About
Marc Klingen previously worked in product, sales, business intelligence, and full-stack engineering roles at Google, DHL, and early-stage startups. He holds a master's degree in Management and Computer Science from Technical University Munich.
Co-Founder & CEO at LangfuseYC W23
Intro paths
YC
Marc went through Y Combinator (Winter 2023) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Gustaf Alstromer — the partner who ran Langfuse's batch and knows the company first-hand. YC profile ↗
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In turn, Marc can intro founders to Langfuse's investors below.
Langfuse's investors · 8
General CatalystSan Francisco · $30M checksGICSingapore · since 2026Index VenturesSan Francisco · $540K – $10.8M checks · since 2026Khosla VenturesMenlo Park · $5K – $50M checks · since 2026La FamigliaBerlin · since 2023Lightspeed Venture PartnersMenlo Park · $1.7M – $87M checks · since 2026T. Rowe PriceBaltimore · since 2026Y CombinatorSan Francisco · $500K checks · since 2023
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Co-founders at Langfuse
MD
Maximilian DeichmannFounder
CR
Clemens RawertFounder
Experience
- Langfuse (YC W23, part of ClickHouse)CEO and Co-foundercurrent2022 — presentBerlin, Germany
- ClickHouseDirector – Agent Observability & Evaluationcurrent2026 — presentBerlin, Germany
- AlascoRevenue Operations2022Munich, Bavaria, Germany
- Afilio - Gesellschaft für Vorsorge mbHProduct Manager2018Berlin, Germany
- DHLProduct Manager – Customer Experience / Individual Delivery2018Bonn, North Rhine-Westphalia, Germany
- Cherry VenturesInvestment Analyst2017Berlin, Germany
- GoogleSales Strategy – Google Cloud2017Munich, Bavaria, Germany
- GoogleAccount Management – Google Marketing Solutions2016Dublin, County Dublin, Ireland
- NeztSleepFounders Associate2015Mexico City, Mexico
Skills & more
Customer SuccessProduct AnalyticsData ModelingSnowflakeWorkflow AutomationProduct ManagementBusiness Intelligence (BI)SalesData VisualizationDigital MarketingGoogle Apps ScriptAmazon Redshift
+12 more
Apache SparkAlteryxData EngineeringData ScienceTypeScriptFront-end DevelopmentMessaging AutomationReverse ETLSaas SalesPythonSQLMicrosoft OfficeLanguages Deutsch · Englisch
- Business Law: Business Taxation, Labor Law, Law of Capital Markets, and Restructuring of Companies — Bucerius Law School
- An Introduction to Programming the Internet of Things (IOT) — UC Irvine
- Data Engineering Nanodegree — Udacity
- Google Partners Academy: Adwords (Fundamentals, Search, Display, Shopping, Mobile, Video), Google Analytics IQ — Google
From Marc's professional profile.
Frequently asked questions
- Who is Marc Klingen?
- Marc Klingen previously worked in product, sales, business intelligence, and full-stack engineering roles at Google, DHL, and early-stage startups. He holds a master's degree in Management and Computer Science from Technical University Munich.
- Where does Marc Klingen work?
- Marc Klingen is Co-Founder & CEO of Langfuse.
- What companies did Marc Klingen found?
- Marc Klingen founded Langfuse.
- Where did Marc Klingen go to school?
- Marc Klingen studied at Y Combinator (YC W23); Technical University of Munich (Master of Science - MS, Management & Technology (Computer Science and Innovation)); Center for Digital Technology and Management (CDTM) (Honours Degree, Technology Management).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
Y Combinator mafia4,716
Also came through, then founded or led a company.
Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3
+ 4,709 more
Center for Digital Technology and Management (CDTM) mafia38
Also came through, then founded or led a company.
