From Framework to AI Platform: Our Evolution

During their time at Signavio and in subsequent consulting engagements, Steven Lewandowski and Stefan Krumnow identified a recurring pattern:

Go-to-market teams at small and mid-sized B2B SaaS companies consistently hit a wall because the concrete customer value of their solutions is rarely clearly understood or quantified.

The result: inefficient sales processes, lower win rates and preventable churn.

To bridge this value gap, they initially developed a proprietary Customer Value Framework and successfully advised businesses. High demand quickly made one thing clear: solving this challenge required a scalable, tech-driven solution.

addressable value was founded in 2025 to deliver exactly that, an AI-powered platform that brings customer value to light and empowers go-to-market teams to systematically measure and persuasively communicate it.

Photo credit: Cherie Birkner

Team

Porträt von Steven Lewandowski, eines Mannes mit blondem Haar, Bart und blauen Augen, trägt einen grauen Anzug und weißen T-Shirt, steht vor einer Steinmauer, lächelt leicht, Blick in die Kamera.

Steven Lewandowski
Co-Founder

Steven is an expert in Customer Success Management and scaling within the global B2B SaaS space, with prior roles at Signavio, HubSpot and SAP. At Signavio, he played a key role in building customer-centric, scalable processes. As a strategic consultant for SaaS companies, he now brings his expertise in operational excellence and measurable business outcomes to the founding team.

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Luke Zielke
Software Engineer

Luke is currently studying at the Hasso Plattner Institute and brings deep technical expertise to the engineering team at addressable value. As a working student, his primary focus is on implementing AI integrations and expanding the backend architecture. Thanks to his versatile skillset, Luke also supports the team with smaller frontend tasks, directly applying his academic knowledge to complex engineering challenges.

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Joshua Storost
Software Engineer

Joshua brings a strong foundation in software development, backed by a recently completed Bachelor’s degree in IT Systems Engineering. As a working student, he is an integral part of the engineering team, actively contributing to software development across both backend and frontend while applying his fresh academic insights directly to daily practice.

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Adrian Himmel
Software Engineer

Adrian is currently studying IT Systems Engineering at HPI. Driven by a passion for clean websites and apps, he now works on frontend development at addressable value.

Porträt von Stefan Krumnow, eines lachenden Mannes mit Brille vor hellem Hintergrund.

Stefan Krumnow
Co-Founder

Stefan brings over 16 years of leadership experience in the B2B SaaS sector, gained primarily at Signavio. There, he helped shape its evolution from a startup into an SAP business unit, first as one of the early engineers and later as a Go-to-Market executive where he built the global post-sales organization. Most recently, he led growing engineering organizations and guided the post-merger integration.

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Mariia Bondarenko
Founding Value Advisor

Mariia brings over 10 years of experience in Go-to-Market Operations, Customer Success and Business Development within global B2B SaaS companies. Her expertise lies in leading strategic GTM Operations initiatives, building scalable operational frameworks and driving collaboration, visibility and execution across teams. She enjoys bringing structure to complex challenges and sharing practical approaches that help organizations operate more effectively.

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Carsten Meyer
Product Engineer

Carsten is a Product Engineer with a strong background in AI-driven SaaS solutions and cloud infrastructure. Prior to joining addressable value, he developed and scaled data-intensive applications across Europe and the US, focusing on backend, frontend and AI integrations. At addressable value, he translates complex customer value logic into robust, user-friendly product features that integrate seamlessly into existing go-to-market processes.

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Santosh Dhirwani
Founding Engineer

Santosh brings over 12 years of hands-on engineering experience in building and scaling SaaS platforms. Previously, he served as Head of AI & Engineering at Mainteny, where he built production LLM systems with LangGraph, RAG and vector database integrations and as CTO at Kurabu, where he led a large, cross-functional engineering team. At addressable value, his focus is on leading the engineering team and product development.

Investors and Advisors

Porträt von Willi Tscheschner, eines lächelnden Mannes mit dunklem Haar, Bart und blauer Hemd vor einem grauen Hintergrund.

Willi Tscheschner
Investor & Advisor

Willi was a co-founder and Co-CTO (Frontend) at Signavio. He played a key role in shaping the user interface and product experience, driving the company’s overall user experience. Today, as an active angel investor, he supports SaaS founders with his deep expertise in building scalable, user-centric software products.

Nahaufnahme eines Mannes, Gerrit de Veer, in formeller Kleidung vor neutralem Hintergrund.

Gerrit de Veer
Investor & Advisor

As Head of Sales at Signavio, Gerrit built the initial go-to-market structures. He played a key role in driving global expansion and gained extensive experience in process management and business transformation. Today, he invests in high-tech and SaaS ventures, supporting founders with strategic and operational expertise.

Porträt eines Mannes, Gero Decker, mit kurzen braunen Haaren, Bart, trägt eine blaue Jacke und ein weißes Hemd, steht vor dunklem Hintergrund.

Dr. Gero Decker
Investor

Gero was a co-founder and CEO of Signavio. He led the company from its inception at the Hasso Plattner Institute to its successful acquisition by SAP in 2021. As an internationally recognized thought leader in Business Process Management, he currently leads global strategy for SAP Signavio as General Manager.

Ein lächelnder Mann, Nicolas Peters, mit braunem Haar, kurzer Bart und goatee, trägt ein hellbeiges Hemd, vor einer grauen Marmorwand.

Nicolas Peters
Investor

Nicolas was a co-founder and Co-CTO (Backend) at Signavio. He was responsible for the platform's architecture, stability and scalability, laying the technical foundation for its global growth. Today, as an angel investor, he applies his expertise to projects dedicated to promoting democracy and sustainability.

Ein Mann, Torben Schreiter, mit Brille, dunklem Haar und Bart, trägt ein schwarzes T-Shirt, vor neutralem Hintergrund, lächelnd.

Torben Schreiter
Investor

Torben was a co-founder and COO of Signavio, playing a key role in building a globally successful SaaS company. Today, as a Partner at Extantia Capital, he supports climate-tech innovations and helps founders transition from product-market fit to scalable go-to-market structures.

Eine Frau, Angeley Mullins, mit langen, lockigen braunen Haaren, trägt eine Brille und lächelt freundlich.

Angeley Mullins
Advisor

Angeley is the founder of Aetheris Ventures and a former executive at Amazon, Intuit and GoDaddy. She has guided companies from the pre-seed stage all the way to unicorn exits. Today, as an advisor, she helps build AI-powered growth strategies and scale go-to-market models into the triple-digit millions.

Ein Mann, Julius Göllner, mit dunkelblau-grünem Cap und weißem T-Shirt, lächelnd vor hellem Hintergrund.

Julius Göllner
Advisor

Julius is a serial entrepreneur, investor and co-founder of the ARRtist Platform. With over 16 companies founded and two exits, he is one of the defining figures in the European B2B SaaS scene. As an angel investor, he actively supports teams in achieving product-market fit and building scalable go-to-market structures.

Porträt eines Mannes, Jens Erasmus, mit blondem Haar in Business-Kleidung vor dunklem Hintergrund.

Dr. Jens Erasmus
Advisor

Jens brings extensive experience in international transformation and IT projects. He combines a deep understanding of complex organizations with a strong customer focus. As a decision-maker in purchasing and implementing software solutions, he brings a valuable user perspective, helping organizations realize the true value of technology.