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DIG Ventures

www.dig.ventures · London, UK

“The most ambitious B2B SaaS, AI, and Cloud Infrastructure founders at pre-seed and seed stages will build the next generation of category-defining companies. We combine technical depth, operational expertise, and capital to help founders scale across Europe and into the US market.”

$500K – $3M
Check Size
Leads
Lead Tendency
$100M
AUM
~2 Weeks
Timeline
01Investment Thesis

The most ambitious B2B SaaS, AI, and Cloud Infrastructure founders at pre-seed and seed stages will build the next generation of category-defining companies. We combine technical depth, operational expertise, and capital to help founders scale across Europe and into the US market.

Exclusion Criteria

No pure infrastructure plays without enterprise revenue focus, no consumer-only applications, no hardware-first businesses.

02Investment Team
RM
Ross Mason
Founding Partner
MK
Melissa Klinger
Partner
RV
Rytis Vitkauskas
Partner
03F4 Research Brief

DIG Ventures Research

Investment Thesis

DIG Ventures is a European-founded early-stage venture capital firm focused on backing "the most ambitious B2B SaaS, AI, and Cloud Infrastructure founders" at pre-seed and seed stages. Founded by Ross Mason (MuleSoft founder) and Melissa Klinger, the firm combines technical depth with operational expertise to support founders beyond capital. The thesis reflects a belief that ambitious technical founders building modern infrastructure and cloud-native software represent the next generation of category-defining companies. DIG's approach emphasizes practical support, including go-to-market strategy, product development guidance, fundraising coaching, and network introductions to co-investors.

Stage and Check Size Focus

DIG Ventures focuses exclusively on pre-seed and seed stage investments. With Fund II ($100M, closed April 2025), the firm is actively deploying capital across its target stage range. Based on the portfolio of 40+ companies and fund size, the typical check size ranges from $500K to $3M, with pre-seed investments typically at the lower end ($500K-$1M) and seed investments at the higher end ($1M-$3M). The fund maintains reserve capital for pro-rata follow-ons with successful portfolio companies.

Sector and Technology Focus

DIG's investment thesis spans three primary verticals:

B2B SaaS & Enterprise Software: Vertical SaaS solutions, workflow automation, analytics platforms, and operational software for businesses. Examples include Deepnote (collaborative data analytics), Prophecy (low-code ETL), Hook (ML customer success), and Swarmia (developer productivity).

AI & Machine Learning Infrastructure: AI-native applications, conversational AI platforms, AI decision engines, and enterprise AI orchestration. Portfolio includes Rasa (conversational AI), Reef.ai (AI decision-making OS), Nexos (enterprise AI workflows), and Upware (generative AI integration).

Cloud Infrastructure & Developer Tools: Modern cloud-native infrastructure, observability platforms, serverless databases, and developer productivity tools. Examples include PlanetScale (serverless MySQL), Dash0 (OpenTelemetry observability), and Tower (Python data/AI workloads).

Cross-cutting technical themes include data, analytics, security, identity, and compliance automation.

Lead Tendency and Investment Approach

DIG Ventures leads early-stage rounds and typically participates as lead investor in pre-seed and seed financings. The firm takes an active role in shaping round strategy and supporting founders through critical early milestones. Recent investments include Cube3 (December 2025) and OllyGarden (July 2025), demonstrating continued active deployment. The firm supports Europe-to-US expansion, helping portfolio companies navigate market entry and fundraising in the US market.

Portfolio and Recent Activity

DIG has built a portfolio of 40+ companies with notable exits including Gatsby (acquired by Netlify, frontend framework), Makerpad (acquired by Zapier, no-code education), OneGraph (acquired by Netlify, GraphQL API layer), and HeadSpin (mobile testing platform). Recent investments span Q2 2025 through Q4 2025, demonstrating active fund deployment.

Notable Portfolio Companies:

  • People.ai - Sales revenue intelligence ($100M+ ARR, became unicorn)
  • Bubble - Code-free programming language for web apps
  • Comply Advantage - AI-driven AML and transaction monitoring
  • Rasa - Conversational AI infrastructure
  • PlanetScale - Serverless MySQL platform
  • ComplyAdvantage - Compliance and transaction monitoring
  • Rossum - Document automation platform
  • Karat - Technical hiring infrastructure
  • Deepnote - Collaborative data analytics
  • Dash0 - OpenTelemetry observability platform

Team Background and Decision Process

The fund is led by experienced operators and entrepreneurs:

Ross Mason - Founding Partner: Founded MuleSoft (acquired by Salesforce for $6.5B), bringing deep technical and operational credibility in building infrastructure and integration platforms. Serves as founding partner with active investment sourcing and portfolio guidance.

