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LangGraphPython Graph-Based Framework

LangGraph AI Agent Agencies

LangGraph extends LangChain with a graph-based execution model: workflows are directed graphs where nodes are agent steps and edges are conditional transitions. This enables loops, parallel execution, and recoverable long-running processes — capabilities that flat chains cannot provide. LangGraph's checkpointing system persists state at every step, enabling human-in-the-loop interrupts and failure recovery. It has become the standard for production-grade complex agentic workflows. Any LangGraph AI agent development agency serious about production systems will use LangGraph for multi-agent architectures that require auditability and state recovery. As an open-source Python AI agent framework backed by LangChain Inc., LangGraph is the most complete option for AI agent development companies building enterprise-grade stateful systems. If you need to hire LangGraph developers or find an AI automation agency for long-running workflow orchestration, this is the definitive framework.

50
Agencies Listed
$9k
Avg. Min. Project
100%
Remote-Friendly
561
Case Studies
FRAMEWORK
7k GitHub Stars820k/wk PyPIPython/JSSince 2024MIT
When to Use LangGraph
Your workflow requires loops — retry a failed step, iterate until a condition is met
You need conditional branching where the next step depends on intermediate results
The workflow is long-running and must be recoverable if it fails mid-execution
Human approval or review is required at specific checkpoints in the workflow
You're building complex multi-agent architectures with supervisor and specialist agents
What to Look for in an Agency
Ability to design state schemas — well-typed state is the foundation of reliable LangGraph apps
Experience with checkpointers in production (PostgreSQL or Redis, not just MemorySaver)
Human-in-the-loop implementation: interrupt → external review → resume patterns
Multi-agent subgraph architecture — supervisor patterns, handoffs via Command
LangSmith tracing set up for graph-level debugging, not just node-level
Typical LangGraph Projects
Long-running research agents with human-in-the-loop review steps
Complex customer service workflows with escalation paths and approvals
Multi-agent systems with supervisor agents delegating to specialist subgraphs
Autonomous coding agents with test-run-fix iteration loops
Enterprise workflows requiring auditability and state persistence

50 LangGraph Agencies

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google-gemini
Remote · 21-50
20 cases
LangGraphCrewAI

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Topoteretes
Remote · 6-20
19 cases
LangGraphCrewAIn8n

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From $15k
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abab.ai
Remote · 6-20
11 cases
LangChainLangGraphAutoGen

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From $5k
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The Neural Maze
Remote · 21-50
8 cases
LangGraphGroq

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From $25k
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LangGraph4j
Remote · 6-20
17 cases
LangGraph

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From $10k
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PurpleAILAB
Remote · 6-20
3 cases
LangChainLangGraph

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From $5k
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BrowserOperator
Remote · 1-5
1 cases
LangGraphOpenAIOllama

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From $5k
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Datawhale
Remote · 21-50
20 cases
LangChainLangGraphAnthropic

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From $25k
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VirtualPatientEngine
Remote · 6-20
6 cases
LangChainLangGraph

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From $5k
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Agentailor
Remote · 6-20
9 cases
LangChainLangGraphOpenAI

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From $5k
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AGIFlow
Remote · 6-20
11 cases
LangGraphCrewAI

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Zyni Innovations
Remote · 1-5
1 cases
LangChainLangGraphOpenAI

We focus on developing AI-native applications designed to solve real-world problems. Currently developing Test...

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teddynote Lab
Remote · 6-20
20 cases
LangChainLangGraph

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From $15k
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Masumi Network
Remote · 6-20
20 cases
LangGraph

Masumi is a decentralized protocol empowering AI agents to collaborate seamlessly and monetize their services ...

From $10k
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OpenARCIS
Remote · 1-5
2 cases
LangGraph

Autonomous Reasoning and Contextual Intelligence System. An alternative to OpenClaw built with LangGraph...

From $5k
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Gopher Security
Remote · 6-20
20 cases
LangChainLangGraph

On-Demand MCP server & gateway with enterprise security, connecting agentic workflows to any enterprise stacks...

From $5k
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JamJet
Remote · 1-5
5 cases
LangGraph

The agent-native runtime for production AI. Durable execution · Native MCP + A2A · Rust core · Python SDK....

From $5k
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Tableau
Seattle, WA · 21-50
20 cases
LangChainLangGraph

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ZON
Remote · 1-5
8 cases
LangChainLangGraphDSPy

Zero Overhead Notation - A human-readable data serialization format optimized for LLM token efficiency....

From $5k
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MyScale
Remote · 6-20
20 cases
LangChainLangGraph

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From $10k
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Akveo
Remote · 6-20
20 cases
LangGraph

Akveo is a devoted team of engineers, consultants and designers. We'll help you envision, build, and optimize ...

From $15k
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Proactive Agent
Remote · 1-5
1 cases
LangGraph

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From $5k
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omics-os
Remote · 1-5
6 cases
LangChainLangGraph

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Proact0
Remote · 1-5
8 cases
LangChainLangGraph

The open-source hub setting global AX standards, enabling efficient systems on a unified AX foundation....

