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A diverse team that brings together all the skills your startup needs.
Feel free to contact us individually for your specific needs
Meet our Founding Partners
Kimberly Lain
CFO Partner & Advisor
Kimberly Lain has provided professional services in Silicon Valley for more than two decades as a Corporate Controller, VP of Finance & Accounting, and CFO in various industries, such as SaaS, fintech, e-commerce, life sciences, manufacturing, and construction. She has helped start-ups scale, optimize, and integrate their back-office systems, as well as prepare for fundraising and exit. She has also implemented and migrated various software systems, such as NetSuite, QuickBooks, Xero, and others. She has worked for companies such as AppDynamics, Bolt, Envoy, People.ai, Lime, Xpansiv, Square, Cisco, and others. She is also a speaker and a leader who has received positive feedback from her clients and colleagues.
Tamas Holczer
HR Business Partner & Startup Mentor and Advisor
Tamas works as HR business partner and focuses on people’s work dynamics to build effective remote teams. He has 15+ years of recruitment experience and hands-on experience in software development and product management by taking napkin ideas to launch and beyond. Tamas is deeply passionate about helping founders surround themselves with the right team members that are going to push them to greatness.
Trevor Longino
Marketing Strategist & Thought Leader
Trevor Longino launched 15 startups from $0 to $3MM+ in ARR over the last decade, including Unito.io, Gog.com, Kontakt.io, and ThePrizeFactory.com. He has launched 50 startups, mentored about 200 more, taught thousands, and taught marketing, branding, growth, and revenue to more than 1,000 startups at accelerators all over Europe and North America.
With 20+ years of experience in marketing and leadership in startups, he brings a wealth of knowledge in marketing best practices, building and leading teams, and market positioning.
Csilla Váradi
Seasoned HR Consultant & Advisor
Csilla Váradi is a seasoned HR leader who has spent over 15 years transforming organizations across Europe, serving as HR Director at high-growth companies like eMAG and foodora. She has led culture transformations, post-merger integrations, and large-scale HR initiatives at the intersection of people strategy and business growth.
Csilla has worked with startups, scaleups, and global enterprises, helping companies build resilient, people-centric operations through strategic HR, talent development, and organizational design. She currently advises early-stage startups through Raise2Launch, where she helps founders scale their teams, align on culture, and prepare for international expansion.
Her work has been recognized with multiple honors, including HR Manager of the Year and recognition among the Top 20 Most Innovative HR Professionals.
Ghazaleh Vaziri
Venture Operations Manager
Ghazaleh Vaziri brings a multidisciplinary background in computer science, finance, and international business to venture growth. As Venture Operations Manager at SparkNorth Ventures, she helps ambitious European founders navigate the North American market, combining data-driven analysis with practical support across strategy, operations, and ecosystem development. She is particularly passionate about helping innovative ideas find new opportunities and grow into strong, sustainable businesses.
Peter Szarvas
Founder & Director, SparkNorth Ventures
Peter Szarvas is a technology founder with more than 20 years of experience building and scaling software and hardware companies. He founded Chameleon Smart Home, guided it from product development and venture funding through international expansion, and took the company public on the Budapest Stock Exchange. Through SparkNorth Ventures, Peter now helps European technology founders enter North America with practical support in go-to-market strategy, local partnerships, validation, and long-term growth.
JD Peters
Partner, Macy & Peters
JD Peters is an attorney, investor, and entrepreneur who helps founders navigate the legal decisions that shape high-growth companies. As a partner at Macy & Peters, he advises emerging businesses and technology companies on corporate transactions, governance, financing, technology licensing, and mergers and acquisitions. His background includes work at leading technology-law firm Wilson Sonsini, private practice, and building his own firm, giving him a practical, founder-minded perspective from formation through exit.
Johnny Helmberger
Founder & CEO, Madison Helm
A growth architect since 2002, Johnny has spent more than two decades building revenue functions and go-to-market strategy across startups and established companies. Early in his career, he co-led the digital health practice at MentorMate — tip of the spear in telemedicine — launching MobCon Digital Health, the first major conference dedicated to digital health. Hosted in Minneapolis, the heart of the region known as “Medical Alley,” drawing global health IT and clinical leaders years before “telemedicine” entered common use.
Johnny has since held senior growth and advisory roles with firms including TrustSphere, Traction Capital, Comcast Business, Oracle, Afzal Clinics, New Lion Labs, Storj Inc, ScaleUp Legal, and is founder of Madison Helm, a growth strategy practice.
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