Recruitment Process Outsourcing (RPO)

RPO allows businesses to hand over some, or all, permanent recruitment processes to a dedicated team of workforce specialists who take care of everything from identifying talent needs through to onboarding.

Your business could benefit from RPO if…

Permanent hiring is taking too long. When vacancies stay open for too long, productivity and growth can suffer. RPO gives you dedicated recruitment capability, structured processes and access to wider talent networks to improve hiring speed and keep critical roles moving.


Your recruitment has become reactive. When stretched internal teams rely heavily on a PSL to keep vacancies moving, there is little capacity for longer-term planning. RPO brings dedicated resource, clearer accountability and workforce insight, helping you reduce reactive agency dependence, build talent pipelines and plan permanent hiring around future business needs.

You are struggling to reach the right talent. An RPO partner brings specialist sourcing expertise, market insight and proactive talent pipelines, helping you reach people beyond active applicants and reduce reliance on reactive vacancy-by-vacancy recruitment.

Candidate experience is inconsistent. Different processes, slow communication and unclear ownership can damage employer reputation and lose good candidates. RPO creates a more joined-up hiring journey, with clearer accountability and consistent candidate engagement from application through to onboarding.

Your employer brand is not cutting through. Strong candidates need a compelling reason to choose you. An RPO partner can strengthen how your EVP is brought to life across attraction, sourcing and the candidate journey, creating a consistent employer message and recruitment experience that helps you reach and convert the right people.

How RPO models work

RPO is not one fixed model. How much of your recruitment you hand over is up to you, and we shape the engagement around that, from running your whole function to plugging into your existing team.

Full RPO solution

Hand us your entire recruitment function, and you get one accountable partner running it end to end, from workforce planning through to onboarding. We’ll work with you to develop a clear workforce strategy, and our RPO specialists handle the day-to-day delivery that makes it happen.

Hybrid RPO

Your team keeps ownership of what it does best, and we plug the gaps around it. Whether that's sourcing, screening, or candidate engagement, the mix flexes as your priorities shift, so support scales with actual need.

On-demand RPO

When hiring spikes for a seasonal push or a sudden project ramp-up, On-Demand RPO exists for exactly these moments. You bring us in for permanent recruitment support when volume rises, then step back without any ongoing commitment.
Why Rullion

Recruitment outsourcing that delivers

93%
NPS, well above the industry average 29%
15
days on average shaved off time to hire
45+
years in critical infrastructure
95%
client retention
Our sectors

The industries we support

From powering the UK's energy transition to delivering major transport and utilities projects, we connect exceptional people with organisations shaping the future. Explore our specialist sectors to discover how we support businesses and careers across the UK's most important industries.

Energy

Energy recruitment moves at the pace of the project, and our RPO teams sit inside that pace, running sourcing and screening for nuclear, renewables, and fusion hiring as volumes shift.

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Transport

Rail, rolling stock and aerospace have different workforce needs, but all depend on access to specialist skills. Our RPO solutions bring dedicated recruitment capacity, talent pipelines and consistent hiring processes across complex transport environments.

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Utilities

Water and gas organisations need to balance immediate recruitment with longer-term workforce planning. Our RPO solutions provide dedicated hiring capacity, stronger talent pipelines and a consistent recruitment process as workforce requirements change.

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How can we help?

Workforce solutions tailored to your business needs

Whether you’re hiring a single specialist or building an entire project team, our flexible workforce solutions are designed to help you attract, engage and retain the talent you need to deliver with confidence.

FAQs

Recruitment Process Outsourcing FAQs

Recruitment process outsourcing is when a company hands some, or all, of its recruitment to a third-party RPO provider. That provider becomes a dedicated recruitment team, handling everything from identifying talent gaps through to onboarding.

Outsourcing recruitment eases the cost and time pressure on your internal team and lets you scale hiring up or down with demand. You also gain access to specialist recruiters, better technology, and data-driven methods that improve the quality of hire and speed up the time to hire.

There are three main models. End-to-End RPO hands over the whole recruitment lifecycle; On-Demand RPO covers short-term spikes such as a project or product launch; and Hybrid RPO works alongside your team, taking ownership of selected areas like sourcing or screening.

RPO is a long-term partnership rather than a one-off transaction. An RPO provider works with your team to manage all or part of your hiring, focusing on quality, speed and cost efficiency, while traditional recruitment tends to be short-term and geared towards filling a specific role for a fee. Find out more about the differences between RPO and traditional recruitment.

No, RPO is not expensive when it is done right. You get clear pricing, fewer bad hires, faster time-to-hire and less strain on your team, and often can retain your HR technology - which adds up to serious value.

Not at all; that's a common misconception. While RPO suits organisations hiring over 1,000 people a year, it is just as effective for businesses with smaller or fluctuating hiring volumes, as well as for those that are scaling up. The model flexes to your recruitment needs, not the other way round.

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Talk to us about your workforce

Whether you need specialist recruitment, workforce management, talent development or project delivery support, our team can help you find the right solution for your programme.Whether you need specialist recruitment, workforce management, talent development or project delivery support, our team can help you find the right solution for your programme.

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