Strategy, Development and Cybersecurity Solutions




Digital Transformation



Design Sprint

Hybrid Model™

Validate ideas with speed and cost efficiency

Technical Development

From prototype to full-scale build, we are experts at all stages of the development process

Security Assessments

End-to-end development and security services performed by world-renown experts

Marketing &

Brand Strategy

Your brand strategy should bring your competitive positioning to life 




BTblock is an emerging technology & cybersecurity consultancy firm founded by seasoned entrepreneurs who have a strong track record of creating value through the building and sale of successful businesses. BTblock enables ideation, validation, implementation, and bringing emerging innovations to market.


We believe in 10x ideas. Using our Design Sprint Hybrid Model™, we challenge assumptions, validate hypotheses and develop solutions that position our clients as category leaders. That’s why we start each project with a design sprint. This helps you challenge assumptions, identify pain points and get feedback early on before you commit resources and dollars to development. It’s about getting answers fast.

Exploring a new world in digital innovations

BTblock Team



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Tammy has spent 15 years in digital marketing, e-commerce, and business development including leadership roles in both agencies and technology companies. Tammy was the Vice President of Market Development & Agency Relations at G2 Crowd, a B2B marketing platform backed by $45 million of venture capital. She is formerly the Founder & CEO of MarketMeSuite, one of the first social media marketing management platforms. Tammy founded MarketMeSuite in 2009 and closed $2.6 million of investment capital while building a user base of 80,000 businesses. Her company was acquired in 2014 by Vivial to integrate with their local online marketing software platform. Tammy has consulted on projects in Artificial Intelligence, Big Data, Micro-Finance, Business Solutions, and Adtech. Tammy recently brought to market an adtech company built on the blockchain, and has given talks on Blockchain disruption at numerous conferences.



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Brian is the former Head of Growth at the Stellar Development Foundation where he led the global marketing and strategy activities for the Stellar protocol and their native token, lumens (XLM) - a token with a $2.1b market cap. He has worked in advertising and marketing for the last 12 years. Starting off his career at Saatchi & Saatchi in Los Angeles, he then moved to San Francisco where he spent four and a half years leading a sales development team at publicly traded publishing firm, Future US – ideating and producing integrated marketing campaigns for clients such as Google, UBISOFT, Hyundai, NVIDIA, Bethesda and dozens more in the video game and tech sector. Following his tenure at Future, he led the marketing departments at other high-growth startups around the globe focused on AR/AI, Video Games, Adtech, 3D-printing and Blockchain. Brian holds an MBA in Innovation and Entrepreneurship from ESADE in Barcelona, Spain.



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David Garrity has over 25 years’ experience in the financial services industry. He has held senior roles and board of director positions for both publicly held and private companies and has extensive experience in several disciplines including advisory, operations and research. David is founder of consulting firm, GVA Research, which advises clients such as The World Bank Group on technology issues and currently serves as Independent Director on the Board of BTCS Inc., a publicly-held U.S. company involved with Digital Assets and Blockchain. David previously served as CFO and Board Director at Interclick, Inc., a behavioral targeting internet advertising network as well as the Aspen Group, owner & operator of online university Aspen University. David appears regularly on CNBC, BNN, Bloomberg, The Financial Times, Asia Times, Yahoo Finance, and other media outlets.

Thomas Olofsson


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Thomas has served both as a CTO as well as a chief security officer. Thomas has an expertise in both software development of security products and services as well as consulting for large organizations on both technical security as well as risk management, and is the founder of the largest Swedish security conference, Thomas is a Senior Cybercrime and information security specialist with a strong development background. With years of software development, penetration testing and risk analysis, Thomas believes that information security and data protection should be a part of the design of any information system, not just an afterthought. Thomas's specialities include: online threats, incident handling and response, secure development life cycle, PCI compliance, internet banking, application security, information security management, and cryptography.

Dr. Alex Cahana

Blockchain and Healthcare Lead

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With over 25 years of experience in clinical medicine, Dr. Cahana consults multiple private and public companies, start-ups, healthcare organizations and the United Nations Center for Trade Facilitation and Electronic Business (UN/CEFACT). Dr. Cahana advises on blockchain technology, digiceutical integration and healthcare redesign. After serving as Professor and Chief of the Division of Pain Medicine at the University of Washington, Dr. Cahana is an Affiliate Professor in Science, Technology and Health Studies, is co-editor of the textbook Blockchain and Healthcare (a HIMSS publication), a top blogger on blockchain and healthcare on Medium and has published over one hundred articles.

Brian Jalazzo 

Head of Strategic Partnerships

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Brian Jalazo is an accomplished business professional with extensive sales, structuring and management experience in both domestic and international markets. Brian has held a variety of leadership positions at large money-center banks where he founded several transversal sales and origination businesses and established a record of developing practical policies and procedures aligning sales, risk, legal, technology and compliance activities. His diverse capital markets and derivatives expertise makes Brian a unique partner to executive management and board members of corporate clients and financial institutions requiring advisory services in transformational activities, M&A, financing and risk management. As a speaker at several conferences and industry events, Brian has presented on topics including FX Risk Management Post Financial Crisis, The Euro-Crisis and its Broader Impacts, Navigating Sea Change – Practical Treasury Considerations in Transforming Global Markets.


Mikael Björn

Head of Cybersecurity Research

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Specializing in large network systems architecture, security and development, Mikael has 30 years of experience in building secure systems for finance, telco and defense industries. Mikael has a background as principal engineer at Sun Microsystems and Unisys Corporation. He has been the major force in modernization of old development methodologies to new secure Agile CI/CD methods. He also has a long background in cloudification of old on premise large-scale enterprise systems. Today Mikael is heading the business unit responsible for secure development, audit and reviews in the Blockchain & DLT space including smart contracts. 






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