# Jeff Weinstein, Partner at Grinda Marin Fund > Jeff Weinstein, Partner at Grinda Marin Fund. The rounds they were named in and the filings that name them, each with its source. Source: https://millionrounds.com/person/jeff-weinstein (Millionrounds; every figure on the page links to its filing or article) New York City, US · Partner # Jeff Weinstein Partner at [FJ Labs](https://millionrounds.com/fund/fj-labs) Latest rounds - **Linear** Series C · $82M Jun 2025 Backs *Collaboration Tools* *Developer Tools* *DevOps* *SAAS* Profile summary - **Rounds named:** 1 none observed - **Filings:** 1 with regulators - **Podcasts:** 3 episodes What this record rests on - ✓ **Named in rounds** No round names them yet - ✓ **On filings** 1 filing with a regulator - ✓ **Linked to a firm** At FJ Labs - **Claimed** Not claimed yet Titles come from filings their firm signed. [Correct or remove](https://millionrounds.com/corrections?person=jeff-weinstein)[Is this you? Claim it](https://millionrounds.com/claim?person=jeff-weinstein) ## The firm [**FJ Labs** VC firm · US **112** cheques in 12 months **848** all time **2** led deploying](https://millionrounds.com/fund/fj-labs) ## Rounds they were named in - **Rounds:** 1 - **Led:** 0 - **Disclosed:** $82M - **Active:** 2025 2025 - [Linear](https://millionrounds.com/company/linear) *Series C* **$82M** *US* Jun 2025 Joined · +10 investors By stage - Series C **1** What they backed Collaboration Tools **1** Developer Tools **1** DevOps **1** SAAS **1** AI **1** Software **1** Alongside - [01A *1*](https://millionrounds.com/fund/01a) - [Accel *1*](https://millionrounds.com/fund/accel) - [Designer Fund *1*](https://millionrounds.com/fund/designer-fund) - [Ilkka Paananen *1*](https://millionrounds.com/fund/ilkka-paananen) - [Indie.vc *1*](https://millionrounds.com/fund/indie-vc) - [Lauren & Vlad Loktev *1*](https://millionrounds.com/fund/lauren-and-vlad-loktev) - [Sequoia Capital *1*](https://millionrounds.com/fund/sequoia-capital) - [Seven Seven Six *1*](https://millionrounds.com/fund/seven-seven-six) Rounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names. ## Companies they are listed as backing Portfolio - [Advisable](https://millionrounds.com/startup/advisable-2) - [Agenteur](https://millionrounds.com/startup/agenteur) - [Aptuno](https://millionrounds.com/startup/aptuno) - [Archer](https://millionrounds.com/startup/archer-3) - [Blank Street](https://millionrounds.com/company/blank-street) - [Bottomless](https://millionrounds.com/company/bottomless) - [Brainbase](https://millionrounds.com/startup/brainbase) - [BrandTotal](https://millionrounds.com/company/brandtotal) - [Candidate Labs](https://millionrounds.com/startup/candidate-labs) - [Carpay](https://millionrounds.com/startup/carpay) - [Chingari](https://millionrounds.com/startup/chingari) - [Chiper](https://millionrounds.com/startup/chiper) - [Chowbus](https://millionrounds.com/company/chowbus) - [Conta Simples](https://millionrounds.com/startup/conta-simples) - [Creative Fabrica](https://millionrounds.com/startup/creative-fabrica) - [Curtsy](https://millionrounds.com/startup/curtsy) - [DRIC](https://millionrounds.com/startup/dric) - [Drizly](https://millionrounds.com/company/drizly) - [EasyKnock](https://millionrounds.com/startup/easyknock) - [Elenas](https://millionrounds.com/startup/elenas) - [Elevate Brands](https://millionrounds.com/startup/elevate-brands) - [Eneba](https://millionrounds.com/startup/eneba) - [Evernest](https://millionrounds.com/startup/evernest-3) - [Figment](https://millionrounds.com/startup/figment) - [Finom](https://millionrounds.com/company/finom) - [FoodByUs](https://millionrounds.com/startup/foodbyus) - [Fresha](https://millionrounds.com/company/fresha) - [Gamezop](https://millionrounds.com/startup/gamezop) - [Genially](https://millionrounds.com/startup/genially) - [Gorgias](https://millionrounds.com/company/gorgias) - [GuruCall](https://millionrounds.com/startup/gurucall) - [HomeLane](https://millionrounds.com/company/homelane) - [Jeff](https://millionrounds.com/startup/jeff) - [KUDO](https://millionrounds.com/startup/kudo) - [Kyte](https://millionrounds.com/startup/kyte-2) - [La Belle Vie](https://millionrounds.com/startup/la-belle-vie) 36 of 96 companies. ## Where they are named on record Filings - SEC Form D · Company raising **Wagon Analytics, Inc.