Ska Sijia Du

Principal @ Karma Ventures I WEF Global Shaper

📍 Germany🔄 Updated September 2026💼 6 investments📅 7 years investing🗓 Last invested Apr 2025
VC🌍 Germany
6
Total investments
0
Early stage
3
Mid stage
1
Late stage
7y
Years active

Portfolio

6 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Observer
Apr 2025
Patchstack is the leader in open source software vulnerability intelligence, covering the entire lifecycle from detection to mitigation.
Board Observer
Mar 2025
The Open-Source GraphQL Federation Solution Full Lifecycle API Management for (Federated) GraphQL. Schema Registry, composition checks, analytics, metrics, tracing and routing. Deploy 100% on-prem or use our Managed Service. Apache 2.0 licensed, no vendor-lock.
Investor & Board Observer
Sep 2021
We started FreeSWITCH because we wanted to solve our own challenging problems. We could not find a stable, scalable way to implement our 2004 call center as a service product. DIY solutions were a collection of random tools with constant stability and maintenance issues; premade solutions were massively expensive and still required physical data centers anyway. We built FreeSWITCH on our vision of solving those problems, made a community, and used it for insight. This took us well beyond the original goal. FreeSWITCH became so ubiquitous that the world made many vertical products with it that generate billions of dollars a year. At SignalWire, we empower businesses with easy-to-use and customizable cloud communications tools. Programmable Unified Communications supplants one-size-fits-all solutions, sparking innovation and growth. We have harnessed the complexity of CPaaS UCaaS CCaaS and Voice AI and made the entire paradigm available to developers. Come talk to us and we can help you achieve your goals.
Investor
Jan 2021
Sitetracker empowers owners, operators, contractors, and other stakeholders to streamline and optimize the complete asset lifecycle of critical infrastructure. As the leading global complete Asset Lifecycle Management platform, Sitetracker helps innovative companies like Vodafone, Ericsson, ENGIE, Telefonica, Cypress Creek Renewables, Cox, Iberdrola, EVgo, Vantage Towers, Southern Company, Zayo, Tilson, Nextera, EDOTCO, E.On, Axione, and TEP efficiently plan, build, operate, and maintain millions of projects, sites, and assets. Sitetracker delivers operational excellence and creates full transparency across industries such as digital infrastructure, renewables, EV charging, utilities, and real estate by driving safe, efficient teams, ensuring healthy projects, and enabling organizations to manage scale, growth, and complexity. Trusted by hundreds of industry leaders, Sitetracker advances a more connected and sustainable future across the world. Manage What’s Critical, with Sitetracker.
Venture Capital Investor
Sep 2020
DTCP is an investment management firm focused on growth equity and digital infrastructure. Founded in 2015, the firm has raised more than $2.5 billion in funds from corporate and institutional investors and invested in over 70 companies. DTCP GROWTH invests in leading enterprise application and infrastructure software companies. DTCP INFRA invests in mobile access, fiber, and data center infrastructure. DTCP has a dedicated advisory team supporting portfolio companies and corporate sponsors in creating measurable synergies. The driving force behind the firm’s strategies is the belief that the convergence of networks, devices and the internet is creating more wealth, disrupting more businesses, and unleashing more innovation than any force in the history of technology. DTCP is headquartered in Hamburg with offices in San Francisco, Tel Aviv, Luxembourg and London. To learn more about DTCP, please visit www.dtcp.capital.
Strategic Investment
Mar 2019
Axel Springer is a transatlantic family-owned media company. By providing information across its diverse media brands (among others BILD, BUSINESS INSIDER, POLITICO, WELT) Axel Springer is shaping the future of independent journalism in the free world.
Experience · 12 entries
All (12)
Investments (6)
Founder (1)
Board (3)
2025
Board Observer
Apr 2025
Patchstack is the leader in open source software vulnerability intelligence, covering the entire lifecycle from detection to mitigation.
Board Observer
Mar 2025
The Open-Source GraphQL Federation Solution Full Lifecycle API Management for (Federated) GraphQL. Schema Registry, composition checks, analytics, metrics, tracing and routing. Deploy 100% on-prem or use our Managed Service. Apache 2.0 licensed, no vendor-lock.
2024
Principal
Jul 2024
Karma Ventures (karma.vc) is an early-stage venture capital firm, specialised in late seed and A round investments in Europe’s most promising tech startups. We back companies with strong ideas delivered with unique technology, customer traction and global ambition. karma.vc accompanies entrepreneurs in figuring out the path to growth in all aspects - commercial, strategic and technical.
2021
Investor & Board Observer
Sep 2021
We started FreeSWITCH because we wanted to solve our own challenging problems. We could not find a stable, scalable way to implement our 2004 call center as a service product. DIY solutions were a collection of random tools with constant stability and maintenance issues; premade solutions were massively expensive and still required physical data centers anyway. We built FreeSWITCH on our vision of solving those problems, made a community, and used it for insight. This took us well beyond the original goal. FreeSWITCH became so ubiquitous that the world made many vertical products with it that generate billions of dollars a year. At SignalWire, we empower businesses with easy-to-use and customizable cloud communications tools. Programmable Unified Communications supplants one-size-fits-all solutions, sparking innovation and growth. We have harnessed the complexity of CPaaS UCaaS CCaaS and Voice AI and made the entire paradigm available to developers. Come talk to us and we can help you achieve your goals.
Co-Founder
Mar 2021
HOTPOT NETWORK is a community made for Overseas & European-born Asian innovators. Just as our name suggests, we aim to build a warm, collaborative and fun environment to empower members and accelerate their innovation projects.
Show all 12 entries ↓
Investment activity
2019–2025 · 6 investments
20191202012021220252
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