Software Development startups in San Francisco

Firebender

San Francisco

Firebender is an AI software company that develops AI coding assistance tools. Founded in 2024, it has raised $3.5 million in funding and currently has a team of three.

Chalk

San Francisco

The data platform for inference. Build, deploy, and iterate faster with Chalk's feature engine.

HappyRobot

San Francisco

HappyRobot offers an AI-native operating system for real economy, starting with supply chains. It has raised $62M, including a $44M Series B in Sept 2025, from YC, Andreessen Horowitz, and Base10, led by Pablo and Javier Palafox and Luis Pa

Outset

San Francisco

Outset, a Y Combinator–backed startup, uses AI and ChatGPT to conduct in-depth qualitative interviews at scale, aiming to revolutionize qualitative research and deliver rich, scalable insights through innovative research tooling.

Greybeam

San Francisco

Greybeam is an early-stage data platform company that routes each query to its optimal engine, directing large queries to MPPs and smaller ones to in-process engines. It currently targets Snowflake BI workloads, delivering ~80% cost reducti

Tailor

San Francisco

Tailor is the first and only headless ERP. Tailor helps retail companies connect all their off-the-shelf tools, omnichannel marketplaces, and people on one open platform. Other ERPs are monolithic or lack the sophistication and reliability to rapidly scale operations. Tailor is built using the cutting edge of API-first and low-code technology — so you can launch ERP solutions in weeks instead of months. Tailor helps you react to changing markets, increase margins and take advantage of new opportunities with solutions for inventory management, supply chain, purchasing, production, accounting, omnichannel orders and more.

Foxglove

San Francisco

Foxglove provides interactive visualization, debugging, and data management tools for robotic development, helping developers understand how robots sense, think, and act in dynamic and unpredictable environments, with a focus on performance

TrueClaim

San Francisco

TrueClaim provides an AI-enabled platform for health plans, focused on advancing health-plan technology and modern operations.

Headquarters

San Francisco

The company provides best-in-class concussion care accessible to everyone, based in San Francisco, and is backed by world-class doctors and investors, including the founding teams of OpenAI and Facebook AI Research.

Prophecy Gov

San Francisco

GovTech startup building a nationwide data network and AI agents for US cities to enable AI-powered municipal solutions, targeting a $3 trillion annual city spend; 15+ cities in 10+ states with plans for 100+ by 2026, and $2M raised.

Cleanlab

San Francisco

Cleanlab democratizes safe, trustworthy generative AI and leads with cleanlab, an open-source ML data quality framework used by top companies. Its research in AI conferences and wide adoption establish Cleanlab as a leading provider of resp

Stainless

San Francisco

✱ Stainless provides robust & polished SDKs for your REST API.They're idiomatic, type-safe, and engineered to feel like handwritten code.API-first companies like OpenAI, Anthropic, Meta, Cloudflare, and Scale use Stainless to generate SDKs

Composio

San Francisco

Composio builds infrastructure allowing agents to connect with GitHub, Gmail, Notion, and Salesforce, bridging agents and tools. It raised a $25M Series A from Lightspeed, grew ARR 3x by 2026, and counts Wabi, Glean, and Zoom as customers.

Runpod

San Francisco

Runpod provides cost-effective GPU cloud computing services for training, deploying, and scaling AI models. With GPU Cloud, users can spin up an on-demand GPU instance in a few clicks. With Serverless, users can create autoscaling API endpoints for scaling inference on their models in production. Runpod was founded in 2022 and is headquartered in New Jersey.

Enterpret

San Francisco

Enterpret uses AI and large language models to turn customer feedback into actionable insights for product and CX leaders, counting Notion, Chipotle, and Perplexity among its notable clients.

Parspec

San Francisco

Parspec revolutionizes the materials supply chain for the global construction industry and is backed by leading venture investors; trusted by designers, builders, distributors, manufacturers, and sales agents as it pursues a more innovative

Hyperbolic Labs

San Francisco

At Hyperbolic, we’re building the leading open-access AI cloud. Access inference and compute at a fraction of the cost, and build AI applications without relying on centralized infrastructures. We invite builders, compute providers, researchers, and individuals to join us on this journey.

Verita AI

San Francisco

Verita AI is a company pioneering the next generation of intelligence systems trusted by innovators, enterprises, and market leaders. Advancing how people learn, work, and think is the most meaningful problem we can tackle.

