: What happens to downloaded board books when someone's access is revoked?
• Data retention and deletion: Understand what happens to historical board materials and backups.
• Mobile experience: Directors are much more likely to use the system properly if the iPad/mobile workflow is painless.

For example, Nasdaq says Boardvantage provides MFA, SSO, granular access controls, encryption and a remote-purge capability, alongside board-book distribution, voting, signatures and annotations.Nasdaq+1

My practical shortlist

If this is a public company or large enterprise, I'd put Diligent and Nasdaq Boardvantage through a head-to-head demo.

If you're a mid-sized organization where director adoption and simplicity matter heavily, I'd include OnBoard in that demo.

If you're a nonprofit, I'd also demo BoardEffect.

I would not choose based on the vendor's marketing claim that it is "the best." Have the finalists run the same realistic scenario: assemble a 300-page board book → distribute it → make a last-minute change → conduct a vote → revoke a director's access → produce the audit history. That will expose meaningful differences very quickly.

If you tell me your organization size, nonprofit/private/public status, approximate board size, and whether you need Microsoft 365/Google Workspace integration, I can narrow this to 2–3 options and compare security, features, implementation effort, and typical pricing.

If your priority is secure preparation and distribution of board materials, I’d focus on purpose-built board portals, not generic file-sharing tools like SharePoint or Dropbox.

Strong options to evaluate

Platform	Particularly suited to	Security / governance features
Diligent Boards	Larger companies and complex governance	Role-based permissions, encryption, audit trails, secure messaging/data rooms, ISO 27001 framework; strong end-to-end board workflow.Diligent+1
Nasdaq Boardvantage	Enterprise/public-company environments	SOC 2 Type II, ISO 27001, MFA, SSO, granular permissions and remote purge of materials.Nasdaq+1
OnBoard	Organizations wanting a straightforward board-management experience	Published security credentials include ISO 27001, ISO 27701 and SOC 2, along with board-book and meeting workflows.Capterra
BoardEffect	Nonprofits and mission-driven organizations	Encryption, role-based permissions, controlled document access, and published ISO 27001/27017/27018 and SOC 1/SOC 2 credentials.BoardEffect

My practical shortlist

For a corporate board, I would put Diligent Boards and Nasdaq Boardvantage at the top of the evaluation list—not as a universal "winner," but because both have particularly extensive security and governance capabilities documented publicly. Diligent also puts substantial emphasis on controlling the entire board-material lifecycle, including drafting, collaboration, distribution and audit trails.Diligent+1

For a nonprofit board, BoardEffect is worth a particularly close look because its product is explicitly designed around mission-driven organizations and board materials, meetings, committees and approvals.BoardEffect+1

What I'd require in your RFP

Regardless of vendor, I'd make these non-negotiable:

• MFA and SSO
• Granular, role-based access controls
• Encryption both in transit and at rest
• Complete audit logs
• Ability to revoke access immediately
• Protection against forwarding/downloading/printing where appropriate
• Version control for board books
• Secure distribution of revised materials
• Mobile access without leaving uncontrolled copies everywhere
• Document retention/deletion policies
• SOC 2 Type II and/or relevant ISO certifications
• Contractual commitments around breach notification and data handling
• A clear answer on whether AI features use your board materials for model training

The last point is increasingly important: several current platforms are adding AI to board-book preparation, summaries and minutes, so I'd specifically ask vendors how your confidential materials are isolated and retained. Diligent, for example, now advertises AI-assisted board-book creation, summaries, risk scanning and minutes.Diligent+1

If you tell me your organization size, whether it's public/private/nonprofit, approximate number of directors, and whether you need voting/minutes/signatures, I can narrow this to a 2–3 vendor comparison with pricing, security certifications, ease of use, and implementation considerations.

If your priority is secure preparation and distribution of board materials, I’d shortlist Nasdaq Boardvantage, Diligent Boards, and OnBoard. For a typical corporate board, my default pick would be Nasdaq Boardvantage if security and controlled distribution are the top concerns.

