Google Integrates Local Listings into Supplier and Aggregator Search Units

Last updated September 18, 2026. Google has fundamentally altered the landscape of B2B discovery by integrating local entities into previously separate search modules. We have observed that the search giant recently updated its technical documentation to explicitly include local businesses within its 'aggregator' and 'supplier' search units, a move that signals a transition toward a more integrated, local-first search experience for professional services and industrial procurement.

Previously, these specific search units were largely the domain of massive directories and global manufacturing platforms. By weaving local business listings into these modules, Google is blurring the lines between traditional Local Pack discovery and broader commercial search units. For a 12-location HVAC operator or a specialized dental practice in Leeds, this means visibility is no longer restricted to the 'map'—it now extends into high-intent B2B units that were once occupied only by national aggregators.

What are supplier and aggregator search units?

Supplier and aggregator units are distinct SERP features designed to help users find specialized providers or collections of services. An aggregator unit typically lists sites like Yelp, Houzz, or professional directories that offer a curated list of vendors. The supplier unit, by contrast, is often triggered by industrial or wholesale queries (e.g., "ISO-certified rubber molding" or "commercial HVAC suppliers").

Until this update, these units acted as gatekeepers, often pushing individual local business websites further down the page in favor of large-scale platforms. The inclusion of "local businesses" within these units—as detailed by Barry Schwartz at Search Engine Roundtable—suggests that Google’s ranking algorithms now view a verified Google Business Profile (GBP) as a viable alternative to a third-party directory listing.

Why is Google shifting toward 'Local-First' B2B discovery?

We believe this represents a strategic effort to shorten the user journey. Instead of forcing a searcher to click into an aggregator site and then find a local provider, Google is surfaced the provider directly within the aggregator module. This mimics the platform’s behavior in other verticals, such as Google Travel and Google Hotels, where the intermediary is slowly being bypassed in favor of direct merchant data.

For local operators, this is a double-edged sword. While it increases the surface area for discovery, it also heightens the competition between a local business and the directories that formerly listed them. A dental practice in Leeds may now find its individual GBP competing for space inside an 'aggregator' unit alongside a major UK dental directory.

How can businesses optimize for Google local business search units?

To trigger these specific units, businesses must move beyond basic NAP (Name, Address, Phone) data. Google relies on structured attributes to determine if a local business qualifies as a 'supplier' or fits into a specific 'aggregator' category. For example, a 12-location HVAC operator must ensure that 'Wholesale' or 'Commercial' service attributes are explicitly checked in the GBP dashboard.

Furthermore, the content on the linked landing page must align with the 'supplier' intent. This involves using clear technical specifications, lead-time information, and service area definitions that Google’s crawlers can associate with the search units. Unlike the standard Local Pack, which prioritizes proximity, these units appear to place a higher weight on category relevance and authoritative attributes.

What this means for local businesses

1. Audit Business Categories: Ensure your primary and secondary categories accurately reflect your role as a supplier or service provider. A local fabricator should ensure they aren't just listed as a 'shop' but as a 'manufacturer' or 'supplier' where applicable.
2. Optimize for Aggregator Intent: Since Google is placing local businesses alongside directories, your profile must look as authoritative as a directory listing. This means maintaining a high volume of recent, high-quality reviews and a fully completed 'Services' menu.
3. Structured Data Implementation: Use LocalBusiness and Organization schema on your website to reinforce your status. If you act as a supplier, ensure your 'offers' or 'areaServed' schema properties are robust.
4. Monitor Unit Performance: Use Google Search Console to track if your traffic is coming from these new modules rather than standard web results or the traditional Local Pack.