Key takeaways
- In-house gives you full control and the strongest brand alignment, but fixed costs and limited capacity make it hard to scale during hiring peaks.
- Agencies are fast for one-off or hard-to-fill roles, but per-hire fees of 15–30% of salary add up quickly once you hire regularly.
- RPO suits large, high-volume or multi-market hiring under a longer-term contract, but can feel removed from your team and culture.
- Embedded recruitment puts dedicated recruiters inside your team on a predictable monthly cost, combining in-house alignment with external flexibility.
- The right choice depends on your hiring volume, how predictable it is, your internal capacity and how much control you need.
Choosing how you recruit is no longer just a tactical decision. It shapes how fast you can grow, what each hire costs and how candidates experience your brand. Most HR and talent leaders are choosing between four models: building an in-house team, using recruitment agencies, outsourcing through RPO, or bringing in embedded recruiters.
This guide compares all four side by side, then looks at the head-to-head questions we hear most often, so you can match the model to your hiring plans.
Embedded vs RPO vs agency vs in-house: at a glance
| Factor | In-house | Agency | RPO | Embedded |
|---|---|---|---|---|
| How it works | Your own employees run all hiring | External firm fills individual roles | Provider runs part or all of your TA function under contract | External recruiters work inside your team, on your systems |
| Cost model | Fixed salaries, benefits and tools | 15–30% of first-year salary per hire | Management fee plus per-hire or per-project fees | Predictable monthly fee, scaled to demand |
| Control | High Full ownership of process | Low Agency runs its own process | Medium Depends on contract scope | High Your process, shared ownership |
| Cultural alignment | High Lives your values daily | Low Works across many clients | Medium Varies by provider | High Day-to-day integration |
| Scalability | Low Limited by headcount | Medium Role by role | High Built for volume | High Scale recruiters up or down |
| Speed to hire | Medium Slows at peaks | High Fast for urgent roles | High Fast once set up | High Live in 5 days |
| Commitment | Permanent headcount | Per role, none ongoing | Usually multi-year contract | Flexible, from a few months |
| Best for | Steady, predictable hiring with strong internal TA | Occasional, urgent or niche roles | Large-scale, high-volume or multi-market hiring | Growing or changing hiring needs without the internal bandwidth |
Scroll sideways on mobile to see all four models.
RPO vs in-house recruitment
This is the most common comparison, and the core question is whether to own recruitment or hand it to a specialist. An in-house team gives you full control and the deepest knowledge of your business. RPO gives you capacity, process and technology you'd struggle to build yourself.
Choose in-house when
- Hiring volume is steady and predictable year-round
- You already have experienced TA people and tools
- Employer brand and candidate experience must stay fully in your hands
Choose RPO when
- You need to hire at high volume or across several markets
- Your internal team can't keep up with growth
- You're ready to commit to a longer-term outsourcing contract
The trade-off is cost shape and flexibility. In-house costs are fixed whether you're hiring or not. RPO costs track activity, but contracts are typically longer and harder to exit. If neither feels right, an embedded model sits between them.
RPO vs recruitment agency
Agencies and RPO providers are both external, but they work very differently. An agency fills individual vacancies and is paid per placement. An RPO provider takes responsibility for your recruitment process, or part of it, over a set period.
Recruitment agency
- Paid per hire, usually 15–30% of salary
- Role-by-role, no long-term commitment
- Agency owns its candidate pool and process
- Best for occasional or urgent hires
RPO
- Management fee plus per-hire or project fees
- Contract covering a programme of hiring
- Provider runs your process under your brand
- Best for sustained, high-volume hiring
When you're comparing RPO vs a staffing agency vs in-house, the deciding factor is usually volume. A handful of hires a year rarely justifies RPO, while dozens of hires through agencies quickly becomes the most expensive option. For more detail, read embedded recruitment vs traditional agencies.
Embedded recruitment vs RPO
Embedded recruitment is sometimes called "embedded RPO" or a hybrid RPO model, and the two do overlap. Both bring in external recruiters to support your hiring. The difference is how closely they work with you.
- RPO is process outsourcing. The provider runs hiring on your behalf, often with its own team, systems and reporting.
- Embedded recruitment is team augmentation. Recruiters join your team, work in your ATS, attend your meetings and represent your brand as if they were employees.
That makes embedded recruitment easier to start, easier to scale back, and closer to your culture. RPO tends to suit larger organisations that want to hand over the whole function. We go deeper on this in RPO vs embedded TA.
What is a hybrid RPO model?
