Prium Portage
OpenWork (Prium Portage) is a French salary portage (umbrella employment) company that lets independent consultants invoice clients while employed under a CDI, charging a flat 5% fee on pre-tax turnover and serving IT, training, interim management, and consulting freelancers in France.
- Company typePrivate
- Founded2009
- HeadquartersParis, France
- Headcount51–100
- GTM typeB2C
- OfferingServices
What Prium Portage does
Prium Portage, operating commercially as OpenWork (rebranded from STA Portage in 2024), is a French société de portage salarial founded in 2009 and headquartered in Puteaux, La Défense. The company provides umbrella employment services to independent professionals in France, allowing freelancers, consultants, and interim managers to invoice clients while being employed under a CDI contract. OpenWork bills the end-client, converts the revenue into payroll, and handles administrative obligations including accounting, VAT, social declarations, and provides social protections such as company-negotiated health insurance, retirement plans (PEE/PERCO), unemployment insurance between missions, and meal/gift vouchers. The platform serves four primary persona segments — IT professionals, trainers/coaches, interim managers, and general management consultants — and lists large enterprises (Orange, GRDF, RATP, Adeo, Samsung) as client companies that engage portaged consultants.
OpenWork's product surface centers on a proprietary web platform with a companion mobile application enabling digital onboarding in under 24 hours, electronic contract signing, photo-based expense declaration, payslip and document access, CRA (worked-day) submission, and a payroll simulator. Ancillary tools include an interactive salary simulator, an online resignation letter generator for traditional employees transitioning into portage, and OpenLive educational webinars. The technology stack is described as a web-based platform with mobile parity, differentiated primarily by ease-of-use and transparent pricing rather than advanced technical capabilities; no AI/ML features, proprietary models, or data flywheels are referenced.
The business model is a single revenue stream: a flat 5% transaction fee on the consultant's pre-tax turnover, billed pay-as-you-go with no entry, exit, or commitment fees. Go-to-market is sales-led/inside-sales, executed by dedicated business developers supported by phone, chat, and contact-form channels (open 8:30–19:00 weekdays), with full digital onboarding. Distribution is exclusively domestic (France). The company reports 30,000+ consultants cumulatively served over 16 years and "hundreds" of new consultants joining each month, with a workforce of 51–100 employees. No institutional funding, M&A activity, or leadership disclosures are present in the source material, and the company is independently held.
Prium Portage firmographics
Firmographics- Name
- Prium Portage
- Legal name
- OpenWork
- Website
- https://prium-portage.com
- Company type
- Private
- Founded year
- 2009
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- OpenWork (Prium Portage) is a French salary portage (umbrella employment) company that lets independent consultants invoice clients while employed under a CDI, charging a flat 5% fee on pre-tax turnover and serving IT, training, interim management, and consulting freelancers in France.
- Ownership category
- akta.pro rank
Prium Portage industry classification
Industry- Product category
- Salary Portage Services
- NAICS
- Professional Employer Organizations (561330), Payroll Services (541214)
- SIC
- Services-Employment Agencies (7361), Services-Management Services (8741)
- akta.pro primary industry
- Professional Employer Organization (PEO) / Co-Employment Services (BPACAHAB)
- akta.pro secondary industries
- Global Payroll & Multi-Country Payroll Coordination (EOR/PEO Interface) (BPAAAHAE), Workforce Management & Scheduling Outsourcing (Non-payroll) (BPACAKAJ)
Keywords
Where Prium Portage is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Prium Portage business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Salary Portage Fee (5% of HT turnover): OpenWork charges a flat 5% fee on the consulting company's pre-tax turnover. This covers all administrative management, payroll processing, social protections, and platform access. The fee structure is transparent with no hidden charges for entry, exit, or commitment.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Transaction based/ take rate | Pay-as-you-go | OpenWork Unique Offer - 5% flat fee on HT turnover |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels4 records
Prium Portage product offering
Product offeringCore offering
Prium Portage (operating as OpenWork) provides portage salarial services in France, allowing independent freelancers and consultants to be employed as salaried staff while billing clients directly. The company handles client invoicing, converts billings into net salary, and manages all administrative tasks including payroll, accounting, VAT, and declarations, for a flat 5% fee on pre-tax turnover with no hidden costs.
