David Zeff ✌️

Head Of Sales

Whistle

Our global team of over 100 Whistlers has supported over 300 B2B companies, many of whom have gone on to raise a total of over $2Bn or have been acquired. In a given month we deliver over $15M in qualified pipeline for our clients using a combination of cutting-edge technology, evidence-based systems, and world-class talent. 

Whistle is built on the principles of integrity, transparency, and deploying best practices at all times. 
We work with fast-growing tech companies needing an outsourced SDR provider as well as enterprise companies looking to offshore vetted and skilled Marketing and Sales talent, with native English, German, French, Spanish, Portuguese, and Mandarin speakers that are ready to grow your company.

You can learn more about how we help businesses grow at www.whistle.ltd.

Chief Executive Officer

Sinorbis

Strategic Advisor tasked with building a world class enterprise sales team and sales development process to ensure that key business objectives are met. Working directly alongside the CEO, VP Marketing and VP Business Development to create a scalable sales process, and facilitate the training and onboarding of account executives and business development representatives.

Strategic Advisor, Board Member

Exceed.ai - Exited to Genesis

In my role as Head of Sales at Exceed, I built the entire end to end sales process and was responsible for all sales, processes, operations, creating the company’s first marketing, sales, product and support alignment and building strategic partnerships.  

My role also saw me working closely with investors, as we raised a $4M Series A & subsequently were acquired by Genesys.

Graduway - Exited to K1 Investment Management

Responsible for the creation and management of Graduway's North American business unit. My role included leading a team of account executives and sales development representatives to exceed company sales targets in key verticals. 

In my role, I was also responsible for creating the K-12 category, which became the highest performing category in the company and for creating and managing teams for both the K-12 and Enterprise divisions. I was also tasked with creating partnerships with key stakeholders & regularly lead thought leadership sessions around the world.

Experience in enterprise sales, creating targeted marketing campaigns, public speaking, brand ambassadorship, partnerships, conference exhibitions and strategic campaigns.

With thanks in part to the performance of my team, Graduway successfully raised $12.7M in Series B Funding from Susquehanna General Equity Partners and was purchased by Private Equity firm K1 Investment Capital in 2017.

Vice President of Sales, USA

Graduway

As employee #8 (3rd sales hire), I was involved in many aspects of growing the company from its modest beginnings above a coffee shop to becoming a leader in Alumni Engagement technology, empowering over 1,000 of the worlds best Higher Education and Non Profits.

I served as an account executive across North America and the UK and my personal contribution represented approximately 25% of total company sales. Responsibilities included B2B enterprise SAAS sales, contracts, RFPS, competitor analysis, strategic campaign development, client management and liaison, event management, exhibitions, public speaking and conferences.

Senior Account Executive

Vice President of a team of 15 Sales Development Representatives for B2B sales across global markets. 
Responsibilities included hiring, training, and development of Sales Development Representatives, team management, creation and accomplishment of targets in line with company objectives, campaign creation, and inbound marketing strategy, overseeing registration for multiple events with hundreds of attendees across the world.

VP Sales Development

OneFitStop - Exited to Private Investors

OneFitStop is a revolutionary SAAS platform for fitness professionals, enabling total client and business management. OneFitStop was awarded an Australian Government Research and Development Grant in 2013 and has raised $17M to date.

Responsibilities included founding the business, concept development, technology design and creation, product testing, marketing strategy and implementation, sales development, investor relations, industry partnership development, supplier management, sponsorship and exhibitions.

OneFitStop was sold in October 2015 to a consortium of private investors.

Co-Founder, CEO 

Fitness First Australia

Responsibilities included development of a new Fitness First training centre, providing high quality health and fitness services to hundreds of members and assisting in the management of the personal training team and member relations.

I also worked alongside Rebel Sport and Lorna Jane to promote fitness services to hundreds of customers.

Franchise Owner

Mergermarket

Responsibilities included analysing and predicting market trends, specialist reporting on forthcoming mergers and acquisitions in the Australian marketplace in the services, defence and manufacturing industries.

