Short answer: SignalHire and ContactOut are both contact finders that recruiters use to get emails and phone numbers for candidates, mainly through a Chrome extension that works alongside LinkedIn. ContactOut is especially well known among recruiters for finding personal email addresses, while SignalHire is a broader contact finder used by both recruiters and sales teams. Neither is automatically better: the right choice depends on which one finds more working contact details for the candidates you hire. Test both on the same sample of real candidate profiles, including candidates in India if that's where you hire, before choosing.
How recruiters use these tools
Recruiters rarely need a full sales intelligence platform. They usually need to:
- Find a personal email or mobile number for a passive candidate
- Reach candidates who don't respond to LinkedIn InMails or connection requests
- Save time compared with guessing email formats or searching manually
- Move contact details into an ATS or a spreadsheet
Both SignalHire and ContactOut are built around this kind of workflow: open a candidate's profile, reveal their details with the extension, and reach out.
The two tools at a glance
ContactOut is a contact finder with a Chrome extension that shows emails and phone numbers while you view LinkedIn profiles. It's popular with recruiters and talent teams, and is particularly known for surfacing personal email addresses, which matter because many passive candidates don't want recruiters writing to their work inbox.
SignalHire is a contact finder with a browser extension and a web app for searching and revealing emails and phone numbers. It's used by recruiters and sales teams alike, and positions itself as a general tool for finding contact details for professionals.
Both use credit- or plan-based pricing, and both change their plans from time to time. Check current pricing on each vendor's own site.
Key differences that matter to recruiters
Personal vs work contact details
For recruiting, a personal email or mobile number is usually more useful than a work email. Approaching someone about a new job through their current employer's email can feel awkward and may be ignored. ContactOut's reputation in recruiting is largely built on personal email coverage. SignalHire also aims to return personal contact details. Test how often each gives you a personal email or mobile number for your candidates.
Coverage of your candidate pool
Coverage varies by country, industry and seniority. A tool that does well for software engineers in the US may be thinner for plant engineers in India or nurses in the Gulf. The only reliable test is your own candidate list.
Phone numbers
If you call or message candidates, check how often each tool returns a mobile number, and whether it reaches the right person. In markets like India, where many candidates respond faster to a call or WhatsApp message than to email, mobile coverage can matter more than email.
Workflow and integrations
Look at how each tool fits your day:
- Does the extension work smoothly with LinkedIn and LinkedIn Recruiter?
- Can you save candidates into lists or projects?
- Can you export to your ATS or a CSV easily?
- Is there bulk lookup if you source in volume?
Team use
If several recruiters share credits, check how team plans, credit sharing and admin controls work for each vendor.
Recruiting in India: extra things to check
If you hire in India, add a few India-specific checks to your trial:
- Mobile number coverage for Indian candidates, since calling and WhatsApp are common ways to reach people
- Coverage outside the biggest metros, such as tier-2 cities, if you hire there
- Coverage by function, for example tech, sales, manufacturing or healthcare roles
- Freshness, since candidates in fast-moving sectors change jobs and sometimes numbers
Consider including an India-focused contact finder in the trial too, so you have a fair benchmark for Indian candidates.
How to run a fair test
- Pick a sample of real candidate profiles that reflect the roles, seniority and locations you hire for.
- Run the same profiles through both tools, using free trials or starter plans where available.
- Record what you get: personal email, work email, mobile number, or nothing.
- Validate a sample. Send a few emails and watch for bounces; call or message a few candidates and confirm you reach the right person.
- Compare cost per usable contact, not headline plan price.
- Ask your recruiters which tool felt easier to use day to day.
Decision checklist
- Which tool found more personal emails for your candidates?
- Which found more working mobile numbers?
- Which covered your target locations and functions better?
- Which fits your ATS and sourcing workflow?
- Which pricing model works for your hiring volume?
- Are both vendors clear about data sourcing and opt-out handling?
Who each tool tends to suit
ContactOut may suit you if personal email coverage is your top priority, your team sources heavily from LinkedIn, and you want a tool widely used in recruiting.
SignalHire may suit you if you want a general-purpose contact finder that both your recruiting and sales colleagues can use, and your test shows good coverage for your candidates.
Consider an India-focused tool if most of your candidates are in India and you rely on calling or WhatsApp, and your test shows gaps for Indian profiles.
Using candidate contact details responsibly
Candidates are people, not leads. Keep outreach relevant to their experience, explain clearly who you are and why you're contacting them, and stop if they ask. Follow applicable privacy laws in the countries you recruit in, honour opt-out requests, and store candidate data securely in your ATS.
Where PeakAI fits
PeakAI is a contact data tool focused on India that finds verified emails and mobile numbers, including from LinkedIn profiles through its Chrome extension. For recruiters hiring in India, it can be a useful addition to your trial alongside SignalHire and ContactOut, particularly if you rely on calling or WhatsApp to reach candidates. Check thepeakai.com for current features and pricing, and test all three on the same sample of candidate profiles.
FAQ
Is ContactOut better than SignalHire for recruiters?
ContactOut is especially well known among recruiters for personal email coverage, but "better" depends on your candidates. Test both on the same sample of real profiles and compare the usable results.
Do SignalHire and ContactOut work with LinkedIn Recruiter?
Both are designed to work alongside LinkedIn through their browser extensions. Compatibility with specific LinkedIn products can change, so check each vendor's current documentation.
Do these tools have free plans?
Both have offered limited free access or trials, but plans and limits change. Check each vendor's current pricing page.
Which tool is best for finding Indian candidates' phone numbers?
Results depend on the roles and locations you hire for. Test SignalHire, ContactOut and an India-focused option such as PeakAI on a sample of your own Indian candidates.