ValueBase builds AI-powered assessor intelligence tools for county tax assessors and state revenue departments. Its platform uses land-first models and enriched data, including aerial photography and 50+ automated property features, to produce defensible mass-appraisal valuations, ratio studies, neighborhood delineations, and appeal responses. Products include ValPal (an AI assistant analyzing appraisal documents for USPAP compliance), RatioPal (automated ratio study generation), and AgePal (standardized effective-age calculations). ValueBase says it serves 36 jurisdictions. Founded in 2022 and originally based in Durham, NC (now Austin, TX), it has raised about $8.15M total, beginning with a $1.6M seed led by Hydrazine Capital (Sam Altman's fund) with angels including Nat Friedman, Sahil Lavingia, and Erik Torenberg.
ValueBase
ActiveAI assessor intelligence for property tax valuation and appraisal
Total raised
$1.6M
1 round
Stage
Seed
Feb 2023
Team
11-50
since 2022
Pricing
Freemium
free plan
Founded
2022
Austin, United States
Agent-ready
—
AI mass appraisal modeling
ValPal appraisal document analysis
RatioPal automated ratio studies
AgePal effective-age calculations
Automated property feature enrichment
AI-drawn neighborhood delineation
USPAP compliance checks
Appeal and hearing preparation support
10/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Feb 2023 Seed $1.6M incl. Hydrazine Capital +2
Capital network
$8.2M raised ·3 backers·8 network links
- Backers3
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What does ValueBase do?
- It provides AI assessor intelligence tools that automate mass appraisal and property valuation for tax assessors.
- Who uses ValueBase?
- County tax assessors and state revenue departments, with 36 jurisdictions reported as customers.
- Who funded ValueBase?
- Its seed round was led by Sam Altman's Hydrazine Capital, with angels including Nat Friedman and Sahil Lavingia.
- What products does ValueBase offer?
- Tools include ValPal, RatioPal, and AgePal alongside its core valuation platform.
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