Leadspace Sidekick Chrome Extension
The contact data you need. The AI that turns it into pipeline.
Enterprise B2B intelligence on LinkedIn. Free to start.

Less expensive than
ZoomInfo & Apollo
Faster time-per-lead vs.
manual research
Fit scoring, outreach drafting & buying group intelligence built in
Technology categories in the data graph

What Sidekick Does
Three things no other tool does at this price.
Explore each one. Every capability is powered by 800M+ buyer identities — the same data graph used by Microsoft, Nvidia, and Salesforce.
The Foundation — Verified contact data, revealed instantly
Emails, direct dials, firmographics, tech stack. One click.
● Verified emails & direct phone numbers
Revealed on any LinkedIn profile
● Company firmographics & org hierarchy
Size, revenue, industry, parent and subsidiaries
● Technology stack
— 100+ categories, continuously updated
— not batch-refreshed monthly
The Difference — AI that works the whole sales workflow
Fit scoring, outreach drafting, buying committee mapping, job change detection.
● Fit Scoring
Instant score against your Target Audience with a plain-language explanation.
● Outreach Drafting
Cold emails, LinkedIn messages, call scripts — personalised to the contact's profile.
● Buying Committee
Map Economic Buyer, Champion, Technical Evaluator, Procurement, Exec Sponsor. Gaps flagged.
The Multiplier — Find more people just like your best ones
LookaLikes turns one perfect contact into a full pipeline.
● Point to any contact who fits your Target Audience perfectly
● Sidekick searches 800M+ identities for people with the same role profile, company type, and fit signals
Learn More About Sidekick

Sidekick
Article
The best LinkedIn prospecting tools for SDRs
You open a profile. The person looks like a fit. Now what? Most SDRs copy the name into a spreadsheet, run a search in whatever data tool their company bought, and hope the email comes back clean. That process costs you 20 minutes per prospect on a good day.
The tools on this list cut that time down. Some of them pull contact data. Others score accounts, map buying committees, or surface lookalike targets. Each one does something different, and the right stack depends on what slows you down most.
This guide walks through the strongest linkedin prospecting tools available to SDRs right now, what each one actually does, and where each one falls short.

Sidekick
Article
How to Find Direct Dials From a LinkedIn Profile Without Paying for a Sales Database
You found the right contact. The title matches. The company fits your ICP. Now you need a phone number that works. Every outbound rep hits this wall daily. The profile is right there, but the direct dial is locked behind a paywall or buried in a stale database. You need a faster way to find direct dials from linkedin profiles without switching tabs or spending hundreds a month on another tool.
Here is exactly how to do it, step by step, for free.

Sidekick
Article
How Accurate Is B2B Contact Data, Really? Email and Direct-Dial Benchmarks
You pull a list of 200 contacts from your database. You write personalized emails. You block two hours for cold calls. Then half your emails bounce and most of your dials hit dead ends. That afternoon is gone, and your pipeline looks the same as it did at 9 a.m.
This is the real cost of bad data. Not an abstract line item on a spreadsheet. Lost hours, missed quota, wasted effort. If you prospect for a living, b2b contact data accuracy is the single biggest factor separating productive days from empty ones.
So how accurate is the data you rely on? Here are the benchmarks that matter, what the numbers tell you, and what to do about it.

Sidekick
Article
How to Prospect on a Company Website (Not Just Professional Profiles)
Most reps prospect in one place. They open professional profiles, scroll through org charts, and send connection requests. It works. But it leaves a massive source of qualified prospects sitting untouched: the company website itself.
Every target account has a website. That website tells you who leads the team, what they sell, how they position their product, and where they operate. When you prospect on a company website, you get context that a profile page never gives you. The problem has always been turning that context into contact data fast enough to act on it.
That problem is solved now. Here is how to prospect directly from company websites and turn every site visit into a pipeline opportunity.
How We Compare
More intelligence. At a fraction of the cost.
See how Sidekick stacks up against ZoomInfo, Apollo, and Lusha across every capability that matters.
Full
Partial
None
Sidekick
ZoomInfo
Apollo
Lusha
PRICING
$0
Freemium — no CC
Paid from $49 / user per mo
No free tier
From ~$15K / year
Limited free tier
Paid from $49 / user per mo
No free tier
Paid from $49 / user per mo
CONTACT DATA
Verified emails
Direct / mobile phone
Firmographics & tech stack
Free tier
AI INTELLIGENCE
AI fit scoring
AI outreach drafting
Buying committee mapping
LookaLikes discovery
Job change detection
CRM & WORKFLOW
CRM & sales tool push
Salesforce, HubSpot, Outreach
Works on LinkedIn
DATA FOUNDATION
Identity graph size
800M+
270M+
Compiled DB
50M+
Continuously updated
Forrester recognized
Competitor data based on publicly available information as of 2026.

Pricing
Affordable outcomes. Not just affordable software.
Verified emails, direct dials, AI fit scoring, buying committee mapping, and AI outreach — all on LinkedIn. ZoomInfo, Apollo, and Lusha charge enterprise prices for what Sidekick delivers at 2.5–10× less.
FAQ
Common Questions
What browsers does Sidekick work on?
How do credits work?
What makes Sidekick different from Apollo or ZoomInfo?'
What is LookaLikes?
Does Sidekick integrate with my CRM?
How is the buying committee map built?