A hybrid RPO model mixes your in-house team with external support. For example, your internal recruiters keep leadership and specialist hiring while an outside partner handles volume or specific projects. Embedded recruitment is one of the most flexible ways to run a hybrid model, because the extra recruiters sit inside your team rather than alongside it.
Agency vs in-house recruitment
For most growing companies, this is where the decision starts. Agencies are efficient when you hire occasionally, because you only pay when a role is filled. Once hiring becomes regular, those fees add up and an internal team starts to make more financial sense. Our analysis puts the breakeven at around 15–20 hires a year.
Between those two points sits a large group of companies hiring steadily but not at a scale that justifies a full TA team. That's where embedded recruitment is designed to fit. See the full breakdown in recruitment agencies vs in-house hiring: cost comparison.
How do the costs compare?
| Model | What you pay for | How cost behaves as you hire more | Budget predictability |
|---|---|---|---|
| In-house | Recruiter salaries, benefits, ATS, job boards, tools | Fixed. Cost per hire falls as volume rises, but you pay even when hiring slows | High |
| Agency | A fee per placement, usually 15–30% of first-year salary | Rises in line with every hire and every salary increase | Low |
| RPO | Management fee plus per-hire or per-project charges | Tracks volume, within contract terms | Medium |
| Embedded | A monthly fee for dedicated recruiter capacity | Flat across multiple hires, scaled up or down as needed | High |
To put agency fees in context: ten hires a year at an average salary of €60,000 and a 20% fee comes to €120,000 in placement fees alone. Our clients typically see embedded recruitment cost 40–70% less than agency-led hiring.
What would embedded recruitment cost you?
Enter your hiring plans and see how embedded compares with your current agency or in-house spend.
Which recruitment model is right for you?
In-house
You hire steadily all year, have experienced TA people and want full ownership of the process.
Agency
You hire a few times a year, or need one urgent or very niche role filled quickly.
RPO
You're hiring at high volume or across markets and are ready for a long-term outsourcing contract.
Embedded
Your hiring is growing or changing, your team lacks bandwidth, and you want control without agency fees.
Not sure yet? Many companies pilot an embedded recruiter for 3–6 months to measure the impact before committing. You can also take our Hiring Health Check to see where your current process is losing time and money.
Embedded recruitment in practice: Glan Agua
Glan Agua, a water infrastructure company working across Ireland and the UK, faced skills shortages in hard-to-fill roles. Rent a Recruiter embedded recruiters within their team to build pipelines and run hiring end to end.
AIHR has cited the partnership in its guide to top recruiting strategies. Read the full case study.
Our recruitment services
Further reading
- What is embedded recruitment? A complete guide
- RPO vs embedded TA
- Embedded recruitment vs traditional agencies
- Recruitment agencies vs in-house hiring: cost comparison
- Cost savings in embedded recruitment explained
Frequently asked questions
What's the difference between RPO and in-house recruitment?
In-house recruitment is run by your own employees on fixed salaries. RPO hands part or all of the process to an external provider under contract. In-house gives more control; RPO gives more capacity for high-volume or multi-market hiring.
What's the difference between RPO and embedded recruitment?
RPO is process outsourcing, where a provider runs hiring on your behalf. Embedded recruiters join your team, work in your systems and represent your brand directly, which gives you more control and a closer cultural fit.
Is embedded recruitment just another name for RPO?
No. Some RPO arrangements include embedded recruiters, but embedded recruitment is defined by integration into your internal team and culture rather than outsourcing the process. It's also usually more flexible to start and scale.
Is a recruitment agency cheaper than embedded recruitment?
For one or two hires a year, an agency can be cheaper because you only pay on placement. Once you're hiring regularly, per-hire fees of 15–30% of salary add up, and a fixed monthly embedded model usually costs significantly less.
When does an in-house recruitment team make sense?
When hiring volume is high and steady enough to keep recruiters fully busy year-round, typically from around 15–20 hires a year, and you have the experience to build and manage the team.
Can embedded recruitment work for executive hires?
Yes. Embedded models adapt across seniority levels, from entry-level to executive, including specialist projects and high-stakes hires.
How long does embedded recruitment take to show ROI?
Most organisations see measurable results, such as reduced time-to-fill and better hiring outcomes, within the first 2–6 months.
What size of company benefits most from embedded recruitment?
Typically growing or mid-to-large businesses with roughly 50 to 1,000+ employees and ongoing hiring needs, especially in sectors like tech, engineering and scaleups.
Need flexible hiring with fast results?
Our embedded recruiters can be fully integrated within your team in just 5 days.
