CoStar vs Zeffy

Side-by-side comparison of AI visibility scores, market position, and capabilities

CoStar leads in AI visibility (90 vs 26)

CoStar

LeaderReal Estate & Property Tech

Data & Analytics

$2.74B revenue 2024 (+11% YoY); $732M Q1 2025 revenue (+12% YoY); 56th consecutive quarter double-digit growth; 134M+ monthly unique visitors Q4 2024; 6,400+ employees in 14 countries

AI VisibilityBeta
Overall Score
A90
Category Rank
#1 of 2
AI Consensus
57%
Trend
stable
Per Platform
ChatGPT
81
Perplexity
92
Gemini
85

About

CoStar is the leading provider of commercial real estate data, analytics, and online marketplaces, offering comprehensive property information, market research, and listing platforms for CRE professionals. The company serves brokers, investors, lenders, appraisers, and property managers seeking authoritative market intelligence and transaction tools to make informed real estate decisions. CoStar delivers value through its extensive proprietary database covering millions of commercial properties, detailed market analytics, and integrated platforms like CoStar Suite, LoopNet, and Apartments.com that connect buyers, sellers, and tenants.

Full profile

Zeffy

EmergingNonprofit Tech

Zero-Fee Fundraising

Montreal zero-fee nonprofit fundraising platform with $1B+ processed; 100% donation pass-through via optional donor tips competing with Donorbox and Classy for nonprofit fundraising technology adoption.

AI VisibilityBeta
Overall Score
D26
Category Rank
#1 of 1
AI Consensus
68%
Trend
stable
Per Platform
ChatGPT
19
Perplexity
26
Gemini
17

About

Zeffy is a Montreal-based fundraising platform for nonprofit organizations that charges zero platform fees on donations — asking donors to optionally contribute a tip to cover Zeffy's operating costs rather than deducting fees from each donation, ensuring 100% of every donated dollar reaches the nonprofit cause. Founded in 2019 by Thibaut Davoult and Nicolas Lafleur, Zeffy has processed $1+ billion in nonprofit donations and provides a comprehensive suite including online donation forms, event ticketing, peer-to-peer fundraising campaigns, recurring donation management, and membership management — giving nonprofits a full fundraising platform at genuinely zero cost.

Full profile

AI Visibility Head-to-Head

90
Overall Score
26
#1
Category Rank
#1
57
AI Consensus
68
stable
Trend
stable
81
ChatGPT
19
92
Perplexity
26
85
Gemini
17
99
Claude
29
85
Grok
18

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