Clickworker

Global crowdsourcing platform offering microtasks for AI training data, content creation, surveys, and app testing — acquired by LXT in 2024.

Microtasks Crowdsourcing & AI Data
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★ ★ ★ ★ ★ New (0 reviews)
Essen, Germany HQ
1,188 employees
2005 founded

What is Clickworker?

Clickworker is a global crowdsourcing platform headquartered in Essen, Germany with a US office in New York City. The platform connects businesses with a distributed workforce of freelancers ("Clickworkers") to complete online microtasks — small jobs taking from under a minute to about 20 minutes. Tasks include data labeling and categorization (images, video, text), text creation and editing, surveys and research, content moderation, search relevance evaluation, transcription and subtitling, app/game/website testing, and photo/audio/video data collection. Clickworker is heavily involved in AI training, providing human-generated and validated datasets for machine learning models across speech, image recognition, and search evaluation. The company was acquired by LXT in December 2024 to expand AI data services. A mobile app (Android/iOS) is available for capturing photos, video, and audio on the go. Contributors work completely independently on their own schedules.

Mission & values

Power AI training data and digital workflows for global enterprises through a 6M+ freelance crowd across Europe, the Americas, and Asia.

Qualifications

Becoming a Clickworker is beginner-friendly and generally does not require formal qualifications. Basic requirements include internet access, a computer or smartphone, and basic English reading skills. To access specific task categories, contributors must complete assessments and qualification tests that vary based on location, age, skill level, and language abilities. The UHRS (Universal Human Relevance System) assessment is required for search engine and AI algorithm tasks. No degree is required, making it accessible to students, stay-at-home parents, and anyone seeking supplemental income. Strong attention to detail and the ability to follow guidelines accurately are the most important skills across all task types.

Leadership

C

Christian Rozsenich

Co-Founder & Managing Director (CTO of parent LXT post-acquisition)

83% approval rating from employees per public review data; co-founded clickworker in 2005 in Essen, Germany. Now serves as CTO of LXT following the December 2024 acquisition.

A

Alexander Linden

Co-Founder

Hiring process

  1. 1

    Sign up at clickworker.com

    Create a free Clickworker account.

  2. 2

    Build your profile

    Complete language, location, and skill profile to qualify for relevant projects.

    About 1 day

  3. 3

    Take qualifying assessments

    Pass language and skills tests for the project pools you want to access.

    About 2 days

  4. 4

    Complete tasks

    Work on UHRS (Microsoft's relevance judging system), surveys, audio recording, transcription, photo collection, AI training tasks, and more.

  5. 5

    Get paid

    Earnings paid weekly via PayPal or SEPA once you exceed the minimum threshold.

    About 7 days

Funding

StageAcquired
Investors
LXT

Awards & recognition

  • $57.5M revenue (2024) with 2.8M customers

    GetLatka

  • Acquired by LXT to combine AI data crowdsourcing platforms · 2024

    LXT

Company information

Frequently asked questions

Where can I work?
Clickworker operates in over 30 countries across Europe, the Americas, and Asia; the platform supports 6M+ registered freelancers.
What types of work are available?
UHRS web-relevance tasks, surveys, audio recording, transcription, photo & video collection, content moderation, translation, and AI training annotation.
Who owns Clickworker now?
Clickworker was acquired by LXT in December 2024. Co-founder Christian Rozsenich became CTO of LXT, and the brand continues to operate.

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One email per week, 5 hand-picked roles.