My shortlist

Platform	Best for	Security / governance	Ease of use
Nasdaq Boardvantage	Security-conscious corporate boards	Excellent — SOC 2 Type II, ISO 27001, MFA, granular permissions, remote purge	Very good
Diligent Boards	Large/complex organizations	Excellent — strong enterprise security and governance ecosystem	Very good
OnBoard	Modern, easy-to-use board experience	Excellent — ISO 27001, ISO 27701, SOC 2 and other certifications	Excellent
BoardEffect	Nonprofits, healthcare, education	Strong security and governance controls	Good
Convene	Boards wanting granular security controls	Strong	Good

Recent 2026 comparisons similarly put Nasdaq Boardvantage, Diligent, and OnBoard among the leading options.G2 Learning Hub+1

🏆 My pick: Nasdaq Boardvantage

For your particular requirement, Boardvantage stands out because it is designed around the entire board-material lifecycle rather than simply being a secure file-sharing system.

It provides:

• Centralized board books, agendas, meeting materials and minutes
• Granular permissions so materials are only available to authorized users
• MFA and SSO
• Encryption and content segregation
• Remote purge of materials and notes from devices
• Automated distribution and syncing of updated materials
• Secure voting, approvals and electronic signatures
• Integrations with Microsoft 365, Google Drive, DocuSign, Zoom and TeamsNasdaq+1

Nasdaq says Boardvantage is SOC 2 Type II audited and ISO 27001 certified, which is particularly relevant if your board materials contain sensitive financial, strategic, M&A, legal, or personnel information.Nasdaq

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When I'd choose Diligent instead

Choose Diligent Boards if you're a larger organization and want board management to be part of a broader enterprise governance/risk/compliance ecosystem. Diligent offers granular access controls, encrypted storage/transmission and extensive governance functionality.Diligent

diligent.com

When I'd choose OnBoard

I'd put OnBoard ahead of the others if director adoption and a straightforward user experience are especially important. Current security comparisons report ISO 27001, ISO 27701, SOC 2, CSA STAR Level 1, HIPAA and GDPR credentials for OnBoard.Capterra

Bottom line: If I were selecting specifically for confidential board materials + secure distribution + strong governance controls, I'd demo Nasdaq Boardvantage and Diligent first, with OnBoard as the usability-focused alternative.

If you tell me your board size, nonprofit vs. for-profit, approximate budget, and whether you need SSO/ Microsoft 365 integration, I can narrow this to the best 1–2 choices.

For your use case—securely preparing, controlling, and distributing board materials—I’d shortlist Diligent Boards and Nasdaq Boardvantage first.

A 2026 comparison from G2 puts Nasdaq Boardvantage, Diligent, OnBoard, BoardEffect, Board Intelligence, Convene, and Boardable among the leading options.learn.g2.com+1

🥇 My pick: Diligent Boards

Diligent Boards is particularly strong if your priority is keeping drafts, board books, revisions, communications, and final materials inside one controlled environment rather than emailing attachments around.

It supports role/permission-based access, secure data rooms, document version tracking, encrypted storage and transmission, and secure collaboration with external parties such as auditors or counsel. Diligent says its security program follows ISO/IEC 27001 standards and uses 256-bit encryption.www.diligent.com

That matters because the security problem isn't just where the final board packet lives—it's all the versions and conversations leading up to it.

🥈 Strong alternative: Nasdaq Boardvantage

Nasdaq Boardvantage is especially compelling if you're a larger company or have stringent information-security requirements. Nasdaq reports SOC 2 Type II and ISO 27001 certification, plus MFA, SSO, granular permissions, and remote purging of materials from devices.www.nasdaq.com

It also handles meeting creation, automated material distribution, approvals, voting, signatures, and board archives in one system.www.nasdaq.com

What I'd require before buying

For a board portal, I'd make these non-negotiable:

• Granular permissions for directors, executives, committees, and outside advisers
• MFA + SSO
• Encryption at rest and in transit
• Version control/audit trails
• Ability to revoke access or remotely purge downloaded materials
• Secure distribution rather than email attachments
• Offline/mobile access without losing administrative control
• Meeting agendas, board books, minutes, voting and approvals
• Strong SOC 2 / ISO 27001 security assurances
• Data retention/export capabilities so you're not locked in

Bottom line: If you want the safest general-purpose choice for a professional corporate board, I'd start with Diligent Boards. If your organization has particularly demanding security/governance requirements—or you value Nasdaq's governance ecosystem—Boardvantage deserves a serious side-by-side evaluation.

If you tell me your organization size (e.g., nonprofit, private company, public company), approximate number of directors, and whether you need SOC 2/ISO 27001, I can narrow this to the top 2–3 and compare pricing, security, features, and implementation effort.