Anselm BauerHonours DegreeFounded Stylight +1Sebastian SchuonHonours DegreeFounded Stylight +1Mike WaxHonours DegreeFounded KONUX +1Christoph BaumeisterHonours Degree in Technology ManagementFounded Avi MedicalJudith DadaTechnology ManagementFounded LangdockLeo NeuerburgHonsFounded Buildingradar
+ 31 more
University of Michigan - Stephen M. Ross School of Business mafia24
Also came through, then founded or led a company.
Daniel FetnerBusinessFounded Instrument Capital +1Jason LettmannMBAFounded Alx Oncology +1Keenan KwokBachelor's and Master's degreeFounded Aera VC +1Jason OkraFounded Wayline +1Tige SavageMBAFounded DraftKings (NASDAQ:DKNG)Paul McCreadieMaster of Business Administration (MBA)Founded Arbor Metrix
+ 17 more
WHU – Otto Beisheim School of Management mafia18
Also came through, then founded or led a company.
Ferry HeilemannBachelor of Science (BS)Founded Aenu +1Michael SchrezenmaierMaster of Science (MSc)Founded Sumup +1Mike MahlkowFounded Fastgen +1Michael BrehmDiplomaFounded AtheneumFilip DamesDipl. Kfm. (MSc.)Founded ZalandoAnna-Lena KamenetzkyGerman diplomaFounded Touch Capital
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+ 11 more
Same school
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital
+ 1,994 more
Also attended Technical University of Munich282
Daan BoekhoudtInvestment Analyst at Cottonwood Technology FundJulian von EckartsbergManaging Director Europe at Burda Principal InvestmentsHannes Voucko-GlocknerInvestment Analyst at Burda Principal InvestmentsThomas MeierPartner, Head of Resilience in Energy & Resources Investments at Verve VenturesNiklas Born de AndrésInvestment & Product Intern at Kibo VenturesItziar EstevezPartner - Growth at Iris Capital
+ 276 more
Also attended WHU – Otto Beisheim School of Management143
John GregerCPO & Portfolio Partner at Burda Principal InvestmentsNatalie SchmitkeManaging Director Capital Networks at Burda Principal InvestmentsFriedrich von WulffenPrincipal at Burda Principal InvestmentsSheng Xin YuInvestment Analyst at Burda Principal InvestmentsBorisFounding Partner at Version One VenturesRouven DresselhausInvestor at Cavalry Ventures
+ 137 more
Also attended University of Michigan - Stephen M. Ross School of Business280
Alexandra FarmerPrincipal at Intel Capital, North AmericaTige SavageCo-founder at RevolutionWendy XiaoPartner at NorthzoneRob LawrenceSenior Finance Associate at GreycroftHyun KooPartner at March Capital PartnersRichard GuVice President at March Capital Partners
+ 274 more
Shared employers
Also worked at Alasco9
Bastian HasslingerInvestor at Index VenturesAnselm BauerCo-Founder at Alasco at PICUS CAPITALSebastian SchuonCo-Founder at Alasco at PICUS CAPITALRainer MärkleGeneral Partner at HV CapitalMatthias MüllerGeneral Partner at TEV VenturesChristopher SteinauPartner at Lightrock
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+ 3 more
Also worked at Afilio - Gesellschaft für Vorsorge mbH3
Also worked at DHL24
Brian HoytChief Operations Officer at Parkway Venture CapitalBianca AhorroStrategic Partnerships Sr. Associate at Kickstart VenturesAniko SzigetvariFounding Partner at Atlantica VenturesJean Du BoisdulierStartup Mentor / ESAC Representative France at Venionaire CapitalDikmen EdguPartner at Axon Partners GroupJan StanekManaging General Partner at Purple Ventures
+ 18 more
Also worked at Cherry Ventures45
Dominik EsenPrincipal at NorthzoneRicardo SchaeferFounder/General Partner at Zone 2 Ventures LlcSophia BendzInvestment Committee member at Bonnier CapitalMarie OuttierGeneral partner at OVNI CapitalRicardo Sequerra AmramPartner at Point NineChristian MeermannFounding Partner at Cherry Ventures
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+ 39 more