From $5k
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pollinations.ai
Remote · 21-50
10 cases
LangChainLangGraph

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From $25k
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STX Next
Los Angeles, CA · 21-50
20 cases
LangChainLangGraph

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From $5k
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Tadata
Remote · 6-20
10 cases
LangChainLangGraph

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From $10k
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Endevsols
Remote · 1-5
2 cases
LangChainLangGraphOpenAI

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From $5k
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Synergy AI
Los Angeles, CA · 1-5
6 cases
LangChainLangGraph

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From $5k
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Okahu Agentic Observability + Evaluations Demos
Remote · 6-20
14 cases
LangChainLangGraphCrewAILlamaIndex

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From $5k
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Mindify AI
Remote · 6-20
13 cases
LangChainLangGraph

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From $5k
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Tübingen AI Center
Remote · 1-5
1 cases
LangGraph

Tübingen AI Center is a thriving hub for European AI with purpose, hosted by the Eberhard Karls University of ...

From $5k
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Open eXecution Protocol (OXP)
Remote · 1-5
4 cases
LangChainLangGraph

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From $5k
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Neul Labs
Remote · 6-20
20 cases
LangChainLangGraphCrewAIAutoGen

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From $5k
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MSU Denver Computer Sciences
Remote · 6-20
6 cases
LangChainLangGraph

Building community-centered technology through research, education, and cybersecurity...

From $10k
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StabRise
Remote · 1-5
8 cases
LangChainLangGraph

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From $5k
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Timbr.ai
Remote · 6-20
13 cases
LangChainLangGraph

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From $5k
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Student Trainee Center
Remote · 6-20
20 cases
LangGraphOpenAI

A prestigious program for high school students with a passion for modern technologies and a desire to move on ...

From $5k
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The Boring Education
Remote · 6-20
13 cases
LangChainLangGraph

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From $5k
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Aiuda Labs
Remote · 6-20
20 cases
LangChainLangGraph

Our commitment is to empower your business with effortless access to cutting-edge AI technologies....

From $5k
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Human-centered Systems Lab
Remote · 6-20
10 cases
LangGraph

The human-centered systems lab (h-lab) headed by Prof. Maedche (research group “Information Systems I”) focuse...

From $5k
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Aparsoft
Remote · 1-5
5 cases
LangChainLangGraphOpenAIMistral

AI-Powered Innovation for Digital Transformation | Quick AI Solutions in 10-15 Days | Enterprise SaaS Platform...

From $5k
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OpenLib x402
Remote · 1-5
4 cases
LangChainLangGraph

AI-native x402 integrations for the Solana ecosystem. Open-source. Accelerate. Available on PyPI + npm....

From $5k
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Intelligex
Remote · 1-5
2 cases
LangChainLangGraphOllama

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From $5k
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Code Crafters
Remote · 6-20
10 cases
LangGraphOpenAI

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From $5k
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daslearning.in
Remote · 6-20
14 cases
LangChainLangGraphOllama

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GeniusKitchen.ai
Remote · 1-5
6 cases
LangChainLangGraphCrewAIAutoGen

A service of IzzyAcademy.ai - building a community of intentional AI engineers, architects & developers lookin...

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Couchbase Ecosystem
Remote · 6-20
20 cases
LangChainLangGraphn8nSemantic Kernel

Developer Tools and Integrations to Couchbase Server, Couchbase Capella, and Couchbase Mobile...

From $5k
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H2O.ai
Mountain View, CA · 21-50
20 cases
LangGraphn8n

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From $25k
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AIProduct.Engineer
Remote · 6-20
14 cases
LangGraph

We are the community building the AI products of the future! AI Product Engineer empowers you to integrate rea...

From $5k
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LangGraph Agency — Frequently Asked Questions

What is a LangGraph agency?+

A LangGraph agency specializes in building stateful, graph-based AI agent workflows using LangGraph — LangChain's extension for complex agentic systems. They design directed graph workflows with loops, conditional branching, checkpointing, and human-in-the-loop capabilities that simple chain-based agents cannot achieve.

When do I need LangGraph instead of basic LangChain?+

You need LangGraph when your agent workflow requires loops (retrying a step based on output), conditional routing (different paths based on intermediate results), human approval at checkpoints, long-running execution with failure recovery, or parallel agent execution. If your workflow is linear, basic LangChain chains are simpler.

How difficult is LangGraph to build with?+

LangGraph has a higher learning curve than CrewAI or basic LangChain. It requires comfort with graph-based thinking, typed state schemas, and understanding of how checkpointers work. Most LangGraph agencies recommend building the canonical ReAct agent from scratch before attempting production systems.

How much does LangGraph development cost?+

LangGraph projects are typically more expensive than simpler framework work due to the complexity involved. Expect $15,000–$30,000 for a production LangGraph agent system. Simpler stateful workflows can be built for $8,000–$15,000. Complex multi-agent architectures with subgraphs run $30,000–$100,000+.

What is the difference between LangGraph and AutoGen?+

LangGraph uses a graph-based model where the developer explicitly defines nodes (steps) and edges (transitions). AutoGen uses a conversation-based model where agents coordinate through message passing. LangGraph gives more explicit control over workflow structure; AutoGen is more flexible for emergent conversational coordination.

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