TestBox

San Francisco

TestBox provides real, live product environments for demos and proofs of concept, not clones, simulations, or overlays. Its data-first approach accelerates deal cycles, builds trust, and reduces reliance on technical resources for B2B custo

SparkPlug

San Francisco

In complex CPG verticals like beauty, electronics, and outdoor gear, customers rely on the product recommendation of point-of-purchase experts up to 92% of the time. SparkPlug allows brands to directly reward these key influencers for every sale they generate with cash via gamified commissions, contests, and goals. We drive more revenue for brands, improve employee performance for retailers, and empower frontline workers across the world with fair compensation and economic equality, all based on the sales revenue they generate each day.

deCircle

San Francisco

deCircle is a boutique recruitment agency focused on blockchain and Web3, helping decentralized-technology organizations hire across technical and non-technical roles. Founded in 2019, with offices including London and San Francisco.

Paramark

San Francisco

Paramark helps CMOs and CFOs invest in marketing with confidence, building a system of record to forecast impact and test ideas. Founded in 2023, based in San Francisco, it serves $10M–$100M+ spenders with an $80k ACV and has raised $8M.

Base.org Careers Page

San Francisco

Make more intelligent business decisions in web3 using Spindl’s attribution tooling.

Blaze

San Francisco

Blaze is the first AI agent that handles marketing for you, founded by Faiyam Rahman and Luc Succès and backed by Y Combinator. Its mission is to free business owners and marketing teams to focus on high-impact growth.

Parity

San Francisco

Parity builds AI SRE for incident response, line of defense for on-call engineers, with adoption and backing from Y Combinator, General Catalyst, Sugar Free Capital, and angels from Midjourney and Crusoe; founded by Jeffrey, Coleman, and Wi

Plaud

San Francisco

Plaud, a Delaware-incorporated, San Francisco–based company, is building the world’s most trusted AI work companion to boost productivity via note-taking. Operating since 2023 with 1+ million users, it combines hardware and software and maintains SOC 2, HIPAA, GDPR, EN18031 compliance.

Redpanda Data

San Francisco

Redpanda is pioneering the Agentic Data Plane (ADP) - a new category in AI infrastructure that makes it simple and secure to connect AI agents with enterprise data and systems. Built on a multi-modal data streaming engine, Redpanda empowers agentic applications that reason and act in real-time with speed, autonomy, and precision. Global leaders including Activision Blizzard, Cisco, Moody's, Texas Instruments, Vodafone and 2 of the top 5 banks in the U.S. rely on Redpanda to process hundreds of terabytes of data a day. Backed by premier venture investors Lightspeed, GV and Haystack VC, Redpanda is a diverse, people-first organization with teams distributed around the globe.

Weights & Biases

San Francisco

Weights & Biases: the AI developer platform. Build better models faster, fine-tune LLMs, develop GenAI applications with confidence, all in one system of record developers are excited to use. W&B Models is the MLOps solution used by foundation model builders and enterprises who are training, fine-tuning, and deploying models into production. W&B Weave is the LLMOps solution for software developers who want a lightweight but powerful toolset to help them track and evaluate LLM applications. Weights & Biases is trusted by over a 1,000 companies to productionize AI at scale including teams at OpenAI, Meta, NVIDIA, Cohere, Toyota, Square, Salesforce, and Microsoft. Sign up for a 30-day free trial today at http://wandb.me/trial.

OpenSpace

SAN FRANCISCO

OpenSpace is the Visual Intelligence Platform for builders. Capture the reality of your sites with smartphones, 360° cameras, and drones, and turn that reality into real-time, actionable intelligence and simpler workflows. One platform that fits how you work, integrated with Procore and Autodesk. Clarity for better decisions, faster.

Labelbox

San Francisco

Labelbox provides critical AI data infrastructure that powers model development for leading research labs and enterprises. Founded in 2018, it emphasizes data-centric approaches fundamental to AI development.

Afresh

San Francisco

Afresh is on a mission to eliminate food waste and make fresh food accessible to all. Our first A.I.-powered solution optimizes ordering, forecasting, and store operations for fresh food departments in brick-and-mortar grocers. With our Fresh Operating System, regional and national grocery retailers have placed $1.6 billion in produce orders across the US and we've helped our partners prevent 34 million pounds of food from going to waste. Working at Afresh represents a one-of-a-kind opportunity to have massive social impact at scale by leveraging uncommonly impactful software!

