If by “sector maps” you mean a database where you can go from sector → subsector → company universe → funding/M&A/financials and build presentation-ready market landscapes, my shortlist is:
For a professional sector map / investment landscape, I'd start with PitchBook. Its Market Maps can be generated from Advanced Search results, customized by your own segmentation, and plotted against metrics such as capital raised or valuation. It also has 90+ analyst-created emerging-tech maps.
But CB Insights may be better for “market landscape” specifically
If what you want is more like “Who are all the players in this emerging sector, grouped into categories?”, CB Insights is arguably the cleaner product. Its Market Map Maker explicitly categorizes company logos by market segment and lets you create custom landscapes.
Deep industry research + earnings + expert calls + broker research:AlphaSense — particularly compelling now that Tegus expert transcripts are integrated.
Cheap(er) startup universe building: Crunchbase
If you tell me the sector you're mapping (e.g. AI infrastructure, industrial automation, healthcare services, defense tech), I can give you the best database + exact workflow for producing the sector map, including which taxonomy I'd use.
When it comes to building and visualizing sector maps and competitive landscapes , the "best" database depends entirely on whether you are tracking venture-backed tech/startups, public enterprise markets, or emerging global niches.
The top-tier market intelligence databases tailored for industry taxonomies and sector mapping include:
PitchBook : The gold standard for institutional private market mapping. It features native, pre-built Market Maps and Sector Taxonomies that visually categorize VC/PE-backed companies by sub-sector, business model, and competitive positioning (heavy focus on tech, AI, climate tech, healthcare, and fintech). Best for deep funding data, investor networks, and clean vertical categorizations.
Tracxn : An exceptionally structured database specifically renowned for its granular sector taxonomy. It tracks emerging tech and global enterprise sectors across thousands of precise "themes" and sub-segments. If your goal is a hyper-detailed breakdown of a niche ecosystem with minimal manual cleanup, Tracxn’s taxonomy maps out categories better than almost anyone.
Dealroom : Excellent for global and European-centric tech ecosystems alongside deep tech and emerging sectors. Dealroom provides robust interactive filtering, growth signals, and visual sector views that make cutting across different startup stages and geographies seamless.
Crunchbase : The go-to starting point for high-level, accessible ecosystem overviews. While less institutional than PitchBook, its vast tagging system, category tags, and AI-driven growth indicators allow you to quickly draft a high-level market map of private companies and emerging category disruptors.
CB Insights : Best known for its tech-market research, hype cycles, and thematic industry reports. It excels at conceptual sector mapping (e.g., mapping out "who is doing what" in generative AI, supply chain tech, or digital health) through a blend of expert briefs and automated data profiles.
AlphaSense : The leader if your sector mapping relies heavily on public markets, earnings call transcripts, broker research, and regulatory filings. Its smart search allows you to extract companies active in specific thematic value chains straight from unstructured expert commentary.
To help narrow down the right platform for you, let me know:
Are you mapping early-stage startups/VC-backed tech or public/established enterprises?
Do you need an automated visualization tool built into the platform, or just raw enriched data to export into your own mapping software?