What Stackfield does

Stackfield GmbH is a Munich-based B2B SaaS company founded in 2012 that operates an all-in-one collaboration platform targeted at organizations with sensitive data requirements. The platform combines project management (tasks, workflows, timelines, portfolios, network diagrams, tree view), team communication (group chat, discussions, comments), document collaboration, video conferencing with screen sharing (up to 30 participants), and whiteboards in a single encrypted workspace. It is positioned as a GDPR-compliant, German-hosted alternative to US-based tools such as Slack, Microsoft Teams, Asana, Monday, ClickUp, and Trello.

The technical differentiator is a client-side end-to-end encryption architecture in which data is encrypted in the browser before transmission and stored encrypted at rest, such that Stackfield itself cannot decrypt user content. The platform is offered as a multi-tier subscription (Business, Premium, Enterprise) on monthly or annual billing, with a 14-day free trial, and is accessible via web, native iOS and Android apps, and Mac and Windows desktop applications. Enterprise features include SAML/Active Directory SSO, API provisioning, unlimited organization umbrella management, custom modules, and personal account management. Certifications include ISO 27001 and BSI C5, with all servers hosted in Germany. Stackfield also offers an optional on-premise deployment.

Commercially, the company uses a hybrid go-to-market combining product-led self-serve signup, referral-driven acquisition (nearly 80% of first 100 customers came through word-of-mouth), content marketing and SEO against "secure alternative" keywords, and direct enterprise field sales for larger accounts. Vertical focus spans government and public infrastructure, law firms, banking and private equity, research and innovation, agencies, insurance, healthcare and pharma, works councils, churches, automotive and engineering, and education — all segments with elevated data-protection requirements. After operating bootstrapped for roughly twelve years, Stackfield took its first external funding round from Nordwind Growth in March 2024, and has since added an AI text-assistant feature (2025) and visualization upgrades (2024).

Name

Stackfield

Legal name

Stackfield GmbH

Website

https://stackfield.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

Stackfield is a Munich-based SaaS company offering an end-to-end encrypted all-in-one collaboration platform — combining project management, team communication, document collaboration, and video conferencing — for European organizations with sensitive data requirements in regulated verticals such as government, legal, banking, and healthcare.

Ownership category

akta.pro rank

Headquarters

HQ city

München

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Subscription Licensing: Tiered subscription model based on per-seat licensing with Business, Premium, and Enterprise plans offered on monthly or annual billing cycles. The 14-day trial allows users to test all features before committing to purchase.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Stackfield provides an all-in-one SaaS collaboration platform that combines project management (tasks, workflows, timelines, portfolios), team communication (group chats, discussions, comments), video conferencing with screen sharing, document collaboration, and whiteboards inside a single product. The platform is differentiated by client-side end-to-end encryption, German data hosting, and ISO 27001 / BSI C5 / GDPR compliance, targeting organizations with sensitive data requirements. It is sold via tiered per-seat subscriptions (Business, Premium, Enterprise) with optional add-ons such as live Office editing and on-premise deployment.

Product overview

Stackfield is an all-in-one collaboration platform designed for organizations with sensitive data requirements. The core product combines project management (tasks, workflows, timelines, portfolios), team communication (group chats, discussions, comments), document collaboration, video conferencing with screen sharing, and whiteboards into a unified workspace. The platform is offered in tiered plans: Business (core collaboration features), Premium (adds advanced features like recycle bin, email integration, project portfolios, PERT diagrams, whiteboards, group conferences up to 30 participants, and enhanced security), and Enterprise (adds unlimited organizations, SSO, API provisioning, custom modules, and dedicated account management). Add-on modules include Mobile Apps (iOS/Android), Desktop Apps (Mac/Windows), Stackfield AI (text translation/improvement), and the paid OFFICE Add-on (live Office document editing via Collabora). On-Premise deployment is available for organizations requiring local data hosting.

Differentiator

Problem solved

Functional benefit

Products and services

• Stackfield Collaboration Platform All-in-one SaaS collaboration platform combining tasks and workflows, project communication (group chats, discussions, comments), timelines and portfolios, video conferencing with screen sharing, document collaboration, and whiteboards for organizations with sensitive data requirements. Hosted in Germany with ISO 27001, BSI C5, and GDPR compliance.
• Stackfield AI AI-powered assistant embedded in the Stackfield platform that enables users to securely translate, improve, and shorten text within their existing collaboration workspace.
• OFFICE Add-on Paid add-on available for Premium and Enterprise plans that enables live collaborative editing of Office documents (Word, Excel, PowerPoint) directly within Stackfield, powered by the Collabora Online integration.
• On-Premise Deployment Self-hosted deployment option of the Stackfield collaboration platform for organizations that need to run the software on their own infrastructure to meet strict data residency or compliance requirements.

Quantifiable outcome

• Nearly 80% of first 100 customers acquired through referrals, demonstrating high customer satisfaction and product-market fit

Segments11 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability2 records

Feature6 records

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• Element (Matrix): UK-based provider of the Matrix-based Element secure communication platform. Competes with Stackfield's E2EE chat and collaboration offering, especially in government and defense use cases.
• Monday.com: Israeli/US-headquartered work OS listed in Stackfield's comparison pages. Overlaps on project tracking, workflows, and team coordination for SMB and mid-market buyers.
• Asana: US-based work management platform listed by Stackfield as a direct alternative. Competes for project management and cross-functional collaboration, with deeper integrations but weaker EU-compliance positioning.
• Wire: Swiss-headquartered end-to-end encrypted team messaging and collaboration platform. Overlaps with Stackfield on secure messaging for regulated industries and competes for similar privacy-sensitive buyers in Europe.
• Slack: Salesforce-owned team chat and collaboration platform explicitly named in Stackfield's competitive comparisons. Targets overlapping enterprise buyers but lacks Stackfield's end-to-end encryption and EU-only hosting.
• ClickUp: All-in-one productivity platform explicitly targeted by Stackfield's SEO and comparison pages. Competes on bundling tasks, docs, chat, and whiteboards, but lacks Stackfield's sovereign-cloud story.
• Nextcloud: German-headquartered, open-source collaboration and file-sharing platform with self-hosting option and strong focus on European data sovereignty — the most direct alternative to Stackfield for regulated European organizations.
• OpenProject: Berlin-based open-source project management and team collaboration tool. Targets the same European, security-conscious mid-market and public-sector buyers with comparable GDPR-compliant positioning.

Emerging players

• Rocket.Chat: Open-source team communication platform with self-hosting and federation options. Competes for security-conscious and on-premise deployment buyers similar to Stackfield's Enterprise and regulated-segment customers.

Broad incumbents

• Microsoft Teams: Dominant incumbent in team collaboration, bundled into Microsoft 365. The primary competitor Stackfield positions against for secure communications, with broader features but weaker data-sovereignty story in regulated EU accounts.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/stackfieldapp
• Facebookfacebook.com/stackfieldapp
• LinkedInlinkedin.com/company/stackfield
• Instagraminstagram.com/stackfieldhq

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stackfield