The verdict in three sentences
An executive search firm with 12 consultants whose pool of 30,000 candidates is split between a CRM, a shared inbox and spreadsheets loses previously met profiles every week and makes pointless duplicate approaches. An off-the-shelf ATS costs 70 to 130 GBP per consultant per month, or 10,000 to 18,700 GBP a year for the team, while a custom ATS requires 40,000 to 70,000 GBP and a 4 month project. Custom pays off when your search method (market mapping, scoring, client reporting) is your competitive edge and UK GDPR compliance needs to be automated.
The real cost of a fragmented talent pool
In executive search, the talent pool is the firm's main asset. When it is scattered, three problems appear. Consultants cannot find the finance director they met 18 months ago because the interview notes sit in an inbox. Two consultants approach the same candidate for two different mandates, which damages the firm's reputation. And nobody knows which candidates should be deleted or re-contacted to respect retention periods.
| Symptom | Observed frequency (estimate) | Annual cost for 12 consultants |
|---|---|---|
| Manual searching for known profiles | 3 h per consultant per week | About 1,700 h |
| Duplicate approaches to the same candidate | 2 to 4 per month | Damaged reputation and response rates |
| CVs re-keyed from LinkedIn or email | 15 min per profile | 400 to 600 h |
| Client reports built by hand | 2 h per mandate | 200 h for 100 mandates |
| Data kept beyond 2 years | A large share of the pool | ICO enforcement risk |
Off-the-shelf or custom ATS: the 5-year comparison
Off-the-shelf ATS platforms deploy quickly and cover the basics: candidate records, pipeline per mandate, CV parsing, email integration. Their limits show on search-specific needs: target company mapping, org charts, in-house scoring, reports in the firm's format, fine-grained rights between partners.
| Criterion | Off-the-shelf ATS | Custom ATS |
|---|---|---|
| Entry cost | 0 to 2,500 GBP setup | 40,000 to 70,000 GBP |
| Recurring cost | 70 to 130 GBP per consultant per month | 4,500 to 8,000 GBP a year hosting and maintenance (estimate) |
| 5-year cumulative cost (12 consultants) | 50,400 to 93,600 GBP | 62,500 to 110,000 GBP |
| Timeline | 2 to 6 weeks | 4 months |
| Full-text search across CVs and notes | Vendor dependent | Dedicated engine, business filters |
| Market mapping and org charts | Rare | Built to fit |
| 2-year GDPR purge | Often manual | Automatic with consent renewal |
| Ownership of data and code | Data exportable, code not | Both |
Over 5 years the costs converge. The difference lies in productivity and in the firm's value: a proprietary tool structuring 30,000 qualified profiles weighs in a valuation at exit or fundraising.
The features that save consultants time
Full-text search is the most used feature: finding in 2 seconds every profile with "IFRS 17" and "insurance" in their CV or interview notes, met after 2024, based in Greater London. Next come automatic CV parsing, a pipeline per mandate shared with the client through a secure link, and generation of the shortlist report in the firm's format.
On data protection, a common practice under UK GDPR is to keep an unsuccessful candidate's data for 2 years after last contact, unless they agree to a longer period. A well-built ATS automatically sends a consent renewal request at 23 months, then anonymises or deletes profiles with no reply.
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Oliver, founder of a 12-consultant search firm in London (hypothetical persona), estimates that each consultant loses 3 hours a week searching for profiles and re-keying CVs. Over 45 weeks, that is 1,620 hours. If the tool recovers 70 %, or 1,134 hours, and a consultant hour is worth 80 GBP in potential billable time, the gain is about 90,700 GBP a year. With a custom ATS at 58,000 GBP and 6,500 GBP of annual maintenance, the investment is covered in under 9 months, provided the freed time goes into running more mandates.
FAQ
How much does an ATS cost for a recruitment firm in 2026?
An off-the-shelf ATS costs 70 to 130 GBP per consultant per month, or 10,000 to 18,700 GBP a year for 12 consultants. A custom ATS sits between 40,000 and 70,000 GBP, plus 4,500 to 8,000 GBP of annual maintenance.
How long does a custom ATS take to build?
Allow 4 months for a complete first version: talent pool, mandates, full-text search, reports and GDPR purge. Migrating the 30,000 existing profiles takes 2 to 3 weeks in parallel.
How should GDPR retention be handled?
A common benchmark is 2 years after last contact for an unsuccessful candidate. The ATS can request consent renewal automatically at 23 months, then anonymise profiles with no response.
Can profiles be imported from LinkedIn?
Import works through the CV sent by the candidate or a capture extension that respects the platform's terms of use. Mass scraping should be avoided, both legally and contractually.
Does a custom ATS stay scalable?
Yes, if you own the code and it is documented. Typical enhancements (a new report, a job board integration) usually cost 1,800 to 7,000 GBP each.
Let's scope your project. We scope your ATS around your search method and current talent pool, with an indicative budget and a 4 month timeline. 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.
