Startup
WRITER
Reach the frontier of enterprise growth
WRITER is an enterprise AI platform whose core product, WRITER Agent, executes multi-step work across business systems. It provides Playbooks (natural-language multi-step workflows), reusable Skills, Connectors for acting in business apps, AI Studio for monitoring and governing agents, and an Enterprise Brain context layer, running on its own Palmyra models.
Neighbours in the directory
San Francisco, CA · Est. 2022
The de-facto standard toolkit for building LLM applications and agents.
LangChain makes the LangChain framework and LangGraph, the low-level orchestration standard for stateful, controllable agents, plus the LangSmith platform for tracing, evaluating and monitoring them in production.
~$75M raised
San Francisco, CA · Est. 2023
Conversational AI agents for customer experience.
Sierra, co-founded by Bret Taylor and Clay Bavor, builds production conversational agents that resolve real customer issues with guardrails, evaluation and human escalation — a template for deploying vertical agents at the enterprise edge.
~$10B valuation (Oct 2025)
Coral Gables, FL · Est. 2023
Multi-agent orchestration, from open-source framework to enterprise platform.
CrewAI popularized role-based multi-agent teams ('crews') with a simple mental model and ships an enterprise control plane for deploying, monitoring and governing them.
$18M Series A led by Craft Ventures (2024)
Connections
Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.
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Sources
Verified Oct 29, 2026