Clariness
clariness.com
Actively hiring
Clinical Trial Sites & Recruitment
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How Clariness hires
Truth index
B 75/100
Median time to fill
49 days
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
Clariness scores B on the Alion truth index (A is best, E worst), measured over 3 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% have gone stale and 0% are the same role posted again. Its roles close in a median of 49 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Overview
Clariness is a clinical trial patient recruitment and enrollment company founded in Berlin in 2005 by Michael Stadler, Nils Drews and Jens Stelling, helping pharmaceutical sponsors, CROs and study sites find, screen, enroll and retain trial participants. In 2026 it merged with the US patient recruitment firm SubjectWell, and the combined business reports 42,000 randomized patients across more than 400 indications and over 60 countries, supported by its ClinLife patient platform and ClinSight and ClinStudio tools. It hires multilingual freelance medical customer service representatives who screen patients by phone, plus AI and DevOps engineers, sales, partnerships, legal and marketing staff.
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Shared investors
Healthy VenturesVia a fund
Martin VenturesVia a fund
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Owner
Same company
Same group
Likely
News
Clariness announces Jim Corrigan as CEO to lead next phase of growth
AUSTIN, TX, 31.03.2026 - Clariness, backed by WindRose Health Investors, today announced Jim Corrigan as Chief Executive Officer and unveiled an integrated executive leadership team following the merger with SubjectWell. Jim Corrigan, a three-time CEO who
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Clariness Announces Jim Corrigan as CEO to Lead Next Phase of Growth
/PRNewswire/ -- Clariness, backed by WindRose Health Investors, today announced Jim Corrigan as Chief Executive Officer and unveiled an integrated executive...
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Clariness And SubjectWell Merge To Form Full-Service Patient Recruitment Platform
Clarity and SubjectWell have announced a merger that will combine the two businesses into one of the largest global, full-service patient recruitment platforms, bringing together global scale, scientific rigor, and patient-first design to improve clinical
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Clariness and SubjectWell Merge to Form Global, Full-Service Patient Recruitment Platform
/PRNewswire/ -- Clariness and SubjectWell announced their merger to form one of the largest global, full-service patient recruitment platforms, combining...
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Clariness and SubjectWell merge to create global patient recruitment platform
JANUARY 27, 2026, BERLIN, GERMANY AND AUSTIN, TX, USA - Clariness and SubjectWell announced their merger to form one of the largest global, full-service patient recruitment platforms, combining global scale, scientific rigor, and patient-first design to t
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Boehringer Ingelheim RCV expands its recruitment via ClinLife to Bulgaria, Israel and Romania
Berlin, Germany 1 October 2025 - Boehringer Ingelheim RCV has expanded its partnership with Clariness, launching its patient recruitment on the marketplace model of ClinLife in Bulgaria, Israel and Romania. This expansion builds upon an existing strategic
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Clariness announces the unexpected passing of Co-Founder and CEO, Michael Stadler
It is with great sadness that Clariness announces that Michael Stadler, Co-Founder and CEO, unexpectedly passed away on 19 July 2025.Having co-founded Clariness in 2005, Michael played a key role in helping thousands of people access new treatments. His l
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Clariness appoints new co-CEO Stefan Mayer-Eggersmann
Hamburg, Germany 5 June 2025 - Clariness, a global leader in patient recruitment and clinical trial solutions, today announces the appointment of Stefan Mayer-Eggersmann as Co-CEO of Clariness. Stefan will join Co-Founder and CEO Michael Stadler, who will
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Clariness harnesses AI and 20 years of data to revolutionize patient recruitment funnels with Amazon QuickSight
Berlin, Germany 19 May 2025 - Clariness is harnessing the power of Amazon QuickSight, an AI-powered self-service analytics tool, to unlock deeper insights that enhance Clariness' patient recruitment funnels and campaigns. This AI allows Clariness' Medical
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Tech stack
Technologies named in job postings at Clariness over the last 12 months, by layer, with the share of postings for each.
Technologies in use
28
Postings analysed
5
Stack modernity
77/100AI adopter
Languages
Python
SQL
Frameworks & libraries
PyTorch
Scikit-learn
Databases
Delta Lake
Cloud & platforms
AWS
Amazon ECS
Braze
Databricks
AI & ML
LLM
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Full Clariness tech stack
28 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
70/100
Growing
Open positions
32
3 opened / 6 closed in 30 days
Median time-to-fill
40 days
faster than 33% of the market
ATS activity
Every ~4 hours
11/01/2026
Hiring Dynamics
+100%
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.
Customer Success
66% ▼
Sales
13%
Management
9% ▲
AI/ML
3% ▲
DevOps
3% ▼
Security
3% ▲
Activity Timeline
New location: United States
Oct 2026
New location: Canada
Oct 2026
Added SOC 2 to stack
Oct 2026
Added Red Teaming to stack
Oct 2026
Added OWASP Top 10 to stack
Oct 2026
Added AI Agents to stack
Oct 2026
New location: Cape Town
Sep 2026
Added Microsoft Office to stack
Sep 2026
Added Terraform to stack
Sep 2026
Added State Management to stack
Sep 2026
Added CI/CD to stack
Sep 2026
Added AWS to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
6
Hiring now
3
Countries
5
Busiest office
Berlin
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Headquarters
Builds here
Office with open vacancies
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Berlin
Germany
HQ
Remote within Germany
4 open roles 8 posted in 90 days 25% engineering 50% remote
hires for Security, Management, Sales
Hamburg
Germany
Regional office Registered seat
Hamburg
3 open roles 5 posted in 90 days 33% engineering 33% remote
hires for Security, Management, Sales
Cape Town
South Africa
Regional office
Cape Town
1 open roles 1 posted in 90 days
hires for Management
London
United Kingdom
Regional office
London
Belgrade
Serbia
Regional office
Serbia
Pudong
China
Regional office
Shanghai
Jobs
≈ $83k – $156k per year (Estimated) · Remote (Germany, United Kingdom, Serbia) · 5+ years exp · Berlin · Hamburg
Function Calling
AI Agents
LLM
RAG
Red Teaming
EU AI Act
DevOps
CI/CD
Cybersecurity
OWASP Top 10
SOC 2
GDPR
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≈ $66k – $112k per year (Estimated) · In office · 4+ years exp · Bachelor's Degree · Berlin · Hamburg
Apply