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Appointment SettingData Sourcing Inbound Lead Qualification
Email ProspectingCold CallingLinkedIn ProspectingSales Gifting
It's not about our growth.
It’s about 
yours.
We built Leadium for one reason: to make outbound sales effortless for companies that need real pipeline, not empty promises.
10+
Years of Experience
For over a decade, we’ve refined every piece of the prospecting puzzle—strategy, data, messaging, technology, and execution—to create a fully managed, in-house caliber appointment setting team that gets results.
50K+
Meetings Booked
We’re not a software. We’re not a tool.
100%
US-Based SDR Team
We’re the team you hire to execute multi-channel outbound at the highest level...personalized email, cold calling, LinkedIn selling, gifting, and more.
With Leadium, you get more than meetings.
You get a proven system for sales growth, backed by a decade of expertise.
You get a proven system for sales growth, backed by a decade of expertise.
$6.7B+
Client Funding & Acquisitions
Let’s fill you sales pipeline,
together.
3M+
Prospects Engaged
Trusted by over
1,500
sales teams
A JOINT EFFORT
Outbound Sales Is a Science.
And It Starts with the Right Team.
2014
Breaking Into Outbound
We founded CIENCE, setting the stage for a new era in data-driven outbound sales.
2015
The Next Chapter Begins
After exiting CIENCE, we launched Leadium, a boutique sales development agency with a laser focus on high-performance prospecting and appointment setting.
2016
Scaling with Precision
Opened our Kyiv Hub, growing to 100+ data researchers and SDRs, refining our ability to execute outbound at scale.
2017
Industry Partnerships & U.S. Expansion
Partnered with Outreach.io to drive outbound for top-tier clients. Expanded our footprint with offices in Irvine, CA, and Alexandria, VA.
2018
Global Growth, Local Execution
Hit 250+ employees across five countries, managing world-class multi-channel sales campaigns.
2019
Big Investments, Bigger Ambitions
Invested $1M+ to open a 20,000 SQFT sales HQ in the Dominican Republic, reinforcing our commitment to world-class sales execution.
2020
Cold Calling at Scale
Launched a 100+ SDR hiring blitz, implementing intensive multi-channel cold calling training to sharpen our phone-first sales approach.
2021
Record-Setting Client Growth
Surpassed 175 active clients, proving our ability to drive consistent, high-quality pipeline at scale.
2022
A New Vision: 100% U.S.-Based SDRs
Sold off our international operations to double down on a boutique, fully U.S.-based team, delivering unmatched quality, experience, and execution.
2023
Building the Future of Sales Development
Opened our Las Vegas HQ and expanded our U.S.-based SDR team to serve the growing demand for elite outbound execution.
2024
The Most Advanced Outbound Programs Yet
Maintaining a 50-client portfolio, continuously optimizing with cutting-edge data and AI strategies to make SDRs even more effective.
Pipeline Builders
Revenue Focused
Pioneers
Lead Generators
ROI Driven
Data Powered
Experienced
Pipeline Builders
Revenue Focused
Pioneers
Lead Generators
ROI Driven
Data Powered
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Pipeline Builders
Revenue Focused
Pioneers
Lead Generators
ROI Driven
Data Powered
Lorem ipsum
Pipeline Builders
Revenue Focused
Pioneers
Lead Generators
ROI Driven
Data Powered
Lorem ipsum
Pipeline Builders
Revenue Focused
Pioneers
Lead Generators
ROI Driven
Data Powered
Lorem ipsum
Personalization
Enterprise Grade
Full-Service
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Multi-Channel
Guaranteed
Proven Success
Personalization
Enterprise Grade
Full-Service
Lorem ipsum
Multi-Channel
Guaranteed
Proven Success
Personalization
Enterprise Grade
Full-Service
Lorem ipsum
Multi-Channel
Guaranteed
Proven Success
Personalization
Enterprise Grade
Full-Service
Lorem ipsum
Multi-Channel
Guaranteed
Proven Success
Personalization
Enterprise Grade
Full-Service
Lorem ipsum
Multi-Channel
Guaranteed
Proven Success
Founders
Kevin Warner
Leadium Co-founder and Chief Executive Officer
Sergey Olexa
Leadium Co-founder and Chief Strategy Officer
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Advisors
Michael Hines
Amir Reiter
Mike MacDonald
Juan Ortiz
Amir Marmar
QUOTA CRUSHERS
Our Impact,
By the Numbers
A decade of building, scaling, and perfecting outbound sales. The experience and consistent deliverables are what sets Leadium apart in the industry.
Pipeline Generated
$250m+
We don’t just book meetings. We drive revenue-generating opportunities that fuel business growth.
Appointments Secured
150k+
Qualified Meetings Booked. Outbound sales is about results, and we deliver valuable talks for clients.
SDR Team Experience
500+
Trained and managed SDRs for 10 years, building top sales professionals and setting the outbound standard.
Clients Served
1500+
Companies across 45 industries trust Leadium as their outsourced sales powerhouse.
DRIVEN BY EXECUTION
Our principles shape how we build, sell, and succeed.
At Leadium, we don’t just talk results—we deliver. We tackle challenges, make smart moves, and focus on driving pipeline and revenue.
Results Over Activity
If it doesn’t move the needle,
we don’t waste time on it.
we don’t waste time on it.
Meetings booked. Pipeline built. Revenue generated. That’s what matters. We focus on outcomes, not vanity metrics. Every email, every call, every strategy is designed to convert conversations into opportunities.
No Shortcuts, No Excuses
Great sales teams aren’t built on hope. They’re built on process.
Outbound is tough. That’s why we do it right.
We don’t cut corners or take the easy route. We do the research, test the messaging, validate the data, and execute with precision.
Speed Wins Deals
Speed isn’t just efficiency, it’s the difference between winning and losing deals.
The faster you engage, the more you close.
Sales is a momentum game. We act fast, iterate quickly, and never let good leads sit untouched.
Own the Outcome
Because when you own the process, you own the results.
We take responsibility for success—and setbacks. Sales is unpredictable, but excuses don’t close deals. We test, adjust, and improve until we get it right.
Real results
Meet the Team
That Drives Your 
Pipeline
When you work with Leadium, you’re not just getting a service. You’re getting a team of highly trained, U.S.-based SDRs who act as an extension of your brand, booking meetings that turn into revenue.
Nate B.
Taylor Y.
Justin N.
Cris M.
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Michael W.
Collin M.
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