Sourcing is distinct from recruiting in the traditional sense. Traditional recruiting is largely reactive: post a job, wait for applications, screen what arrives. Sourcing is proactive: identify candidates who match your requirements, reach out to engage their interest, and build a pipeline before or alongside the formal job posting.
Sourcing channels include: LinkedIn and professional networks (direct search and outreach), job board CV databases (searching databases of uploaded CVs from active job seekers), employee referral programmes (leveraging existing employee networks), sourcing tools that aggregate profiles from multiple platforms, GitHub and technical community platforms for technical roles, university and alumni networks for entry-level and intern hiring, and events and conferences for industry-specific talent.
Sourcing strategy is increasingly data-driven. Effective sourcing teams track which channels produce the highest-quality candidates at the lowest cost, which outreach approaches generate the best response rates, and which candidate sources correlate with the strongest quality-of-hire outcomes. This data informs where sourcing investment is concentrated.
In many organisations, sourcing is a specialised function distinct from recruiting. Sourcers (sometimes called talent researchers) focus exclusively on candidate identification and initial outreach, handing off warm candidates to recruiters who manage the evaluation and offer process. In smaller organisations, the recruiter typically performs both functions.
Key Points: Sourcing
- Proactive vs. reactive: Sourcing fills the pipeline proactively rather than waiting for inbound applications.
- Channel diversity: Effective sourcing draws from multiple channels — LinkedIn, CV databases, referrals, communities — to reach different talent segments.
- Top of funnel focus: Sourcing is concerned with candidate identification and initial engagement, not evaluation — it feeds the pipeline that recruiters then manage.
- Data-driven optimisation: Tracking source-to-hire rates and quality-of-hire by channel enables continuous reallocation of sourcing effort toward the most productive channels.
- Relationship investment: High-quality sourcing involves relationship-building over time, not just transactional outreach for immediate roles.
How Sourcing Works in Treegarden
Sourcing in Treegarden
Treegarden tracks the source of every candidate — whether they came from a job board, a direct application, LinkedIn, a referral, or a sourced outreach. Source attribution data flows through to hiring outcomes, enabling source-to-hire conversion analysis and quality-of-hire-by-source comparisons. Sourcers can log outreach activity, notes, and candidate status in the talent pool regardless of whether a formal application has been submitted, maintaining a searchable record of sourced candidates across all active searches.
Related HR Glossary Terms
Frequently Asked Questions About Sourcing
Sourcing and recruiting are two phases of the talent acquisition process that are sometimes combined in one role and sometimes split into separate specialisations. Sourcing focuses on candidate identification and initial engagement — finding people who match the role requirements, reaching out to gauge their interest, and warming them up sufficiently to enter the formal evaluation process. Recruiting focuses on evaluation and conversion — screening candidates, managing the interview process, facilitating decisions, extending and negotiating offers, and closing hires. In small organisations, one person typically does both. In high-volume or specialist recruiting operations, the roles are separated: sourcers build the pipeline, recruiters convert it.
Channel effectiveness varies by role type, industry, and seniority. Employee referrals consistently produce the highest quality-of-hire outcomes and often the lowest cost per hire — referred candidates have higher offer acceptance rates, ramp faster, and stay longer. LinkedIn is the dominant channel for professional and specialist roles, particularly with Recruiter licenses that enable outreach beyond first-degree connections. For technical roles, GitHub, Stack Overflow, and developer communities surface candidates through their public work. For high-volume roles, job board CV database searching is efficient. For executive roles, personal network sourcing and retained search firms are most common. The most effective sourcing programmes use multiple channels simultaneously, track which produce the best outcomes, and continuously adjust the mix.
Sourcing effectiveness is measured at multiple points in the conversion funnel. At the top of the funnel: the number of candidates identified per role, the response rate to initial outreach, and the conversion rate from outreach to conversation. In the middle of the funnel: the conversion rate from sourced candidate to qualified applicant, and the conversion rate from qualified applicant to interview stage. At the bottom of the funnel: the source-to-hire rate (what percentage of sourced candidates ultimately become hires) and quality-of-hire by source (do candidates sourced through one channel perform better than candidates sourced through another). These metrics together identify which sourcing channels are most productive and where in the conversion process candidates are being lost.
Modern sourcers use a combination of tools depending on their specialisation and the talent segments they target. LinkedIn Recruiter is the most widely used professional network for sourcing across most role types. Recruiter tools that aggregate profiles from multiple platforms — such as Gem, Beamery, or hireEZ — expand reach beyond LinkedIn. Google X-Ray searching (using site: operator to surface LinkedIn or GitHub profiles in Google search results) allows free sourcing without paid tool subscriptions. GitHub, Stack Overflow, and Kaggle are essential for technical sourcing. For contact data enrichment — finding email addresses and phone numbers for identified candidates — tools like Apollo, Hunter, and Clearbit are commonly used. ATS platforms with talent pool management provide the system of record for logging and tracking all sourcing activity across tools.