EngineersTechnical co-founders
People who can own the first shipped product: backend, infra, AI, mobile, web, and the tradeoffs that come with launch.
Meet · Build · Launch together
Cofounder NYC is for founders, engineers, designers, and operators who want to form real companies together. No hiring funnel. No spectators. People who can contribute from day one.
NYC builders. Five boroughs. Real contribution. Real companies.
Find
co-founders & early team
Build
products people love
Launch
startups that matter
Grow
together, win together
Why it works
Listed profiles
Contribution first
Members describe what they can own for a company before they describe themselves.
Room standard
No hiring theater
The network is for cofounder-level partnership, not recruiting, freelancing, or idea shopping.
NYC layer
Online plus IRL
Discovery happens on the site; trust compounds through local founder and engineer rooms.
Who's in the room
Cofounder NYC brings together operators who can state what they will own: product, engineering, design, sales, growth, capital, or customer access.
EngineersPeople who can own the first shipped product: backend, infra, AI, mobile, web, and the tradeoffs that come with launch.
Product & designOperators who turn customer pain into product direction, prototypes, onboarding, pricing, and a launchable user experience.
FoundersFounders with execution, traction, capital, customers, or domain insight who are ready to form a company.
GTMPeople who can find customers, build trust, open doors, and turn early usage into a company people know about.

Founders & Engineers NYC
Cofounder NYC is online discovery plus real rooms. The meetup gives local founders, engineers, and builders a place to meet before a company starts.
Open Meetup groupOpen to new partnerships
7 NYC builders with a clear role, a concrete deliverable, and a reason to meet.
Manhattan · Full-time
Can deliver
Production MVP + Web Product
I deliver custom web and mobile applications, AI-powered business solutions, business process automation, analytics dashboards and reporting systems, internal operational software, technology strategy, product roadmaps, and engineering leadership to help organizations build, scale, and operate more effectively.
Looking for
Looking for a founder with deep knowledge and experience in a particular industry who understands the products or services, customer pain points, and industry needs.
Queens · Nights & weekends
Can deliver
Customer Validation + Milestone Plan
I have proven business experience as an entrepreneur and co-founded who has scaled a strategy consultancy to successful acquisition. Currently an executive-level manager at a large global media agency, I'm capable of building sales pipelines, partnership, managing complex global teams and projects, and applying data science and analytics to strategy and planning in pursuit of business goals.
Looking for
I've created a media company and already released test-and-learn episodes since late 2025. Now I'm looking for co-founders to manage creative/brand, marketing, and production.
Manhattan · Nights & weekends
Can deliver
Production MVP + Data Product
I sit at the intersection of engineering, research, and ops, and enjoy owning both the infrastructure that turns raw data into decisions and the cross-functional work that gets it adopted. Most recently I've been working at a climate-focused investment firm, where I've taken on full ownership of the data and cloud infrastructure following the CTO's departure, while also running the climate research it feeds. Before that I worked as a quant trader, where I building statistical fitting pipelines and wrote low latency trading algorithms in a custom programming language.
Looking for
A cofounder with strong product and market instincts. I excel at owning the technical and operational backbone: infrastructure, data, and execution.
Brooklyn, Queens, Mahattan, Staten Island · Part-time
Can deliver
Launch Plan + Validated Company Thesis
I am a startup operator and Chief Operting Officer with a track record of building and scaling consumer brands. I co-founded and succesfully exited K-10+, a pet vitamin and supplement company, where I led operations across supply chain, product development, go-to market execution, brand positioning, and sales and marketing. I currently serve as COO to launch Eugene, an AI-driven pet wellness and supplement company. My focus is translating early-stage ideas into structured, scalable buisinesses by building systems that support growth while maintaining product quality and margin discipline. I bring a practical, execution-first approach to startups--comfortable moving from high-level strategy to day-to-day operations. My experience spans supply chain optimization, vendor navigation, performance marketing, and P&L ownership, with a particular strength in turning fragmented processes into repeatable systems that drive scale. I am interested in connecting with Founders who value strong operational leadership. Secondly, I am looking for a co-founder with an engineer/developer background to build an MVP for a mobile and online home renovation marketplace and lead-generation platform.
Looking for
An engineer co-founder to create an MVP for online marketplace and lead-generation platfrom for home improvement. Additionally, I am looking for opportunities to infuse my expertise to build and launch other products.
Brooklyn, NY · Full-time
Can deliver
Business Model + Validated Company Thesis
I have a unique style and brand vision that has high proof-of-concept outcomes, but will need an early team to be able to meet the production demands of those interested in the brand, its products, and its projects.
Looking for
Looking for an operations-focused individual who understands the direction of modern business structure.
Manhattan · Full-time
Can deliver
Mobile Product + SaaS Platform
I have a background in psychology and several years working in psychiatric admissions at a major hospital system, where I saw firsthand how much clinician time is lost to documentation, fragmented patient information, and administrative work. I’m exploring an AI platform built specifically for psychiatry and therapy that helps clinicians organize patient data, summarize check-ins, surface meaningful trends over time, and reduce documentation burden while keeping clinicians firmly in control of every medical decision. I’m looking for a technical cofounder who’s excited about building healthcare AI responsibly. I’ll own customer discovery, product vision, clinician relationships, workflow design, and validation. I’m looking for someone who wants to build something that could genuinely improve mental healthcare rather than just another AI chatbot.
Looking for
Technical cofounder with experience in AI/LLMs and full-stack product development who’s interested in healthcare technology, clinical workflows, and building secure SaaS products.
Join the room
Add yourself to the NYC directory, show what you can deliver, and meet the people you could form a company with.