The verdict in three sentences
An ATS/HR CRM SaaS (40 to 150 EUR/user/month) equips a firm with standard processes very well; custom development (35,000 to 100,000 EUR) is justified when talent pool, assignments and billing must live in one tool aligned with your method. The ROI reads on two indicators: time-to-hire and the number of assignments handled per consultant. Winning one extra assignment per consultant per month often repays the project in under a year.
Off-the-shelf ATS/CRM vs custom
Off-the-shelf ATSs are excellent at sourcing and tracking candidates but impose their logic. Custom links sourcing, assignment management and billing in your exact process.
| Criterion | ATS/CRM SaaS | Custom |
|---|---|---|
| Cost | 40-150 EUR/user/month | 35,000-100,000 EUR |
| Recurring cost | per-user subscription | 15-20% of build/yr |
| Timeline | 2-6 weeks | 3-6 months |
| Talent pool | standard, limited scoring | custom scoring and matching |
| Assignment management | often separate | integrated end to end |
| Billing | add-on or external | native, success fees |
| Jobboard/LinkedIn integrations | standard connectors | custom |
For a firm of fewer than 8-10 consultants with classic needs, the per-user subscription is often still the rational choice. Beyond that, the per-seat cost eventually makes custom attractive.
Modules, costs and integrations
The budget depends on matching depth and posting integrations. The pool + assignments + billing core carries most of the value.
| Module | Function | Indicative budget |
|---|---|---|
| Talent pool & matching | Candidate base, scoring, search | 10,000-24,000 EUR |
| Assignment management | Pipeline, stages, clients | 8,000-20,000 EUR |
| Jobboard multiposting | Multi-site publishing | 6,000-15,000 EUR |
| LinkedIn integration | Profile import, tracking | 5,000-14,000 EUR |
| Billing & fees | Quotes, invoices, success | 6,000-16,000 EUR |
| Client portal | Assignment tracking, shortlists | 6,000-14,000 EUR |
The qualified pool + matching pair has the best ROI: every hour saved searching for profiles converts directly into assignment-handling capacity.
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Mini case study
Fatou, managing partner of a 10-consultant recruitment firm, runs a busy desk. Each consultant handles on average 4 assignments/month with an average fee of 6,500 EUR per placement and a 60% success rate.
She invests 62,000 EUR in a custom tool (pool, matching, multiposting, billing). Target gain: +1 assignment handled per consultant per month thanks to automated matching, i.e. 10 extra assignments/month. At 60% success and a 6,500 EUR fee, that is ~39,000 EUR of additional revenue per month. Even conservatively keeping just a quarter of that potential, the project pays back in under 8 months, with reduced time-to-hire as a bonus.
FAQ
How many consultants justify custom? Often above 8-10 consultants, or as soon as success-fee billing and specific matching become differentiators. Below that, SaaS ATS remains cheaper.
Can we integrate LinkedIn and jobboards? Yes, via APIs and connectors. Multiposting and LinkedIn profile import avoid re-entry and speed up sourcing. Budget 5,000-15,000 EUR per major integration.
How do we measure ROI concretely? Two indicators: time-to-hire (days from opening to placement) and assignments per consultant. A 20% drop in time-to-hire mechanically frees billable capacity.
Is our candidate data GDPR-compliant? Yes if the tool handles consent, retention periods and the right to erasure. It is built in from design, with EU hosting and a processing log.
Can we start with one module? Yes. Many firms start with pool + matching (10,000-24,000 EUR), then add assignments and billing once value is proven.
Let's scope your project. Tell us your number of consultants, average fee and desired integrations (LinkedIn, jobboards) and we will quote scope and ROI. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.


