Leadium Reviews: What Clients and Employees Say (2026)

Leadium, a US-based B2B outbound sales development agency, holds a 5.0/5 on Clutch across 76 reviews and 4.8/5 on G2 across 72 reviews, with a 4.6/5 Glassdoor score from 29 employees.

About Leadium

Leadium is a Las Vegas, NV-based B2B outbound sales development agency founded in 2016 (GoodFirms lists 2017), led by Founder and CEO Kevin Warner. The company builds and runs multi-channel outbound programs, including cold email, cold calling, and LinkedIn prospecting, and employs an estimated 50-249 people.

Leadium Review Overview

• Clutch: 5.0/5 across 76 reviews, with communicativeness and timeliness the most-repeated praise (verified September 2026).
• G2: 4.8/5 across 72 reviews, including a small minority of 1- and 2-star ratings alongside the majority (verified September 2026).
• Google: 5.0/5 across 6 reviews, a low-volume sample (verified September 2026).
• DesignRush: 4.6/5 across 3 native reviews, a non-statistical sample (verified September 2026).
• GoodFirms: 5.0/5 across 3 reviews, a non-statistical sample with no individual review text exposed (verified September 2026).
• Trustpilot: 3.7 TrustScore on a single review, too small to report as a score (verified September 2026).
• FeaturedCustomers: 20 vendor-curated testimonials and 11 case studies (verified September 2026).
• UpCity: access was blocked on two attempts; presence or absence of a profile could not be confirmed (verified September 2026).
• Glassdoor: 4.6/5 across 29 employee reviews, with 91% recommending the company (verified September 2026).
• Indeed: 5.0/5 across 3 reviews, all dated 2022, read during research in September 2026. A later attempt to re-read the profile met a human-verification challenge, so the figure is reported from the earlier read.

Leadium Client Reviews

Leadium’s largest samples, Clutch and G2, both show strong scores with real complaint detail behind them; several smaller platforms show near-perfect scores too thin to weigh on their own.

Clutch: 5.0/5 (76 reviews)

Clutch’s profile shows 76 reviews, all currently averaging 5.0/5, with reviews dated as recently as July 2026. Clutch’s own tagging surfaces “Communicative” (14 mentions), “Timely” (12), and “High Quality Work” (8) as the top praise categories.

What clients praise:

• Founder-level involvement in project delivery
• Proactive, adaptive strategy adjustments
• Positive lift to sales pipeline and ROI

Where clients push back:

• Clutch’s own Review Highlights flag onboarding and initial setup as slower than clients would like, describing room for a faster ramp-up

“They accepted that success in the public sector is often determined by patience rather than speed.”

• Client, Lead Generation for Consulting Firm, reviewed July 31, 2026 (Clutch )

G2: 4.8/5 (72 reviews)

G2’s 72 reviews break down as 67 five-star, 2 four-star, 0 three-star, 1 two-star, and 2 one-star, giving a more textured picture than Clutch’s uniform 5.0. G2’s auto-generated pros lead with “Understanding” and “Strategy Innovation”; its cons list “Poor Lead Quality” (3 mentions) and “Miscommunication” (2).

What clients praise:

• A dedicated outbound team that frees engineering and leadership from prospecting work
• Strategic adaptability in market development

Where clients push back:

• Lead-quality inconsistency, flagged by G2’s own auto-tagging on a minority of reviews
• A buyer-education gap for clients with technical products that need context before outbound messaging lands

“I like having a separate team working on the initial market development. It means our engineers and leadership team are not spending their time trying to turn every potential contact into a qualified conversation.”

• Nicolai I., CEO and Cofounder, Defense & Space industry (G2 )

Google: 5.0/5 (6 reviews)

Leadium’s Google Business Profile shows 5.0/5 across 6 reviews, just clearing a statistical floor. Visible reviews name founder-level engagement and relevant, well-researched lead lists.

“Selling into hospitals isn’t easy… long cycles, hard to reach the right people. Leadium got it. The lists were actually relevant and we had qualified meetings on the calendar within the first couple months.”

