Leadium review: services, focus, and alternatives
Leadium (SDR outsourcing and appointment setting firm): Las Vegas outbound sales development firm offering a done-for-you SDR team and appointment setting.
What Leadium does
Leadium runs outbound sales development as a done-for-you SDR team. Its core services are appointment setting, data sourcing and inbound lead qualification, and it works through outbound email, cold calling, LinkedIn prospecting, gifting and event outreach. It also sells omni-channel sales strategy, top-of-funnel consulting, deliverability and technology implementations, and what it calls channel-optimized lead research. For inbound, its site claims speed-to-lead under five minutes. Campaigns are tracked in Apollo.io, run by a dedicated campaign manager with updates in a shared Slack channel, and sync both ways with HubSpot or Salesforce.
- Appointment setting
- Data sourcing
- Inbound lead qualification
- Outbound email
- Cold calling
- LinkedIn prospecting
- Sales gifting
Who Leadium fits
Leadium lists startups, SMBs, enterprise and public companies as clients, and names cybersecurity, SaaS, freight logistics, marketing services and digital transformation as focus industries, plus healthcare, e-learning, staffing and manufacturing. Its pages address founders, CROs and sales and marketing leaders. The contact form budget options start at $2,500, so it can suit smaller teams. HubSpot and Salesforce users get native sync, and other CRMs connect through make.com.
- Its about page names Kevin Warner (Co-founder and CEO) and Sergey Olexa (Co-founder and Chief Strategy Officer).
- Its about page timeline says the founders started CIENCE in 2014 and launched Leadium in 2015 after exiting it.
- Its about page says it opened its Las Vegas headquarters in 2023 and sold its international operations in 2022 to become fully US based.
- Its about page says it has served 1,500+ clients, though other figures on the site vary.
- Its homepage shows review badges from Clutch, G2, TrustRadius and UpCity.
How Leadium works
Its pricing page says research sources and validates decision-makers, and the client approves the list before anything goes out. Launch times are 7 to 10 days for appointment setting, one to three days for lead generation and one to two days for outbound consulting, with onboarding only on the 1st or 15th of the month. A dedicated campaign manager runs each account and posts updates in a shared Slack channel. Outreach runs across email, phone, LinkedIn, SMS and gifting, tracked in Apollo.io, with two-way HubSpot and Salesforce sync. The site describes the approach as strategy, data, technology and a dedicated SDR team, but does not break it into numbered steps.
Its about page names co-founders Kevin Warner (CEO) and Sergey Olexa (Chief Strategy Officer) and says Leadium launched in 2015. Headquarters is in Las Vegas, Nevada. The page cites 500+ SDRs trained over its history but gives no current headcount.
Published results and clients
These are Leadium's own claims from its website. We have not verified them independently.
- Its homepage says Energy Assurance tripled its monthly leads.
- Its homepage features a testimonial from Amada Senior Care's founder about filling the pipeline.
- Its homepage claims client funding and acquisitions of $6.7B and five client IPOs.
Engagement and pricing
Prices are not published. Its pricing page says all contracts are month to month, and its contact form offers budget bands from $2,500 to above $10,000 without saying what each includes. It guarantees service and activity deliverables but not appointment outcomes. Onboarding happens on the 1st or 15th of each month.
Leadium strengths and trade-offs
Strengths, based on what its site publishes:
- Month-to-month contracts
- Fast stated launch times, 7 to 10 days for appointment setting
- Multichannel, including LinkedIn and gifting
Trade-offs to weigh:
- No published prices
- Figures differ between pages
- Guarantees activity, not appointments
How Leadium compares
Outsourced SDR firms rent you trained reps, usually with cold calling at the center, and are measured on booked appointments. The real differences are whether reps are dedicated or shared, onshore or offshore, how long the minimum term is, and who owns the data and call recordings when the contract ends. Ask how a qualified appointment is defined before you compare prices.
Leadium offers fast launches and month-to-month contracts, which make a short test cheap to run. Stats differ across its pages (meetings, pipeline and funding figures), so ask for current client count and held-meeting rates for accounts like yours. Ask what each budget band buys and whether the guarantee covers activity only. Teams on HubSpot or Salesforce get native sync; teams that want to keep the sending stack should ask who owns the Apollo.io workspace and domains.
Leadium vs. OneGTM
| Leadium | OneGTM | |
|---|---|---|
| Type | SDR outsourcing and appointment setting firm | Founder-led GTM engineering practice |
| Focus | Las Vegas outbound sales development firm offering a done-for-you SDR team and appointment setting. | Outbound, signals, enrichment, RevOps, and AI systems built in the client's own accounts |
| Pricing | Prices are not published. | Scoped on a call |
OneGTM wrote this profile and competes in the same market, so weigh the comparison with that in mind. The facts about Leadium come from its own website.