Deploy Dialtone Agents to automate your workflows, and use them from your chat and email systems - all with your existing enterprise security controls.
Founders · Product
- Founded
- 2023
- Team
- 2 people
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137 businesses
Bring one real workflow and we'll automate it live in 30 minutes. Trelium AI agents handle order entry, quotes, and PO matching for enterprises.
Customers · Founders · Product · How it works
- Founded
- 2025
- Team
- 6 people
We are building a new class of interpretable AI systems and foundation models that humans can reliably debug, trust, and understand.
Product
- Founded
- 2023
- Team
- 6 people
We find flaws in RL environments and evals and help you fix them.
Founders · Product
- Founded
- 2026
- Team
- 3 people
BAML is one toolchain from the compiler to production. Build, test, trace, query, and alert on your code with tools that all read the same types.
Founders · Product
- Founded
- 2023
- Team
- 10 people
Attribute AI spend to the customer, feature, team, or pull request that caused it, across OpenAI, Anthropic, Cursor, and every other provider you use. Free to start.
Founders · Pricing · Product · How it works
- Founded
- 2026
- Team
- 2 people
Hopper trains open-weight models on your production traces, then serves and improves them against your live traffic.
Founders
- Founded
- 2026
- Team
- 2 people
We are an applied research lab building novel data harvesting techniques.
Founders
- Founded
- 2023
- Team
- 6 people
Trace every run. Auto-fix silent failures. Simulate before shipping. Raindrop helps you detect agent issues and prevent them from happening.
Founders · Product
- Founded
- 2023
- Team
- 9 people
Moss delivers sub-10ms semantic search for conversational AI, voice agents, and copilots. Connect your data once — Moss indexes and distributes it wherever your agent runs: in-browser, on-device, or in the cloud.
Pricing · Product · How it works
- Founded
- 2024
- Team
- 5 people
Give your agent an inbox of its own. AgentMail is the email infrastructure built for AI agents: send, receive and act on email at scale.
Founders · Pricing · How it works
- Founded
- 2025
- Team
- 10 people
Train the models only you can build. SF Tensor provides one optimized, cross-vendor training stack for enterprise post-training and frontier pre-training.
Product · How it works
- Founded
- 2025
- Team
- 6 people
Primitive is email infrastructure for AI agents: universal email addresses, hosted functions, and transactional email over the protocol every business already uses. It also ships a ChatGPT app — an in-agent MCP App UI built on the…
- Founded
- 2026
- Team
- 4 people
Butter is building bVisor, an incredibly lightweight sandbox runtime for AI agents.
Founders · Product
- Founded
- 2024
- Team
- 2 people
At Reform, we’re building a platform for building and managing AI agents that perform high-stakes operational work. Some of the most critical industries today run on outdated systems, spreadsheets, and manual processes - creating…
Founders · Product · How it works
- Founded
- 2023
- Team
- 13 people
We research the psychology of how LLMs learn, and turn it into new training techniques that train custom models and harnesses together.
Founders · Product
- Founded
- 2025
We build distributed compute clusters with the cheapest CPUs and GPUs across Hyperscalers and Neoclouds for AI. Our mission is to bring frontier-grade infrastructure to everyone. We're starting by building large scale high…
Founders · Product
- Founded
- 2026
- Team
- 2 people
Inkbox gives AI agents an identity, communication channels, and their own computer.
Founders · Pricing · Product · How it works
- Founded
- 2025
- Team
- 3 people
TrainLoop makes it effortless for developers to supercharge LLM performance through reinforcement learning.
Founders
- Founded
- 2025
- Team
- 6 people
Bluejay is the QA platform for AI agents. Rigorously test your voice agents—before and after deployment. Simulate edge cases, catch regressions, ensure security, and benchmark performance. Stop vibe testing. Quality is engineered.
Founders
- Founded
- 2025
- Team
- 10 people
Turn videos into structured data with Dragoneye zero-shot vision models. No data labeling or model training.
Founders · Product · How it works
- Founded
- 2023
- Team
- 2 people
Mundo develops data, evaluations, and applied research for frontier labs and AI companies to advance perceptual intelligence across audio, video, and emerging modalities.
Founders
- Founded
- 2024
- Team
- 30 people
Markov is the data lab for engineering and computer-use. We capture real work from domain experts and craft high-fidelity datasets and RL environments.
Founders · Product
- Founded
- 2026
- Team
- 2 people
Sureform helps companies transform their internal operational data into high-quality RL environments and de-identified datasets that can be licensed to leading AI labs for model training.
How it works
- Founded
- 2025
- Team
- 2 people