Melissa Klinger - Partner: Brings operational and investor experience, participating in investment decisions and founder support.

Rytis Vitkauskas - Partner: Contributes to investment sourcing and portfolio company support.

The decision process reflects partnership-based governance, with investment committee decisions made collaboratively among the partners. Decision timelines are rapid (typically 2-4 weeks from first meeting to commitment) for well-fitted founders.

Geographic and Founder Profile

DIG is London-based and actively invests across Europe, with particular strength in UK and Central Europe. The firm explicitly supports Europe-to-US expansion, helping founders navigate Silicon Valley fundraising and market dynamics. Typical founder profile includes technical founders with specific domain expertise in their target markets, often with prior experience at scale-ups or technical roles.

Fund Status and Outlook

Fund II ($100M) is actively deploying with recent investments through December 2025. Investor composition includes prominent institutional and strategic backers (Sofina, Granite Capital, Grove Street), alongside tech luminaries including Datadog founder Olivier Pomel and former MuleSoft executives. This positions the fund as a significant player in European early-stage venture capital with strong anchors from the US tech ecosystem.

04Selected Portfolio
Biotech & Life Sciences
Sequence
Consumer Apps & Social
Nila
Developer Tools & Infrastructure
Gatsby
Enterprise Software
People.ai·Rasa·Bubble·Deepnote·PlanetScale·Rossum·Prophecy·Crossbeam·DataGrail·Desia·Hook·OllyGarden·Tower·Auctor·Nexos·Dash0·Birdy·Taktile·AceWaves
HR Tech & Future of Work
Karat·Jack & Jill
Real Estate & PropTech
Consio
Security & Cybersecurity
ComplyAdvantage·Cube3·Flock
Open the full portfolio→
05Recent Updates

Fresh signals from public announcements, essays, and portfolio activity.

See full activity (15) →
Cofide, an open-standards zero trust identity platform backed by DIG Ventures, was acquired by Keyfactor to extend the Keyfactor Trust Control Plane to workloads and AI agents.
EXIT·keyfactor.com
Added recently
DIG Ventures closed $100M Fund II to back pre-seed and seed B2B SaaS, AI, and cloud infrastructure startups across Europe.
NEW FUND·techcrunch.com
Added recently
Tower, the managed platform for Python data and AI workloads, was acquired by MotherDuck.
EXIT·motherduck.com
AUG 25, 2026
DIG Ventures participated in Taktile's $110M Series C round, backing the AI decisioning platform for financial services.
INVESTMENT·tracxn.com+1
JUN 24, 2026
Participated in BirdyChat seed round for professional messaging with WhatsApp interoperability.
INVESTMENT·vestbee.com+4
MAY 13, 2026
06Frequent co-investors
IV
Index Ventures
Both backed 4 of the same companies
Deepnote, Taktile, Gatsby, ComplyAdvantage
BC
Balderton Capital
Both backed 3 of the same companies
Taktile, ComplyAdvantage, Dash0
AI
Angel Invest
Both backed 2 of the same companies
Rasa, Taktile
CC
Crew Capital
Both backed 2 of the same companies
Taktile, Sequence
DE
DCG Expeditions
Both backed 2 of the same companies
Flock, Sequence
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Quick Reference
Check Size
$500K – $3M
Stages
Pre-Seed · Seed
AUM
$100M
Decision
Partnership · ~2 Weeks
Warm Intro
Not Required
Involvement
Board Seat
Location
London, UK
Sector Focus
Enterprise SoftwareDeveloper Tools & InfrastructureSecurity & Cybersecurity
Models
B2B SaaSAI/ML InfrastructureCloud InfrastructureDeveloper ToolsCompliance & Security
Technology
AI/MLCloud NativeData InfrastructureObservability
See all Enterprise Software investors →See all Developer Tools & Infrastructure investors →See all Security & Cybersecurity investors →
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Focus Areas
Enterprise SoftwareDeveloper Tools & InfrastructureSecurity & Cybersecurity

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F4 Intelligence Report · Last Researched August 31, 2026F4 Research Engine