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.
Latest on 𝕏
Marc Klingen @marcklingen
Ok it’s back. Weird. The feature flagging doesn’t seem reliable https://t.co/Tci6Ufwoka
Aug 2, 2026
Marc Klingen @marcklingen
Oh no, did they remove ChatGPT work from the iOS app again? This was the best feature addition in ages (helped get complex things done while on the go)
Aug 2, 2026 · ♥ 4 · ⇄ 1
Marc Klingen @marcklingen
We need CRM Latency Bench What gets benchmarked gets improved
Jul 31, 2026 · ♥ 6
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 ↗
→
In turn, Marc can intro founders to Langfuse's investors below.
Langfuse's investors · 4
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
Education
- Y CombinatorYC W232023
- Technical University of MunichMaster of Science - MS, Management & Technology (Computer Science and Innovation)2018 — 2021
- Center for Digital Technology and Management (CDTM)Honours Degree, Technology Management2018 — 2021
- WHU – Otto Beisheim School of ManagementBachelor of Science - BS, International Business Administration and Management2014 — 2017
- Tongji UniversitySemester Abroad2019
- University of Michigan - Stephen M. Ross School of BusinessSemester Abroad2016
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.
Founder mafias
Y Combinator mafia8,668
Also came through, then founded or led a company.
Sam AltmanPresidentFounded LooptFred EhrsamYC Summer 2012Founded CoinbaseMatt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded PursuitDelian AsparouhovYC Summer 2014Founded Nightingale +1Justin KanYC Winter 2018Founded Rye +3
+ 8,661 more
Center for Digital Technology and Management (CDTM) mafia31
Also came through, then founded or led a company.
Judith DadaTechnology ManagementFounded LangdockAlex PoppHonors Degree in Technology ManagementFounded DemodeskIsabel PoppekHonours DegreeFounded AlpasFlorian FinckeHonors DegreeFounded Pina EarthMaximilian DeichmannHonours DegreeFounded LangfuseTill KernHonors DegreeFounded Stitch Technologies
+ 24 more
University of Michigan - Stephen M. Ross School of Business mafia20
Also came through, then founded or led a company.
Jason OkraFounded Wayline +1Tige SavageMBAFounded DraftKings (NASDAQ:DKNG)Paul McCreadieMaster of Business Administration (MBA)Founded Arbor MetrixKeenan KwokBachelor's and Master's degreeFounded Aera VCSol LeeBachelor of Business Administration (BBA)Founded NeptuneNeil ThanedarB.B.A.Founded Labdoor
+ 13 more
WHU – Otto Beisheim School of Management mafia11
Also came through, then founded or led a company.
Ferry HeilemannBachelor of Science (BS)Founded Aenu +1Mike MahlkowFounded Fastgen +1Michael BrehmDiplomaFounded AtheneumAnna-Lena KamenetzkyGerman diplomaFounded Touch CapitalMichael SchrezenmaierMaster of Science (MSc)Founded PipedriveKiren TannaExchange student - MBA programFounded Una Brands
+ 4 more
Tongji University mafia5
Also came through, then founded or led a company.
Same school
Also attended Y Combinator2,000
Leo LuInvestor at Foundation CapitalMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesVictor SantosVictor Scout at One Way VenturesSwapnil JainCEO, Observe.AI at EMERGENT VENTURESChase AdamPartner at Very Serious Ventures
+ 1,994 more
Also attended Technical University of Munich247
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
+ 241 more
Also attended WHU – Otto Beisheim School of Management139
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
+ 133 more
Also attended University of Michigan - Stephen M. Ross School of Business275
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
+ 269 more
Shared employers
Also worked at Alasco7
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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+ 1 more
Also worked at Afilio - Gesellschaft für Vorsorge mbH3
Also worked at DHL23
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
+ 17 more
Also worked at Cherry Ventures46
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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+ 40 more