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Tank Stream Ventures is a venture capital firm based in Australia, established as part of the BridgeLane Group, a diversified investment group formed in 2009. The firm specializes in investing in early-stage technology companies, focusing on sectors such as SaaS, e-commerce, social media, and online marketplaces. With a fund size of $20 million, Tank Stream Ventures has fully deployed its capital across a diverse portfolio of over 30 startups.
The firm operates with a global geographic focus, primarily targeting companies in Australia and the United States. Tank Stream Ventures emphasizes supporting startups that address fundamental human needs through technology. The firm has a team of 12 members, including co-founders Jonathan Lui, Rui Rodrigues, and Tim Fung, who is also known for founding Airtasker.
Notable milestones include a reported exit rate that is 28 percentage points higher than peer organizations, showcasing the firm’s effectiveness in identifying and nurturing successful startups. The firm continues to seek innovative companies that align with its investment thesis centered on enhancing human experiences.
Tank Stream Ventures invests primarily in early-stage technology companies, focusing on pre-seed, seed, seed-plus, and Series A stages. The firm has a flexible geographic approach, primarily targeting Australia and the United States, but remains open to opportunities globally. The sectors of interest include SaaS, e-commerce, social media, mobile applications, and online marketplaces.
The investment thesis of Tank Stream Ventures revolves around four core pillars that address fundamental human needs: the way humans LIVE, MOVE, TRANSACT, and WORK. The firm seeks to partner with strong teams that are innovating to solve core human problems through technology. Check sizes typically range from $200,000 to approximately $1 million, with equity stakes of 5% to 12% in the companies they invest in.
Tank Stream Ventures has built a diverse portfolio of over 30 startups, showcasing its commitment to supporting innovative companies across various sectors. Notable portfolio companies include:
This portfolio reflects the firm’s focus on technology-driven solutions that address significant challenges in everyday life. The firm’s investments span multiple sectors, including SaaS and e-commerce, aligning with its investment strategy aimed at enhancing human experiences.
Markus Kahlbetzer - CEO of BridgeLane Group and cornerstone investor in Tank Stream Ventures. He has extensive experience in investment management and has played a pivotal role in the firm’s strategic direction.
Jonathan Lui - Co-founder of Tank Stream Ventures, bringing expertise in technology investments and startup growth strategies.
Rui Rodrigues - Co-founder with a background in technology and venture capital, contributing to the firm’s investment decisions and portfolio management.
Tim Fung - Co-founder and founder of Airtasker, known for his insights into marketplace dynamics and operational scaling.
The team consists of 12 members, each contributing unique skills and experiences to support the firm’s mission of investing in early-stage technology companies.
To pitch to Tank Stream Ventures, founders should visit their website at tankstream.vc. The firm prefers pitches that include a clear overview of the business model, market opportunity, and team background. Founders should be prepared for a thorough evaluation process, and while response times may vary, it is advisable to follow up if no communication is received within a few weeks.
As of April 2026, Tank Stream Ventures has fully deployed its $20 million fund, investing in over 30 startups across various technology sectors. The firm has not announced any recent exits or new fund launches, indicating a focus on supporting its existing portfolio companies.
Tank Stream Ventures has been recognized for its higher exit rate compared to peer organizations, reflecting its effective investment strategies. The firm continues to seek innovative startups that align with its investment thesis centered on enhancing human experiences through technology.
What are the investment criteria for Tank Stream Ventures?
Tank Stream Ventures primarily invests in early-stage technology companies at pre-seed, seed, seed-plus, and Series A stages. The firm focuses on sectors such as SaaS, e-commerce, social media, and online marketplaces.
How can founders apply or pitch to Tank Stream Ventures?
Founders interested in pitching to Tank Stream Ventures can visit their website at tankstream.vc for more information on the application process.
What makes Tank Stream Ventures different from other venture capital firms?
Tank Stream Ventures emphasizes a strong partnership with founders, focusing on addressing core human needs through technology. The firm has a higher exit rate compared to its peers, indicating effective investment strategies.
What is the geographic scope of Tank Stream Ventures?
The firm primarily targets startups in Australia and the United States but remains flexible to invest in companies globally.
What is the typical check size for investments?
Tank Stream Ventures typically invests between $200,000 and $1 million in its portfolio companies, acquiring equity stakes of 5% to 12%.
What kind of post-investment involvement does Tank Stream Ventures have?
The firm adds value to its portfolio companies by leveraging its extensive network and expertise in technology and startup ecosystems, helping founders navigate challenges and scale their businesses effectively.
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