Financial Reporter

With over 10 years of selling technology to hundreds of SMB and Enterprise companies across multiple sectors, I have begun to wrap my head around the art of sales. 

I've been a part of 3 exits - one as a founder and two as a founding sales lead. I'm a people person, who loves to connect, lead, share experiences, coach, strategize and implement. I enjoy writing and sharing ideas and look to work with sales leaders and founders who are creating the impossible.

I have built and scaled full cycle business units and as an individual contributor, I have signed large enterprise deals with over 500 companies. 

I take that knowledge into Whistle, a revenue generation company supports over 150 customers through best practice sales and marketing. We offer the best people, processes and full transparency and are proud to work with leading B2B brands worldwide. To learn more, head to www.whistle.ltd

Businesses, much like rockets, either reach the moon or blow up. 
We're here to prevent the latter.

Whistle is built on the principles of integrity, transparency and deploying best practices at all times. Our goal is to help each of our clients to their next 100 B2B customers and we do so by attracting conversation ready prospects to our customers using a combination of cutting edge technology, evidence based systems and world class talent. You can learn more about how we help promising businesses grow at www.callwhistle.com.

Cybellum

Cybellum is a LG-company with a cybersecurity platform specializing in keeping physical devices like cars and medical devices cyber-secure. Companies like LG, Audi, Rolls Royce, Danaher, and Mobileye use our Product Security Platform and services every day to keep their products' software safe from cyber risks, and complied/certified with the international legislations or standards. Founded in 2016, Cybellum is a group of professionals working to raise the standard of product cybersecurity worldwide;

• Organized above expectations BDR-top meetings with global Tier 1 companies in EMEA and India.
• Qualified inbound leads through cold calls, emails, and LinkedIn connecting.
• Created outbound leads for targeted accounts using Sales Navigator.
• Collaborated closely with Marketing and Sales teams to drive business growth.
• Utilized CRM (Outreach and Sales Force) to track progress with client prospects.

Sales Development Representative EMEA and India (High Tech)

FBX Group

• Onboarded new European and global clients, closing deals in Dutch, French, English, and German.
• Contacted prospective clients via phone, email, and Google Meet, resulting in a high number of new contracts.
• Utilized CRM (Dt) to track progress with client prospects.
• Displaying professionalism and sensitivity regarding financially related matters.

Senior Account Executive EMEA/Africa/Canada (Fin Tech)

In Holon

• Executed subtitling projects, ensuring accurate and timely delivery of subtitles for various multimedia content, including Netflix.
• Conducted machine translation post-editing, refining, and improving machine-generated translations to achieve superior quality.
• Completed business translation projects, maintaining linguistic and cultural accuracy while meeting client requirements.
• Provided coaching services, offering guidance and support to individuals seeking professional development and growth.
• Offered financial and business consultancy, delivering strategic insights and recommendations to clients, including renowned companies such as PWC and Deloitte.
• Chairman of the Residential Committee in Antwerp (Belgium) since April 2016.

Business consultant and translator - Chairman of the Residential committee

in Antwerp

Sabbatical

Enhesa

100 employees, 15-million-euro global turnover, a SaaS company for international legal consultancy (EHS), global HQ in Brussels and entities in Washington and Tokyo.

• Demonstrated successful management of due diligence processes and actively participated in co-negotiating the sale of a start-up company, resulting in an exceptional value increase several times greater than the initial business value.
• Oversaw business controlling and effectively managed customer administration, ensuring accurate and efficient operations.
• Managed statutory reporting, audits, and corporate taxes for Belgium, the US, and Japan, ensuring regulatory compliance and maximizing financial outcomes.
• Managed a team of 5 people.

Chief Financial Officer

TOSHIBA Global Commerce Solutions, Inc

200.000 employees global, 500-million-euro turnover for Toshiba Electronics in EMEA, Japanese industrial and electronic group, European HQ’s in Brussels and Milano.

• Successfully managed the statutory reporting, audits, and corporate and local tax obligations for TGCS operations in Denmark, France, Switzerland, Sweden, Finland, Norway, and Singapore. This was accomplished while based at the Brussels EMEA headquarters, ensuring compliance with regulations, and optimizing financial performance.

