Built100
Independent editorial ranking · Refreshed weekly

The tech & startup companies building the future, ranked.

Curated lists for every corner of tech — compiled from operator submissions and editorial research, not crowd votes. See the methodology.

Featured across the Built 100

The Built 100

Week of Jun 22, 2026

Ranked by momentum — the companies generating the most signal right now.

#
Company
This week
1
OpenAI#1 in AI
Builds ChatGPT and GPT frontier foundation models
AI·Late-stage·San Francisco, California
OpenAI
AI
Still the gravitational center of the AI boom — ChatGPT's reach and a relentless model cadence keep every other company on this list reacting to it.
Read feature →
Peak #1 · 25 wks
2
Builds Claude frontier models and AI assistant
AI·Late-stage·Cambridge, Massachusetts
Peak #1 · 2 wks
3
Builds Grok foundation models, integrated with X
AI·Late-stage·Palo Alto, California
▲ 1Peak #2 · 8 wks
4
Databricks#1 in Dev Tools
Data lakehouse and AI/ML analytics platform
Dev Tools·Late-stage·San Francisco, California
▲ 1Peak #3 · 3 wks
5
Stripe#1 in Fintech
Payments infrastructure and APIs for businesses
Fintech·Late-stage·South San Francisco, California
▼ 2Peak #1 · 21 wks
6
Corporate cards and spend-management automation
Fintech·Late-stage·New York, New York
▲ 4Peak #4 · 21 wks
7
Cyera#1 in Cybersecurity
AI-driven data security posture management
Cybersecurity·Late-stage·New York, New York
▲ 30Peak #7 · 11 wks
8
Commure#1 in Healthtech
AI revenue-cycle and clinical ops platform
Healthtech·Late-stage·Mountain View, California
▲ 28Peak #8 · 2 wks
9
Crusoe#1 in Climate & Energy
Energy-first AI data-center infrastructure
Climate & Energy·Late-stage·Denver, Colorado
Crusoe
Climate & Energy
Quietly became one of the most important names in AI infrastructure by solving the boom's real bottleneck: power and data-center capacity.
Read feature →
▲ 8Peak #9 · 4 wks
11
Conversational AI agents for customer experience
AI·Late-stage·San Francisco, California
▲ 21Peak #10 · 14 wks
12
AI model inference and deployment infrastructure
Dev Tools·Late-stage·San Francisco, California
▲ 32Peak #12 · 24 wks
13
Agentless cloud security and risk platform
Cybersecurity·Late-stage·New York, New York
▼ 4Peak #9 · 22 wks
14
CognitionEditors' Choice
Devin, the autonomous AI software engineer
AI·Series D·San Francisco, California
Cognition
AI
Devin moved from viral demo to teams merging its pull requests. The question is no longer whether agents can code — it's how much you'll hand them.
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▼ 6Peak #6 · 17 wks
15
Deel#1 in SaaS / B2B
Global payroll and contractor compliance platform
SaaS / B2B·Late-stage·San Francisco, California
▲ 7Peak #15 · 13 wks
16
TeamFeedEditors' Choice
A workplace OS where companies hire AI teammates, not just tools
SaaS / B2B·Seed·Austin, TX
TeamFeed
SaaS / B2B
TeamFeed starts from an inversion: you don’t buy another tool, you hire a teammate. Its workplace OS lets companies bring on AI teammates that work alongside the…
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NEWPeak #16 · 1 wk
17
Regulated event-contract prediction market exchange
Fintech·Series E·New York, New York
▲ 53Peak #14 · 12 wks
18
Business banking platform for startups and SMBs
Fintech·Late-stage·San Francisco, California
▲ 1Peak #13 · 11 wks
19
Quince#1 in Consumer
Direct-from-factory affordable premium goods
Consumer·Late-stage·San Francisco, California
▲ 67Peak #12 · 10 wks
21
Frontier models for multi-step agentic reasoning
AI·Series B·San Francisco, California
▲ 59Peak #19 · 1 wk
22
AI-powered CI/CD and software-delivery platform
Dev Tools·Late-stage·San Francisco, California
▲ 2Peak #22 · 24 wks
23
Wearable band for fitness and health tracking
Healthtech·Late-stage·Boston, Massachusetts
▲ 17Peak #23 · 20 wks
24
Generative AI video creation models
Consumer·Late-stage·New York, New York
▼ 8Peak #16 · 16 wks
25
AI marketplace matching expert talent to labs
AI·Series C·San Francisco, California
▲ 14Peak #23 · 11 wks
26
Open-source Postgres backend, auth, storage
Dev Tools·Series D·Midland, Texas
▼ 1Peak #21 · 1 wk
27
Ambient AI clinical documentation for clinicians
Healthtech·Series E·San Francisco, California
▲ 8Peak #22 · 1 wk
28
Open-source columnar DB for real-time analytics
Dev Tools·Late-stage·Palo Alto, California
▲ 40Peak #28 · 20 wks
29
Enhanced geothermal developer for firm clean power
Climate & Energy·Series E·Houston, Texas
▲ 54Peak #29 · 17 wks
30
Cursor (Anysphere)Editors' Choice
AI-native code editor with agent mode
Dev Tools·Series D·San Francisco, California
Cursor (Anysphere)
Dev Tools
The AI code editor developers actually switched to. Adoption exploded across engineering teams this year, and a reported acquisition only underscores how central…
Read feature →
▼ 23Peak #7 · 15 wks
Category collection

Top 20 in AI

Models, agents & infrastructure.

