Need backup?
The Onestaff reflex.
Onestaff Freelance by Proman Intérim has been the benchmark for 10 years, connecting companies in need of extra support with skilled professionals.
Onestaff. Quality.
Quite simply.
Businesses
Activity spikes. Rush periods. Absences… Inevitably, you need extra support.
Access the best profiles on the market in just 1 minute.
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Freelancers
Your assignments with total freedom. Work where and when you want.
You already love this new way of working. Download the app | ►
A controlled legal framework
The status of all Independent Professionals on the platform is validated by URSSAF.
Onestaff connects Professionals operating under different legal statuses (SASU, EURL, Micro-entrepreneur, Self-employed, etc.) by verifying their administrative profile via Mangopay.
This trusted European third-party platform uses anti-fraud, anti-money laundering and anti-terrorism financing tools to ensure the validity of KYC (Know Your Customer) documents, including the company registration certificate (Kbis), IBAN, and ID.
Onestaff is finalizing, for 2026, a new feature in close collaboration with ACOSS to allow the turnover of Independent Professionals to be declared electronically, on their behalf and in their name.
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Five-star trust
More than 15,000 companies trust our 10 years of expertise and the talent of our freelancers.
Major public and private groups, prestigious brands, and thousands of independent establishments all use the website and mobile app every day.
Onestaff has become a reflex. Your reflex.
A strong, united community
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+1,000,000 assignments posted since 2016, in Hospitality, Distribution, Healthcare, and Retail in France and internationally.
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+15,000 companies use Onestaff to find qualified support in 1 minute so they can stay focused on their business.
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+60,000 professionals work with complete freedom, either full-time or as a complement to their income.
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98% customer satisfaction in 2025, with clients highly satisfied with the selection of Professionals.
Onestaff Freelance
by Proman Interim
Need occasional support?
→ Freelancers are exactly what you need.
Need permanent support?
→ Discover the group’s digital Temporary Staffing offer.
The press is talking about Onestaff
Proman extends its HR and Interim kingdom by integrating freelancing
Madyness
Onestaff expands its field of action in the face of the pandemic
Les Echos
The startup Onestaff joins forces with the Proman Intérim group
BFM Business