** Executive Officer, Director since 2014 Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date. ## Also at FJ Labs - [**Jose Marin** Founding Partner *49 rounds*](https://millionrounds.com/person/jose-marin-4) - [**Agapitos Diakogiannis** Co-Founder & CEO *0 rounds*](https://millionrounds.com/person/agapitos-diakogiannis) - [**Andrea Xu** Co-Founder & CEO *0 rounds*](https://millionrounds.com/person/andrea-xu) - [**Anshul Ruparell** Venture Partner *0 rounds*](https://millionrounds.com/person/anshul-ruparell) - [**Arne H. Halleraker** Partner *0 rounds*](https://millionrounds.com/person/arne-h-halleraker) - [**Daniel Simon** Venture Partner *0 rounds*](https://millionrounds.com/person/daniel-simon) - [**Danny Browne** Investor *0 rounds*](https://millionrounds.com/person/danny-browne) - [**Erez Kalir** Venture Partner *0 rounds*](https://millionrounds.com/person/erez-kalir) ## Hear them before you pitch them - [TBPN](https://millionrounds.com/podcasts/tbpn) · 30 Apr 2026 · 1h 25m 🟣 The Collison Brothers LIVE on TBPN | John Collison, Patrick Collison, Henri Stern, Jeff Weinstein, & Zach Abrams With [Henri Stern](https://millionrounds.com/person/henri-stern)[Jeff Weinstein](https://millionrounds.com/person/jeff-weinstein) Mentions [John Collison](https://millionrounds.com/fund/john-collison)[Patrick Collison](https://millionrounds.com/fund/patrick-collison)[Zach Abrams](https://millionrounds.com/fund/zach-abrams) About this episode (00:00) - - John & Patrick Collison, the co-founders of Stripe, discuss the significant surge in new business creation, noting a 71% year-over-year increase in Q1, attributing this growth to AI's role in simplifying entrepreneurship. They highlight Stripe's initiatives like agentic commerce,… More on the show's page Listen on Apple PodcastsThe show's page - [TBPN](https://millionrounds.com/podcasts/tbpn) · 29 Sept 2025 · 3h 43m Claude Sonnet 4.5 Reactions, David Senra Live in The Ultradome | Dylan Field, Adam Foroughi, Mike Krieger, Jeff Weinstein, Adam Draper, James Hawkins, Erik Bernhardsson With [Adam Foroughi](https://millionrounds.com/person/adam-foroughi)[James Hawkins](https://millionrounds.com/person/james-hawkins)[Jeff Weinstein](https://millionrounds.com/person/jeff-weinstein) Mentions [Adam Draper](https://millionrounds.com/fund/adam-draper)[Dylan Field](https://millionrounds.com/fund/dylan-field)[Erik Bernhardsson](https://millionrounds.com/fund/erik-bernhardsson)[Mike Krieger](https://millionrounds.com/fund/mike-krieger) About this episode (01:27) - Meta AI App Community Reactions (19:45) - 𝕏 Timeline Reactions (35:22) - Stargate Project Reactions (40:33) - Claude Sonnet 4.5 Reactions (43:54) - Mike Krieger, co-founder and former CTO of Instagram, is now the Chief Product Officer at Anthropic, an AI company based in San… More on the show's page Listen on Apple PodcastsThe show's page - [TBPN](https://millionrounds.com/podcasts/tbpn) · 19 Jun 2025 · 3h 10m Meta Taps Nat Friedman & Daniel Gross for AI Push, Starship Rocket Explodes | Mike Knoop, David Cahn, Walden Yan, Eoghan McCabe, Jeff Weinstein, Garrett Lord, Tanay Tandon With [David Cahn](https://millionrounds.com/person/david-cahn)[Garrett Lord](https://millionrounds.com/person/garrett-lord)[Jeff Weinstein](https://millionrounds.com/person/jeff-weinstein)[Nat Friedman](https://millionrounds.com/person/nat-friedman) Mentions [Eoghan McCabe](https://millionrounds.com/fund/eoghan-mccabe)[Coatue](https://millionrounds.com/fund/coatue-management)[Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) About this episode (04:10) - Meta Eyes Nat Friedman & Daniel Gross for AI Push (37:47) - Lakers Sold to Mark Walter (43:39) - Surge Hits $1B+ in Capital Without Outside Revenue (56:20) - Mike Knoop, co-founder of Zapier and CEO of Ndea, discusses the evolving landscape of AI reasoning models, highlighting… More on the show's page Listen on Apple PodcastsThe show's page Episodes of [the shows we follow](https://millionrounds.com/podcasts), matched by name. Not them? [Tell us](https://millionrounds.com/corrections?person=jeff-weinstein). ## Find people like Jeff Filter every partner and angel by firm, kind, market and whether we watched them invest. Free with an account. Search people[How we know what we know](https://millionrounds.com/methodology)