See the cut
31
Crypto-based prediction market for real-world events
Fintech·Late-stage·New York, New York
▲ 63Peak #30 · 9 wks
32
Tech-driven global freight and logistics platform
Consumer·Late-stage·San Francisco, California
▲ 6Peak #29 · 8 wks
33
AI music generation from text prompts
Consumer·Series D·Cambridge, Massachusetts
▼ 6Peak #27 · 1 wk
34
Marketplace for fractional luxury-home co-ownership
Consumer·Late-stage·San Francisco, California
▲ 67Peak #28 · 1 wk
35
AI app builder turning prompts into full apps
AI·Series B·Stockholm, Stockholm County
▼ 4Peak #21 · 18 wks
36
Unified HR, IT, and finance employee platform
SaaS / B2B·Late-stage·San Francisco, California
▼ 16Peak #20 · 15 wks
37
Building compact tokamak fusion power plants
Climate & Energy·Late-stage·Devens, Massachusetts
▼ 7Peak #30 · 10 wks
38
Browser IDE and AI app builder
Dev Tools·Late-stage·Foster City, California
▲ 38Peak #38 · 15 wks
39
AI voice generation and audio tools
Consumer·Late-stage·London, England
▼ 28Peak #11 · 9 wks
41
Thermal batteries storing energy for industrial heat
Climate & Energy·Series B·San Jose, California
▲ 46Peak #41 · 22 wks
42
Serverless GPU compute for AI workloads
Dev Tools·Series B·New York, New York
▲ 50Peak #42 · 19 wks
43
AI avatar video generation for businesses
Consumer·Late-stage·London, England
▼ 15Peak #24 · 13 wks
44
Data-activation and agentic marketing platform
SaaS / B2B·Series C·San Francisco, California
▲ 55Peak #42 · 12 wks
45
Secure container images and supply-chain security
Dev Tools·Series D·Kirkland, Washington
▲ 43Peak #41 · 5 wks
46
AI customer-support agents for enterprises
AI·Series C·San Francisco, California
▼ 1Peak #40 · 4 wks
47
Live-shopping marketplace for collectibles and resale
Consumer·Late-stage·Marina del Rey, California
▼ 18Peak #15 · 13 wks
48
Frontend cloud and deployment platform
Dev Tools·Late-stage·San Francisco, California
▼ 35Peak #13 · 17 wks
49
AI-powered conversational answer engine
Consumer·Late-stage·San Francisco, California
▼ 43Peak #6 · 16 wks
51
AI super-agent for research and tasks
Consumer·Series B·Palo Alto, California
▲ 47Peak #50 · 11 wks
52
Consumer privacy app generating disposable identities
Cybersecurity·Series B·New York, New York
▲ 1Peak #49 · 9 wks
53
AI coding agent and IDE for developers
Dev Tools·Late-stage·Mountain View, California
▲ 14Peak #53 · 24 wks
54
Enterprise compliance and process-automation software
SaaS / B2B·Series C·Mannheim, Baden-Wuerttemberg
▼ 3Peak #51 · 18 wks
55
Enterprise AI search and work assistant
SaaS / B2B·Series F·Palo Alto, California
▼ 29Peak #26 · 11 wks
56
AI medical knowledge assistant for physicians
Healthtech·Series D·Miami, Florida
▼ 7Peak #48 · 10 wks
57
Safety-focused generative AI healthcare phone agents
Healthtech·Series C·Palo Alto, California
▲ 43Peak #57 · 24 wks
58
Governance platform for non-human identities
Cybersecurity·Series B·New York, New York
▲ 52Peak #58 · 23 wks
59
Low-carbon cement replacement for concrete
Climate & Energy·Series B·Golden, Colorado
▲ 20Peak #59 · 16 wks
61
Modular nuclear microreactors for data centers
Climate & Energy·Series B·Dickinson, Texas
▼ 9Peak #52 · 5 wks
62
Subscription newsletter and creator publishing
Consumer·Late-stage·San Francisco, California
▼ 19Peak #40 · 4 wks
63
Direct air capture using limestone mineralization
Climate & Energy·Series B·San Francisco, California
▲ 28Peak #56 · 1 wk
64
AI for autonomous scientific labs
Healthtech·Series A·Cambridge, Massachusetts
▲ 56Peak #63 · 14 wks
65
Rewards and loyalty on rent and housing payments
Fintech·Late-stage·New York, New York
▼ 2Peak #52 · 3 wks
66
AI-powered virtual physical therapy and pain care
Healthtech·Series E·New York, New York
▼ 20Peak #27 · 2 wks
67
Ultra-fast voice AI on state-space models
AI·Series B·San Francisco, California
▼ 19Peak #48 · 1 wk
68
AI meeting notetaker and team context tool
Consumer·Series C·London
▼ 8Peak #51 · 19 wks
69
Agentic AI security operations for SOC teams
Cybersecurity·Series A·Boston, Massachusetts
▲ 54Peak #68 · 14 wks
70
ClayEditors' Choice
GTM data enrichment and sales automation platform
SaaS / B2B·Series B·New York, New York
Clay
SaaS / B2B
Every growth team suddenly runs on Clay. Its spreadsheet-meets-AI approach to finding and enriching leads turned a niche tool into a category.
Read feature →
▼ 47Peak #23 · 10 wks
Category collection

