Leadspace Sidekick Chrome Extension

The contact data you need. The AI that turns it into pipeline.

Enterprise B2B intelligence on LinkedIn. Free to start.

2.5-10

2.5-10

x

x

Less expensive than
ZoomInfo & Apollo

10-15

10-15

x

x

Faster time-per-lead vs.

manual research

AI

AI

Fit scoring, outreach drafting & buying group intelligence built in

100

100

+

+

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

● ICP fit score in plain language 

Know instantly if they're worth your time, and exactly why

● One-click CRM push

Salesforce, HubSpot, Microsoft Dynamics. Always free.

● ICP fit score in plain language 

Know instantly if they're worth your time, and exactly why

● One-click CRM push

Salesforce, HubSpot, Microsoft Dynamics. Always free.

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.

● Account Research

Company briefing, recent signals, contact summary — all on demand, in context.

● Job Change Detection

Contact changed roles? Sidekick surfaces their new details and a suggested outreach angle.

● Ask Anything

Free-form AI conversation grounded in Leadspace data. No forms. No filters.

● Account Research

Company briefing, recent signals, contact summary — all on demand, in context.

● Job Change Detection

Contact changed roles? Sidekick surfaces their new details and a suggested outreach angle.

● Ask Anything

Free-form AI conversation grounded in Leadspace data. No forms. No filters.

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

● Scored by role, function, seniority & company fit

● Verified contact data ready to reveal — add to list or push to CRM in one click

● Scored by role, function, seniority & company fit

● Verified contact data ready to reveal — add to list or push to CRM in one click

Learn More About Sidekick

Sidekick

Article

Best Chrome Extensions for Sales Prospecting in 2026

Your browser is where prospecting happens. You open profiles, scan accounts, and decide who to reach out to. The right sales prospecting chrome extension turns that workflow into a data advantage. The wrong one wastes clicks and gives you bad emails.


This guide breaks down the best sales extensions for B2B reps in 2026. Every tool on this list runs inside Chrome and fits into the profiles you already work in. Some are free. Some cost more than your monthly quota dinner. Here is how they stack up.

Compare the best sales intelligence tools for small teams. Find affordable options with verified data and fit scoring.

Sidekick

Article

Best Sales Intelligence Tools for Small and Lean Sales Teams

You have a small team. Every hour spent on bad data or wrong contacts costs you pipeline you won't get back. The right sales intelligence tool changes that equation fast. The wrong one drains budget and still leaves reps digging for direct dials.


This guide breaks down the best sales intelligence tools for small teams based on what matters when headcount is tight: data accuracy, speed to value, buying-group visibility, and total cost when you factor in seats, credits, and overages.

Find out if you need sales intelligence software or a right-sized free tool like Sidekick.

Sidekick

Article

Do You Actually Need an Enterprise Sales Intelligence Platform?

Your VP wants better pipeline coverage. Your CRO wants tighter targeting. Someone on the ops team starts evaluating six-figure sales intelligence platforms with demos, procurement cycles, and rollout timelines measured in quarters. Meanwhile, you still need verified contact data before your next call block.


The question of whether you need a full enterprise sales intelligence platform deserves a more honest answer than most vendors give. For many teams, the answer is no. For most individual reps, the answer is definitely no.

Find the cheapest b2b contact data with verified emails. Free tools that deliver enterprise-grade accuracy.

Sidekick

Article

What's the Cheapest Way to Get Verified B2B Contact Data?

Every rep needs accurate contact data. Verified emails, direct dials, and reliable firmographics form the foundation of outbound sales. The problem is that most tools charge thousands per year for data that decays within months. So what's the cheapest b2b contact data source that still delivers quality? The answer depends on what you need, how you prospect, and whether you're paying out of pocket or pitching a budget to your manager.

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?