• Fred Newman, Google review read via DesignRush’s syndicated copy, June 16, 2026 (DesignRush )

DesignRush, GoodFirms, Trustpilot: DesignRush’s own testimonials sit at 4.6/5 on 3 native reviews (its page separately mirrors the Google figure above as “Reviews on Google 5.0 (6),” which is not a DesignRush-native score). GoodFirms shows 5.0/5 on 3 reviews with no individual review text available. Trustpilot carries a single review (3.7 TrustScore), which Trustpilot itself flags as unrepresentative given no recent history of asking for reviews.

FeaturedCustomers, UpCity: FeaturedCustomers lists 20 vendor-curated testimonials and 11 case studies for Leadium specifically; a separate 2,160-count “reference ratings” figure shown on the same page is a platform-wide pool, not Leadium’s own rating. UpCity’s site returned a block on two separate attempts as of September 2026, so a profile there could not be confirmed or ruled out.

Clutch and G2 tell a consistent story on strengths and a different one on weaknesses: both surface founder-level involvement and responsive delivery as top praise, but only G2’s larger, auto-tagged sample turns up lead-quality and miscommunication complaints that Clutch’s case-study-style reviews don’t independently corroborate.

Onboarding friction is the one complaint that shows up on both of the statistically meaningful platforms: Clutch’s Review Highlights flag setup speed, and a G2 reviewer separately describes needing more context before outbound messaging fit their technical product.

Several near-perfect scores rest on samples too small to argue from: Google (6), DesignRush (3), GoodFirms (3), and Trustpilot (1) all show 4.6/5 or higher, but none clears enough volume to treat as representative on its own.

Leadium Employer Reviews

Glassdoor’s 29 reviews put Leadium at 4.6/5 with 91% recommending the company; Indeed’s 3 reviews average 5.0/5 but date to 2022.

Glassdoor: 4.6/5 (29 reviews)

Glassdoor shows category scores of 4.4 for work/life balance, 4.6 for culture and values, 4.4 for career opportunities, and 4.6 for compensation and benefits, with a review as recent as March 2026.

What employees praise:

• Early ownership and responsibility for new hires
• Exposure to full revenue-cycle work rather than siloed tasks
• Structured coaching, including weekly call reviews and clear playbooks

Where employees push back:

• Processes that aren’t always fully built out, requiring reps to create workflows while executing
• Role ambiguity from wearing multiple hats
• Context-switching across multiple client accounts described as taxing on some days

“You get a ton of ownership early. I was managing outbound campaigns, pipeline tracking, contracts, and even billing within my first few months.”

• Sales Operations Manager, Current employee, Las Vegas NV, reviewed March 23, 2026 (Glassdoor )

“Processes aren’t always fully built out, so you’re often creating things from scratch while executing.”

• Sales Operations Manager, Current employee, Las Vegas NV, reviewed March 23, 2026 (Glassdoor )

Indeed, AmbitionBox, Comparably: Indeed shows 5.0/5 on 3 reviews, all dated April 2022, a recency gap against Glassdoor’s current activity. AmbitionBox returned a confirmed 404, showing no profile exists. Indeed itself returned a human-verification challenge on a later re-read attempt, so the figures above come from the earlier research read rather than a re-confirmation. Comparably returned a human-verification challenge page on every attempt, so a profile there could not be confirmed or ruled out.

The Glassdoor complaint pattern mirrors what clients describe on the delivery side: employees report building processes live per client, which plausibly explains why Clutch and G2 clients separately flag onboarding and ramp-up friction.

Employees consistently credit accessible, hands-on leadership as the upside of that same structure: the same founder-level involvement clients praise on Clutch and DesignRush shows up internally as early ownership and direct coaching, according to Glassdoor reviewers.

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Every rating on this page is published by the third-party review platform named beside it and was read on the "last checked" date shown. Scores change as new reviews land — check the source link for the current figure. PipeRocket Digital is the publisher of this page and a competitor of the agency reviewed. See our research methodology.

Vishnu Prasadh PPC Manager at PipeRocket

Vishnu is a paid marketing manager focused on building high-ROI acquisition engines for B2B SaaS companies. Playing a key role in building PipeRocket Digital, he designs and scales paid media programs across Google, LinkedIn, and other performance channels — turning ad spend into qualified pipeline. With a revenue-first approach to every campaign, Vishnu helps SaaS brands move beyond vanity metrics and drive growth that actually closes.

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