What technologies does Upstream.so use?

Upstream.so uses Cloudflare DNS, CloudFlare Hosting, Paddle, Instantly, DoubleClick. View their full technology stack — including all 15 detected tools — on StackWho.

Who is the Co-Founder of Upstream.so?

Mario Jankovic is the Co-Founder at Upstream.so. Get verified contact information on StackWho.

Where is Upstream.so located?

Upstream.so is based in Zagreb, City of Zagreb, Croatia.

Upstream.so

upstream.so

information technology & services

upstream.so

Zagreb, City of Zagreb, Croatia

1-10 employees

LinkedIn Profile

About Upstream.so

technology, information & media, live video optimization, social media, audience engagement, stream analytics, streaming analytics, stream builder, schedule streams, services, software as a service, pre-recorded videos, streaming software, video encoding, multi-channel audio, b2c, cloud-based streaming, brand customization, stream customization, stream design interface

Upstream.so's Tech Stack

Decision Makers at Upstream.so

1 contact

Mario Jankovic

Co-Founder

m***@upstream.so Sign up to view

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15 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

Stripe usage indicates active payment processing and likely a SaaS or marketplace model. Finance tools, billing automation, and fraud prevention solutions are highly relevant.

Upstream.so's Position in the StackWho Database

• Upstream.so is 1 of 194,140 information technology & services companies tracked in StackWho.
• 193,618 information technology & services companies in our database have verified decision-maker emails (100% of the cohort).
• 796 companies in City of Zagreb are in the StackWho database.
• 97,391 information technology & services companies are in the 1-10 employee range (same size as Upstream.so).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.

Frequently Asked Questions

What technology does Upstream.so use?

Upstream.so uses Cloudflare DNS, CloudFlare Hosting, Paddle, Instantly, DoubleClick, Nginx, and 9 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Upstream.so?

StackWho has verified email addresses for 1 decision maker at Upstream.so. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Upstream.so directly for sales, recruiting, or partnerships.

What industry is Upstream.so in?

Upstream.so operates in the information technology & services industry, headquartered in Zagreb, City of Zagreb, Croatia. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Upstream.so's contact data?

Yes. StackWho Pro members can export decision maker contact data for Upstream.so and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.