Steve Semelsberger – Startup Investor Profile

General Info

Steve Semelsberger is an experienced investor with a focus on consumer internet, enterprise software, mobile, content, and social media platforms. His previous investments include Experiment Engine, Testlio, Joust, Brewbot, Convey, BanterMe, Circle Media, and Capital Factory Fund 4.
Location: Austin, TX
Country: United States of America
Industries: Not available
Investment Regions: EU, NA
Investment Stages: pre-seed, seed
Website:

angel-individual
EU, NA

Want to start building warm intros with this investor?

Get Started for Free

🤖 AI Activity Report

Status: active

AI Reasoning: Found a LinkedIn post from Steve Semelsberger on May 2, 2025 indicating he stepped down from Testlio and plans to reactivate Alder Growth Partners after it being dormant for 5+ years. He mentions recent involvement and activity in 2025; the last known investment-related activity is within the 6-12 month range from the reference date, as he indicated plans and recent role changes tied to investment/advisory work and an intentionally small Series B with secondary transactions. Also his investments include Testlio and others (Experiment Engine, Joust, Brewbot, Convey, BanterMe, Circle Media, Capital Factory Fund 4). Based on these findings, classify as active.

Angel activity thresholds:
Low Activity – Only known angel investments more than 12 months ago.
Active – Known angel investments between the last 12 and 6 months.
Very Active – Known angel investments in the last 6 months.

Warm Intros from Portfolio Companies


Founder

Founder

Founder

Founder

Founder

Investment Regions Map

loading map…

Similar Investors

Region match

SODICAL

Based on Region
Stage match

Novartis Venture Funds

Based on Stage
Vertical match

Ken Howery

Based on Industry
Other similar investors:

Latest on X (Twitter)



Access all contact details of Steve Semelsberger

Gain instant access to partner names, verified emails, LinkedIn profiles, and more—all in one place. Dive into their portfolio founders and their LinkedIn information, so you can quickly start your outreach and look for warm intros.

Add custom tags to your investor cards. Label them by investment stage, industry focus, interest level, or any other criteria you want to stay organized.

Trusted by Founders like You

Find your matching investors using AI

Sign up to EasyVC