Financial Consultant (for Gentis) at EMEA HQ of Toshiba Global Commerce Solutions (TGCS)

Media Markt - Saturn Benelux

5.000 employees for the Benelux, 2,1-billion-euro turnover Benelux, 22 shops Belux, Europe’s largest consumer electronics retailer, HQ in Rotterdam.

• Successfully spearheaded the integration of the Finance/Tax/Administration Departments from Belgium and Luxembourg into the Benelux Finance shared service center in Rotterdam, streamlining operations and maximizing efficiency.  (Managed two teams of together 15 people.)
• Played a pivotal role as a key member of the Sales Workgroup responsible for creating the Online store, contributing to its successful establishment and operation.
• Implemented automation and upgrades to the payroll process at the Belgian headquarters in Brussels, resulting in significant cost savings of 1.2 million euros.

Finance Manager Belux

Leen Bakker Belgium and Luxemburg

600 employees, 80-million-euro turnover, 62 shops for the Belux, a leading company of furniture and interior design products in the Benelux, Belux HQ in Antwerp.

• managed the Financial, Administration, Customer Service and Property Assets departments (11 people) 
• managed the statutory reporting, corporate and local taxes (+ audits), the financial controlling, and the planning & analysis (including the yearly budget and the forecasts) 
• Managed business control for Leen Bakker shops, overseeing profitability, risk management, internal controls, sales budgeting.
• Negotiated deals and framework agreements with suppliers, employing cost-effective management methods that resulted in a 0.5% annual increase in the business's EBIDTA.
• Led the customer services team, setting goals, analyzing client needs, facilitating daily work, and measuring performance

Financial Controller

Progressive financial roles

• 06/2007-12/2008 - Biscuits Delacre (Groot-Bijgaarden/Brussels) - Accounting Manager and Security Officer - (management of 2 accounting teams)

• 04/2005-06/2007 – BDO (Brussels, 74.000 staff and partners global, 8,1 billion USD turnover) - Senior Financial and Business Consultant - (supervising, coaching and training of a team of 6 junior accountants)

Account management : management of a portfolio consisting of 20 clients’ accounts by providing the standard financial service package and customer consulting. As an additional value I provided profit optimization advice and services. 

• 08/2004-03/2005 – FRS (Sint-Lambrechts-Woluwe/Brussels) - Supervisor Finance – (Belgium, UK, Luxembourg, France, Italy and Spain) – Project + SOX-implementation

• 04/2003-08/2004 - Honeywell Europe (Brussels) – Senior Accountant (US-GAAP, SOX)

• 03/1996-04/2003 - GFI (Belgische Distributiedienst, a TNT-company (Brussels) – Semi-Senior Accountant – Supervisor AP-department (a team of 7 people) – Car Fleet and Insurance Administrator

• 1995-1996 - BBL (now ING) (Antwerp) – bank employee

• 1994-1995 - (S.A. BUFFETEX) (Brussels) - AP accountant in Hotel ‘Président WTC’

11/1994 - 12/2008

At Cybellum, my role as a Sales Development Representative in the high-tech cybersecurity sphere propels me to connect with top-tier companies across EMEA and India. My multilingual capabilities enable me to effectively communicate and secure crucial meetings, fostering strong relationships and advancing our cybersecurity platform's reach. Contributing to the protection of vital physical devices, I stand at the forefront of safeguarding connected devices against escalating cyber risks.

Previously with FBX Group, I honed my skills in client onboarding and deal closures across diverse European and global markets. My professional journey reflects a steadfast commitment to excellence in sales and business development, backed by proficiency in CRM tools and a strategic approach to lead qualification.

Prior to my career transition from Corporate Finance to Sales, I began in Accounting and Taxes, progressing through various levels of Finance, including Analysis, Controlling, Management, and ultimately serving as a CFO.

I have acquired extensive knowledge and experience in international GAAPs and taxes, Transfer Pricing, SOX compliance, and working within global and European big and midsized corporates, BDO and a SaaS company.

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David Zeff ✌️

Eddy Janssen

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