Africa's Revenue Growth Authority
Developing Strategies for
African SMEs:
Growing Sustainable
Revenue & Empowering
Leaders.
Developing Strategies for African SMEs — Growing Sustainable Revenue and Empowering Leaders across Nigeria, Africa, and 14 countries worldwide.
About Samuel Owoseni
Nigeria's Foremost
Revenue Growth Authority.
Qualifications & Fellowships
Meet Samuel Owoseni:
The Architect of Revenue Growth
Samuel Owoseni, FIMC, CMC, Dr.-FIGPCM is one of Nigeria's most decorated sales and revenue growth authorities. With over two decades of hands-on corporate experience spanning Sales, Telemarketing, Customer Experience Management, Human Resource Management, and Emotional Intelligence coaching, he has built a legacy that transcends industries and borders.
Beginning his career at entry level, Samuel rose over 15 years to National Sales Director and Board Member at an international hospitality company — leading a team of 200+ sales personnel across 32 Nigerian states. At age 29, he led Africa's largest revenue growth team for four consecutive years, winning 15 individual and team awards.
He holds an MBA with First Class Honours from Ahmadu Bello University, dual Doctoral Fellowships (Institute of Global Peace and Conflict Management; CIHRM), and holds certifications including CMC (USA), CIMS UK, FIMC, and Chartered HR Consultant. He is also a Certified Mediator and Negotiator.
As Founder of the International Academy of Sales and Telemarketing Management (IASTM), he has trained over 1,000 professionals, presented at conferences in 14 countries, and conducted impactful work across all 33 states in Nigeria. He is the host of the nationally recognized Sales Today Series and the author of practical revenue growth books published on Amazon.
Career Highlights
2023–Present
Founder & Lead Instructor
IASTM, Abuja
2018–2022
National Sales Director
An international hospitality company — 200+ personnel, 32 states
2016–2019
MBA — First Class Honours
Ahmadu Bello University, Zaria
2013–2016
Regional Manager, Middle Belt/Northern Nigeria
An international hospitality company
2022–2023
Board Director & Shareholder
An international hospitality company
20+
Years of Corporate Experience
14
Countries Spoken In
33
Nigerian States Reached
1,000+
Professionals Trained
50+
Conference Presentations
300%+
Sales Growth Achievement
Years Experience
States in Nigeria
Countries Worldwide
Professionals Trained
Video Episodes
Speaking & Keynotes
Keynotes That Move People —
and Revenue.
Dr. Owoseni delivers high-impact keynote addresses and masterclasses that transform how organizations think about sales, people, and growth.
Sales Mastery & Revenue Growth
Unlocking consistent, predictable revenue in competitive markets.
Emotional Intelligence in Business
How EQ drives superior sales performance and team culture.
Telemarketing & Customer Engagement
Building high-converting call centre and outbound teams.
Leadership & Capacity Building
Developing people who drive sustainable organizational growth.
Negotiation & Conflict Management
Certified strategies for closing deals and resolving disputes.
Business Development
Strategic growth frameworks for corporations of all sizes.
Est. Academy
IASTM
The Academy
Raising the Next Generation
of Growth Specialists
The International Academy of Sales and Telemarketing Management (IASTM) is Dr. Owoseni's flagship institution — Nigeria's leading training and consulting body for sales excellence, telemarketing mastery, and revenue growth. With offices in Abuja and Lagos, IASTM has trained thousands of professionals and partnered with Nigeria's most ambitious companies.
- Corporate Communication & Public Relation
- Human Capacity Development
- Sales & Sustainable Revenue Growth
- Talent Acquisition & Consulting
- Business Management & Consulting
- Service Check & Advocacy
- Performance Appraisal / Team Building
"Transforming how Nigeria sells, one professional at a time."
Flagship Program
The Revenue Growth
Masterclass.
Nigeria's most sought-after sales masterclass — a results-driven, high-energy program designed to reshape your team's approach to selling, converting, and growing revenue, predictably.
Social Proof
What Leaders Say About Dr. Owoseni
Under Mr. Samuel Owoseni's leadership, I experienced significant growth in sales. His ability to identify and nurture talent, along with his constant support and open-door policy, played a pivotal role.
Adrian Ike
Senior Sales Executive
In September 2023, we partnered with IASTM to enhance business growth. Their expertise led to high-quality appointments and their professionalism has consistently surpassed expectations.
Mathew Chinonye Joy
Business Manager
During our training, the team's communication was excellent with clear schedules and objectives. They're very data-driven and willing to adapt to ensure we're successful.
Rosemary Ayotunde
International NGO
Watch Live
See Samuel In Action.
Click any video to play it directly on this page. No redirects — just press play.
Photo Gallery
Moments That Define Excellence
30 photos — click any image to view full size
Media & Content
Sales Insights.
Videos. Articles.
Samuel Owoseni hosts the Sales Today Series — 50+ videos, articles, and insights on sales, telemarketing, and revenue growth.
The Sales Today Series
Over 50 episodes of high-value sales and revenue growth insights.
Revenue Growth Articles
Thought leadership on sales strategy, EQ, and business development.
International Academy of Sales & Telemarketing Management Masterclass
Behind the scenes of Nigeria's most impactful sales training events.
Awards & Recognition
Honored Nationally
& Internationally
Dr. Owoseni has received multiple national and international awards for his outstanding dedication to human capacity building and significant contributions to revenue growth in Nigeria's corporate sector.
National Award for Human Capacity Building
Outstanding contribution to developing Nigeria's workforce.
International Revenue Growth Excellence Award
Transformative impact on corporate revenue across Africa.
Certified Mediator & Negotiator
Global Institute of Peace and Conflict Management.
Chartered Human Resource Consultant
Nationally recognized credential in human capital development.
Published Works
Knowledge That
Drives Revenue.
Book Samuel Owoseni
Let's Work Together
Ready to transform your team's sales performance? Book Dr. Owoseni for your next keynote, training, or consulting engagement.
Samuel Owoseni
Founder & Lead Consultant, International Academy of Sales Telemarketing and Management
Phone
+234 802 931 8909
Offices
2nd Floor Suite 2005, Kingfem Plaza, Mabushi, Abuja, Nigeria
View our full engagement fee schedule and book directly, or submit the form above — our team will respond at [email protected].