G2
Software reviews and category grids that buyers use to shortlist business tools before a purchase.
G2 is a reviews & directory portal — what that shape means · how this data is collected
| Operator | G2.com, Inc. |
|---|---|
| Portal type | Reviews & directory |
| Industry | B2B sourcing |
| URL | https://www.g2.com/ |
Source: https://legal.g2.com/terms-of-use · Last verified: 2026-09-18
Monthly visits: 2.2M (2243457 visits, Sep 2026) · Source: https://docs.dataforseo.com/v3/dataforseo_labs/google/domain_rank_overview/live/ · Last verified: 2026-09-19
About the B2B sourcing market
Industrial supplier and part sourcing. The oldest B2B directory market in the US, still measured in real volume.
Measured demand
Google Ads, United States, 2026-09-01- Head keyword
- industrial suppliers
- Searches / month
- 74,000
- Cost per click
- $7.64
- Advertiser competition
- 58/100
Opening score 51/100 — high click value against thin advertiser competition.
Other b2b sourcing portals (29)
- Thomasnet (Procurement)
The century-old US industrial supplier directory, now the sourcing front end for Xometry.
- Grainger (Procurement)
Industrial MRO distribution whose catalogue functions as a de facto parts reference.
- McMaster-Carr (Procurement)
The reference catalogue for mechanical components; engineers search it instead of Google.
- Xometry (Marketplace)
On-demand manufacturing marketplace that quotes CNC, sheet metal and injection moulding from uploaded CAD.
- Octopart (Procurement)
Electronic component search across distributor stock and pricing in real time — searching electronic component invent...
- Yellow Pages (Reviews & directory)
The original US local business directory — search by trade and city across millions of listings.
- Manta (Reviews & directory)
Small-business directory and profile host that has been compiling company listings for over two decades.
- Better Business Bureau (Reviews & directory)
Accreditation profiles with ratings, complaint histories and scam reports for businesses across the US and Canada.
- Crunchbase (Reviews & directory)
The reference directory of private companies — funding, leadership and acquisitions used for deal and vendor research.
- GoodFirms (Reviews & directory)
B2B research and ratings platform listing 32,000+ software products and IT companies by service and city.
- Product Hunt (Reviews & directory)
Daily curation of new products where makers launch and buyers browse by category.
- Zazzle (Marketplace)
- Aeroxchange (Marketplace)
Neutral purchasing portal for the aviation industry connecting buyers of aviation parts with suppliers.
- BookFinder.com (Marketplace)
Vertical search website helping readers find and buy new, used, rare, out-of-print books and textbooks online.
- Science Exchange (Marketplace)
Cloud-based R&D marketplace connecting researchers with scientific service providers for experiments and lab services.
- Capterra (Reviews & directory)
Software review and discovery marketplace where buyers research and compare business software vendors.
- Open Hub (Reviews & directory)
Open-source software directory and community platform indexing projects, contributors, and code repositories.
- Scientist.com (Marketplace)
Network of public research organizations and scientists for outsourced research services.
- Tradegood (Marketplace)
Global B2B sourcing platform linking buyers with vetted suppliers.
- Quartzy (Marketplace)
Online lab management and scientific research supply ordering platform.
- Tradewheel (Marketplace)
Global B2B wholesale marketplace connecting US buyers with verified suppliers across thousands of product categories.
- Alibaba (Marketplace)
Global B2B marketplace for wholesale trade connecting US businesses with manufacturers and suppliers worldwide.
- TradeB2B (Marketplace)
B2B wholesale trade marketplace offering global product sourcing listings to US buyers.
- Wholesale Central (Marketplace)
Free wholesale directory listing US suppliers, dropshippers and manufacturers by product category.
- SaleHoo (Marketplace)
Membership-based wholesale directory of vetted suppliers and dropshippers serving US retailers and ecommerce sellers.
- Kompass (Reviews & directory)
Business-to-business company directory with US supplier data, catalogs and procurement leads.
- Amazon Business (Marketplace)
Amazon's B2B marketplace for US businesses to buy wholesale supplies, bulk quantities and business-only pricing.
- Global Sources (Marketplace)
B2B sourcing marketplace connecting US buyers with suppliers and manufacturers across Asia and worldwide.
- TopTenWholesale (Reviews & directory)
Wholesale directory and review site listing US suppliers, dropshippers and wholesale product suppliers by category.