zerothird
Information Security · Quantum Science & Computing
Overview
zerothird is a quantum security company that protects critical infrastructure with entanglement-based cryptography that resists classical and quantum attacks. It is building the European quantum network and hires marketing and sales staff in Vienna and Germany. The company is headquartered in Vienna, Austria.
Funding and backers
Team
11-50
employees, estimated range
Hiring now
2
+1 posted in 30 days
Backers
1
AQAL Capital GmbH
Momentum
13/100
hiring for its size
Last sign of life
this month
a posting or a news item
Registers and programsofficial lists and records that name the company
| Legal entity | zerothird GmbH | its site |
Founders and leadersfrom filings, registers and the company's site
Felix TiefenbacherManaging Directorscompany's site
Rupert UrsinManaging Directorscompany's site
Backed byfrom the funds' portfolios and accelerator catalogs
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Salary insights
Compensation ranges based on this company's open jobs
Median
$45k
Typical range
$39k – $51k
Open positions
2
2
Jobs
Middle
50%
Senior
50%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Middle | 1 | $39k | $39k |
| Senior | 1 | $51k | $51k |
Highest paying role
Account Executive - Germany (all genders)
$51k
Normalized to USD per year
Growth
Hiring Momentum
28/100
Slowing
Open positions
2
0 opened / 0 closed in 30 days
ATS activity
Every ~5 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Marketing
50% ▲
Sales
50% ▼
People
Felix Tiefenbacher
Managing Directors
Rupert Ursin
Managing Directors
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
AQAL Capital GmbHVia a fund
33 portfolio companies: Mindray, Aconex Construction Project Management Software | Oracle, Specialtys and 30 more
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Owner
Same company
Same group
Likely
News
Aliro Technologies and zerothird Demonstrate Operational Quantum Networking with Cisco
BOSTON, July 14, 2026--Cisco is now testing Aliro Orchestrator as the quantum network management layer at its Cisco Photonics Center in Vimercate, Italy, to operate and manage a live entanglement-based quantum key distribution (eQKD) network built on zero
Read more
Report
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
2
Busiest office
Vienna
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Headquarters
Builds here
Office with open vacancies
Tap a pin for the office
Vienna
Austria
HQ
1 open roles 1 posted in 90 days 10-50 est. staff $39k Avg Salary
hires for Marketing
Munich
Germany
1 open roles 1 posted in 90 days 10-50 est. staff $51k Avg Salary
hires for Sales