Top 20 in Climate & Energy

Energy, grid & the planet.

See the cut
71
Identity verification and fraud-prevention platform
Cybersecurity·Series D·San Francisco, California
▲ 2Peak #70 · 6 wks
72
AI video generator for social marketers
Consumer·Series A·San Francisco, California
▲ 53Peak #72 · 23 wks
73
Ambient AI documentation and medical coding
Healthtech·Series C·San Francisco, California
▲ 30Peak #72 · 13 wks
74
100-hour iron-air long-duration grid batteries
Climate & Energy·Late-stage·Somerville, Massachusetts
▲ 15Peak #71 · 3 wks
75
Securing and governing enterprise AI agents
Cybersecurity·Series A·London, England
▲ 34Peak #74 · 24 wks
76
AI doctor app for instant consults
Healthtech·Series B·New York, New York
▼ 12Peak #54 · 22 wks
77
WireGuard-based zero-trust mesh VPN networking
Cybersecurity·Series C·Toronto, Ontario
▼ 30Peak #47 · 19 wks
78
Smart bin turning food scraps into feed
Climate & Energy·Late-stage·San Bruno, California
▲ 7Peak #59 · 19 wks
79
Agentic AI for autonomous alert triage
Cybersecurity·Series A·Menlo Park, California
▲ 54Peak #78 · 19 wks
81
AI-native, flexible CRM for modern teams
SaaS / B2B·Series B·London, England
▲ 23Peak #81 · 23 wks
82
Collaborative AI-powered data analytics notebooks
Dev Tools·Series C·San Francisco, California
▼ 13Peak #64 · 13 wks
83
AI automating patient referrals and intake
Healthtech·Series C·New York, New York
▼ 5Peak #78 · 10 wks
84
Wholesale marketplace connecting retailers with brands
Consumer·Late-stage·San Francisco, California
▼ 66Peak #8 · 9 wks
85
AI revenue recognition and billing automation
Fintech·Series B·New York, New York
▼ 8Peak #55 · 9 wks
86
Drop-in authentication and user management
Cybersecurity·Seed·Los Altos, California
▲ 38Peak #86 · 25 wks
87
AI presentation maker challenging PowerPoint
SaaS / B2B·Series B·San Francisco, California
▼ 45Peak #41 · 24 wks
88
Stablecoin card-issuing and payments infrastructure
Fintech·Series C·New York, New York
▼ 23Peak #65 · 22 wks
89
Automated sales-tax compliance for online businesses
Fintech·Series A·San Francisco, California
▲ 37Peak #85 · 19 wks
91
Data pipeline platform for observability and security
SaaS / B2B·Late-stage·San Francisco, California
▼ 77Peak #14 · 7 wks
92
Resale marketplace for sneakers, apparel, collectibles
Consumer·Late-stage·Detroit, Michigan
▼ 59Peak #33 · 1 wk
93
AI-native medical billing denial management
Healthtech·Series A·New York, New York
▲ 34Peak #93 · 19 wks
94
Converts captured CO2 into jet fuel
Climate & Energy·Series C·San Francisco, California
▼ 32Peak #50 · 15 wks
95
Low-carbon cement via electrochemical production
Climate & Energy·Series B·Somerville, Massachusetts
▼ 38Peak #57 · 1 wk
96
AI-powered B2B customer support platform
SaaS / B2B·Series B·San Francisco, California
▼ 40Peak #56 · 16 wks
97
AI social network inside iMessage
Consumer·Seed·Carteret, New Jersey
▲ 39Peak #95 · 1 wk
98
Enterprise AI agents for customer support
SaaS / B2B·Series B·Boston, Massachusetts
▼ 27Peak #71 · 6 wks
99
High-performance open-source AI code editor
Dev Tools·Series B·Evesham Township, New Jersey
▲ 9Peak #80 · 22 wks
100 companies on The Built 100