Firefish vs Mercury
Two recruitment CRMs compared on pricing, features, and fit, so you can shortlist with confidence.
✓Pricing verified against vendor pagesData reviewed July 4, 2026How we research →
By Ramin Assemi, B2B SaaS marketer and former Head of Content at Close.comPublished Updated
Firefish
Recruitment CRM with built-in marketing for UK agencies
Best for: UK agencies that treat their website and brand as a candidate channel
✓Recruitment marketing (website CMS, campaigns, engagement tracking) built in
✓Outstanding UK-based support reputation
✕Rigid contract lengths reported by customers
✕Some job board integrations are paid extras
Mercury
Recruitment platform built on Microsoft Dynamics 365
Best for: Enterprise agencies embedded in the Microsoft ecosystem
✓Unparalleled Microsoft integration (Teams, Outlook, Office 365)
✓Power Platform flexibility for custom automation
✕Complex interface requiring extensive training
✕High total cost: Mercury + Microsoft licensing + implementation
Our verdict
Choose Firefish if…
UK agencies that treat their website and brand as a candidate channel. See the feature table below for where it differs from Mercury.
Choose Mercury if…
- ✓You're in rpo providers, a segment Firefish doesn't focus on
- ✓You need an open API for custom integrations
Feature-by-feature
| Feature | Firefish | Mercury |
|---|---|---|
| ATS + CRM core | ✓ | ✓ |
| Email/inbox sync | ✓ | ✓ |
| LinkedIn / Chrome extension | ~ | ~ |
| Multi-job-board posting | ✓ | ✓ |
| Built-in candidate sourcing | ~ | ~ |
| Workflow automation | ✓ | ✓ |
| AI matching & assistance | ~ | ~ |
| Reporting & analytics | ✓ | ✓ |
| Temp back-office (pay & bill) | ~ | ~ |
| Open API | ~ | ✓ |
| Mobile app | ✓ | ~ |
What would it cost your team?
| Est. monthly cost, entry tier | 5 seats | 20 seats | 50 seats |
|---|---|---|---|
| Firefish (reported) | £400/mo | £1,600/mo | £4,000/mo |
| Mercury (official) | Custom quote | Custom quote | Custom quote |
Estimated from each vendor's published entry-tier price as of July 4, 2026; real quotes vary with plan tier, add-on modules, and contract terms. See how we label pricing confidence.
Frequently asked questions
How do Firefish and Mercury pricing compare?
Firefish pricing starts at £80/user/mo (reported, reviewed July 4, 2026). Mercury uses custom quote-based pricing and does not publish list prices (official, reviewed July 4, 2026).
What does Firefish cost?
Firefish pricing starts at £80/user/mo (reported, reviewed July 4, 2026). Vendor site is quote-led; Capterra reports Basic £80, Professional £90, Enterprise £105 per user/mo (Capterra, Oct 2025). Contract terms not verified; some job board integrations cost extra.
What does Mercury cost?
Mercury uses custom quote-based pricing and does not publish list prices (official, reviewed July 4, 2026). Custom quote only, no public seat pricing. Built on Microsoft Dynamics, so budget for Microsoft licensing plus Mercury's implementation, data migration, and training services (vendor site, Jul 2026).
Which is rated higher, Firefish or Mercury?
Firefish is rated higher: 4.4/5 on G2 versus 4.2/5 for Mercury.
Who is Firefish best for, and who is Mercury best for?
Firefish: UK agencies that treat their website and brand as a candidate channel. Mercury: Enterprise agencies embedded in the Microsoft ecosystem.