Trusted Health

San Francisco

Trusted, Inc. is the leading labor marketplace and workforce management platform for the healthcare industry. The company was founded in 2017 with a focus on the largest profession in healthcare: nursing. Since then, they've taken a process that has been dominated by recruiters and phone calls and turned that into a a fully digital experience, connecting nurses directly to job opportunities and facilitating everything that needs to happen in between—including handling benefits, payroll, onboarding, and compliance. Their platform also provides full employer-of-record services for employers in all 50 states and the District of Columbia. In 2020, they launched their proprietary staffing platform, Works (www.works.ai). Works helps hospitals meet one of their single biggest challenges: ensuring that every shift gets filled in an environment where both demand for healthcare services and the cost of labor are increasing exponentially. With Works, facilities can create their own on-demand nursing workforce and access one source of truth for all of their clinical workforce needs, from sourcing and onboarding to ongoing compliance. With predictive insights and recommendations, Works helps hospitals easily react to fluctuations in demand, while its staffing marketplace creates competition to fill open job requisitions with high-quality, active talent from a pre-onboarded network of talent suppliers. The company has support from top institutional investors such as Craft Ventures, Felicis Ventures, StepStone Group and Founder Collective, as well as healthcare innovators like Texas Medical Center, Mercy Health, Intermountain Ventures, Town Hall Ventures, and Healthbox. In 2020, they were featured on Forbes Next Billion Dollar Startups List.

Semgrep

San Francisco

Semgrep provides a popular static application security testing (SAST) solution used by Snowflake, Plaid, Figma, Lyft, and Dropbox to secure software; backed by top venture investors like Sequoia, Lightspeed, Felicis, Menlo, and Redpoint.

Sendoso

San Francisco

Sendoso is the gifting and direct mail platform that helps revenue teams 6x second call rates, double win rates and close deals 29% faster.

Honeycomb.io

San Francisco

Honeycomb is the observability platform that enables engineering teams to find and solve problems they couldn't before. Honeycomb’s approach is fundamentally different from other tools that claim observability, and is built to help teams answer novel questions about their ever-evolving cloud applications. Other tools silo your data across disjointed pillars (logs, metrics, and traces), are too slow, and constrain teams to only answer predetermined questions. Honeycomb unifies all data sources in a single type, returning queries in seconds – not minutes – and revealing critical issues that logs and metrics alone can’t see. Using the power of distributed tracing and a query engine designed for highly-contextual telemetry data, Honeycomb reveals both why a problem is happening and who specifically is impacted. Every interface is interactive, enabling any engineer – no matter how tenured – to ask questions on the fly, drill down by any dimension and solve issues before customers notice. Powered by machine learning, BubbleUp enables you to quickly spot outliers that reveal the cause of hidden issues. Engineering teams can deploy confidently, resolve incidents faster and focus on high-value work that drives innovation.

Retool

San Francisco

Build internal software better with AI. Create apps, agents, and workflows with any LLM, datasource, or API to deploy AI across your business. Retool is the application layer for AI and leading platform for internal software development, trusted by over 10,000 companies worldwide, including Amazon, Stripe, Brex, and Orangetheory Fitness. Using Retool, developers deploy sophisticated apps and agents dramatically faster without sacrificing quality or control, combining powerful building blocks with the flexibility of custom code. To learn more and start building for free today, visit https://retool.com

Linear

San Francisco

At Linear, we are on a mission to bring magic back to software. To empower product teams to do their best work, we are building an issue tracking and project management tool that combines UI elegance with world-class performance. Founded in 2019, Linear has become the tool of choice for thousands of high-impact companies to build their products better. Linear was set up as a fully remote company from the start. Today, our small but mighty team is distributed across North America and Europe. What unites us is relentless focus, fast execution, and our passion for software craftsmanship. We are all makers at heart and care deeply about the quality of our work.

Workstream

San Francisco

Workstream is the modern all-in-one HR and payroll solution built specifically for restaurants, and trusted by 30,000+ locations. 46 of the top 50 quick-service restaurant brands, including Burger King, Jimmy John’s, Taco Bell, and more, rely on Workstream power their restaurants.

LucidLink

San Francisco

LucidLink transforms how organizations work with data. Recognized with a Technology & Engineering Emmy® Award, our platform provides instant, secure access to large files through a shared, encrypted filespace—empowering teams to collaborate in real time from anywhere in the world.

Cortex

San Francisco

Cortex is an internal developer portal built to accelerate the path to engineering excellence. Companies like Blackstone, Xero, and SoFi use Cortex to automatically catalog, continuously assess, and confidently deploy high quality software.