Product overview
OpenWork operates as a portage salarial platform offering a single unified service for freelancers and independent professionals in France. The core offering is the OpenWork Portage Salarial Platform combined with the proprietary Offre Unique (5% commission structure), which together handle the complete lifecycle of freelance employment including client invoicing, salary conversion, administrative management, and social protections. Additional tools include a Salary Simulator for income calculation, a mobile/web application for daily activity management (CRA declarations, expense reports, document access), a resignation letter generator for employment transition, and OpenLive webinars for educational content. The platform integrates electronic signature for remote contract signing and provides access to employee benefits including mutual insurance, retirement savings plans, and unemployment insurance.
Differentiator
Problem solved
Functional benefit
Products and services
- OpenWork Portage Salarial Platform
- Offre Unique OpenWork (5% flat fee service package)
Quantifiable outcome
- Become employed consultant in under 24 hours with digital onboarding
- +2 more outcomes
Companies that use Prium Portage
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles3 records
Prium Portage technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Prium Portage partnerships and signals
Strategic signalScale indicators3 records
Prium Portage competitors and assessment
Company assessmentDirect peers
- Freelance.com: One of France's largest portage salarial companies, offering similar salary portage services to independent consultants with a comparable fee-based model and enterprise client base.
- ITG (now part of Freelance.com group): Historic French portage salarial pioneer serving freelancers with payroll, administrative, and social protection services—directly comparable to OpenWork's offering.
- ABC Portage: French portage salarial operator offering payroll, invoicing, and administrative services to independent consultants across France with comparable pricing models.
- Portageo: French salary portage platform providing similar end-to-end employment administration, payroll, and social coverage services to freelance professionals.
- Umalis Group: French portage salarial company with a digital platform serving independent consultants, directly competing for the same freelancer customer segment.
- Altaix Portage: Established French portage salarial provider offering fee-based employment administration and social protection for independent consultants.
- Valloris Portage: French portage salarial firm providing payroll, invoicing, and HR administration services to independent professionals in France.
- Missioneo: French salary portage specialist offering administrative management and employment status services for freelance consultants.
- RH MyClient Portage: French portage salarial operator providing payroll, administrative, and social protection services to freelance consultants, directly comparable to OpenWork.
Broad incumbents
- Deel: Global Employer of Record and contractor management platform; broader incumbent offering similar EOR/contractor employment services internationally, an indicator of where portage could evolve.
Market position
Strengths4 records
Weaknesses4 records
Key risks5 records
Key highlights6 records
Customer concentration
Prium Portage social profiles
Digital presencePrium Portage financial estimates
Financial estimateRevenue estimate
Valuation estimate
Prium Portage leadership team
Management profileNumber of profiles
Prium Portage funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Prium Portage M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Prium Portage
What does Prium Portage do?
Prium Portage (operating as OpenWork) provides portage salarial services in France, allowing independent freelancers and consultants to be employed as salaried staff while billing clients directly. The company handles client invoicing, converts billings into net salary, and manages all administrative tasks including payroll, accounting, VAT, and declarations, for a flat 5% fee on pre-tax turnover with no hidden costs.
Is Prium Portage a public or private company?
Prium Portage is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Prium Portage founded?
Prium Portage was founded in 2009. It employs 51 to 100 people.
Where is Prium Portage based?
Prium Portage is headquartered in Paris, France, in the Europe region.
How does Prium Portage make money?
One revenue line is on record: salary Portage Fee (5% of HT turnover).
Who are Prium Portage's main competitors?
Direct peers on record are Freelance.com, ITG (now part of Freelance.com group), ABC Portage, Portageo, Umalis Group, Altaix Portage, Valloris Portage, Missioneo and RH MyClient Portage. Deel is listed as a broad incumbent.
Does Prium Portage have an API?
No public API is recorded for Prium Portage.
What industry is Prium Portage in?
Prium Portage's product category is Salary Portage Services. Its primary akta.pro industry code is BPACAHAB, Professional Employer Organization (PEO) / Co-Employment Services, with a secondary code of BPAAAHAE, Global Payroll & Multi-Country Payroll Coordination (EOR/PEO Interface). Its NAICS code is 561330 and its SIC code is 7361.