Our mission is simple. We create borderless cyber solutions that push our clients into the future

Massive provides a unique approach to brand protection for high profile public individuals, executives, SMEs and enterprise.

At Massive, a brand’s relationship to cyber has been codified into 4 distinct pillars.


Massive empowers brands with a unique quartet of cyber services designed to enhance and defend brands.” – EVP Innovation, Massive Alliance


Brook Zimmatore

CEO / Co-Founder

As co-founder and CEO of Massive Alliance, Brook is known for enhancing and protecting the reputations of some of the world’s best known brands. Drawing on 17 years of experience, Brook personally advises C-suite executives, board members and key stakeholders on implementing effective solutions to deter and mitigate adverse events. From cyber security breaches to leadership changes, regulatory investigations and contentious litigation, Brook expertly guides clients to build proactive solutions to minimize impact and remove the aftermath of a crisis or disinformation to reestablish the most valuable asset: trust.

Brook grew Massive Alliance organically from a small London firm to a robust, 35+ employee reputation management and international PR company, now actively servicing clients in 19 countries.


Nadia Caterina Munno

Co-founder & President

Starting in Italy, Nadia has worked in media relations and PR since 2002 and has established relationships with top-tier outlets such as the BBC, Sky TV, Rai Italy, Cable networks in 6 countries and mainstream media newspapers spanning the USA to Latin America, Germany to the United Kingdom and the Middle East to Africa. With thousands of press and TV negotiations secured in 12 countries, Nadia understands the impact volume required to ensure a solid reputation management and brand control program.

Nadia has become an international figure in reputation management and is best known for her rolodex of media influencers.


Tom Popomaronis

EVP, Innovation & Executive Brand Director

Tom is a serial entrepreneur, product development expert, and content management strategist. He joined Massive to bring these strategies to our Executive Leadership Branding clients. Popomaronis actively contributes to CNBC Make It & Entrepreneur Magazine and has published over 1,000 articles with Forbes and Inc. Magazine. His work can also be found in TechCrunch, Business Insider, and USA Today.


Tamlyn Holmes

Chief Marketing Officer

Following her role in Barclays Bank, Tamlyn has overseen the digital marketing strategies for over 150 brands worldwide. Tamlyn ensures a well-developed marketing strategy, determining the how, where and to whom the business will find the greatest opportunities. Developing products and services, she achieves outstanding business goals and objectives.


Kendra Estey

VP of Executive Branding

Kendra has over 10 years of experience in professional and academic writing. Her versatility has allowed her to take on projects across industries, for writing and editing expertise that includes marketing and sales copy, ghostwriting, journalism, publishing, and overall content strategy. As Executive Leadership Branding Manager, Kendra is the direct link between our executive influencers and the editorial team, ensuring that the content produced not only meets Massive’s extremely high standards of quality but also gets placed on top-tier and niche publications according to every clients’ unique needs.


Sarah Hollingsworth

Director of Digital Strategy

With 9 years of fine-tuning skills in leadership, treasury, HR, staff training, consumer and client relations, sales, administration, and organization, Sarah has developed a keen eye for detail, precise organizational skills, deep research capabilities, and an end-to-end production know-how — which is exactly what her position as strategic analyst requires. At Massive Alliance, you’ll find Sarah dialing into the exact needs of both client and editor, acting as the essential bridge between the two, enabling those connections that are so vital to expanding the brand and influence of every Executive Leadership Branding client.


Veronika Bschorr

Financial Controller

Veronika is a seasoned executive and has served as Massive Financial Controller since 2015. Veronika leads the treasury and corporate finance functions where she is responsible for managing cash, debt, risk management and capital structure as well as financial planning and analysis, investor relations, credit and collections, merchant technologies and corporate development.

Qualities of Massive Alliance

Mitigate. Protect. Enhance.

Massive has designed a seamless process to remove negative media, reviews, defamatory complaints and slander from the internet. Imprints of disinformation can thwart any project, campaign or brand strategy.

Using us a proxy, Massive’s mitigation team will engage with known and unknown enemies to allow you to remotely and anonymously gain control over adversaries and predict reputation attacks and threats.

With media relations in 19 countries, your online image can be controlled with a push of a button. Leverage the voice of 12,900 authors, contributors and journalists to secure your image and message in the marketplace.

We believe every executive and leader is an independent brand which should be positioned as a ‘celebrity of their industry’. Enhance your brand, your political party or your personal leadership image.