How Strategic SEO Supported Growth Across 20+ Offices and 40+ Countries
When a global construction consultancy with 20+ U.S. offices and projects in over 40 countries needs to be found online, the stakes are different. Every city is a market. Every office needs visibility. And every search a potential client runs is a chance to win or lose business. This is how we turned one consolidated website into the company’s most reliable source of new leads across all of them.
Company
Overview
This client is one of the leading construction consultancy firms in the United States, with offices in more than 20 states and active projects in over 40 countries. Our relationship began with a smaller San Diego-based consultancy whose digital marketing we managed, helping them stay visible to local clients and generate a consistent pipeline of inbound leads. After the merger, the new leadership chose to keep us on as their digital partner, asking us to oversee the domain consolidation and provide ongoing SEO and broader digital strategy to bring those same results to a company ten times the size.
The Challenge
After the merger, the new organization needed a digital strategy that matched its scale. Multiple offices and a broader international footprint had to be reflected in a single web presence without losing momentum in search. At the same time, leadership was highly focused on growing overall traffic and engagement and making sure that visibility translated into actual leads and revenue, which meant consolidating domains and then building sustainable organic growth in key U.S. cities and global markets. Put simply, a firm with a global reputation needed its online presence to start pulling its weight.
The strategy
We treated this as an enterprise SEO and authority-building project, focused on making one consolidated site work harder across many locations and markets. Our role was to guide the domain migration, strengthening the technical and authority foundation and making sure key cities and service areas were properly represented so the right clients could find the firm when they were actively searching for help.
- Guided the migration from the smaller consultancy’s domain into the parent company’s site, ensuring no leads or search visibility were lost during the transition
- Audited the new site’s structure and on-page SEO to align with the terms and phrases potential clients are actually typing into Google
- Planned and launched city-focused pages for priority markets such as Los Angeles, Boston, San Diego, and New York to capture local and “near me” searches
- Implemented a sustained, quality-focused link building program to better match the firm’s real-world authority with its backlink profile
- Advised on content structure so service pages, case studies, and thought-leadership pieces worked together to guide visitors toward making contact rather than competing
- Monitored organic rankings, traffic, and engagement in tools like GA4 and Ahrefs to identify which pages were driving the most valuable leads
- Pivoted toward stronger local visibility by refreshing and expanding Google Business Profile listings for key U.S. offices
- Continued to refine targeting and internal linking as the firm’s footprint and focus evolved across states and international markets
Results
Over time, the combined strategy turned organic search into the client’s dominant acquisition channel. Rankings for priority U.S. cities such as Los Angeles, Boston, San Diego, and New York moved into far stronger positions, with many high-value consultancy terms now appearing on page one and in the top group of results. Ahrefs shows a clear lift in authority, with Domain Rating in the low 50s, 1.1K+ referring domains, and an upward trend in estimated organic traffic and AI citations across tools like Google AI Overview and ChatGPT. In a focused campaign window, this translated into 134,000+ organic visitors and 100,000+ direct visitors, reflecting both stronger discovery and more people seeking the brand out by name.
GA4 data backs this up: out of more than 1.3 million sessions in the reporting period, roughly 925,000 came from organic search, accounting for around 68% of all traffic and the majority of key events. Organic users viewed more pages and generated most of the meaningful engagement, confirming that the growth is tied to high-intent visitors actively looking for services, not vanity traffic. Those visitors supported seven-figure client acquisitions and new government contracts, while the improved visibility lowered future acquisition costs (CAC). For a firm of this size, that shift from paid lead generation to organic inbound represents significant long-term savings.
Traffic and engagement growth
GA4 shows that organic search has become the clear workhorse channel for this site, delivering just over 925,000 sessions out of roughly 1.3 million total in the measured period, nearly 70% of all traffic. Compared with other channels, organic visitors consistently showed stronger engagement, confirming that the growth in search isn’t just bigger numbers on a dashboard. These are people who are ready to pick up the phone and have a real conversation about working together.
Performance at a glance
Key metrics after the consolidation and enterprise SEO work:
- 134k+ organic visitors and 100k+ direct visitors during the focused campaign window
- 925k+ sessions from organic search in GA4
- Almost 70% of total site traffic attributed to organic search
- DR at 51 with 1.1K+ referring domains backing domain authority, meaning the site carries real authority in the eyes of search engines
- Multi-year upward trend in organic traffic and ranking keywords
- Search and brand visibility contributing to 7-figure client acquisitions and new government contracts
- Growing volume of AI citations in tools like Google AI Overviews and ChatGPT, keeping the firm visible as search evolves
- Increased lifetime value (LTV)
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Key takeaways
925k+
organic sessions in GA4
134k+
organic visitors in the core campaign window
69%+
of total traffic from organic search
1.1K+
referring domains supporting authority
20+
U.S. offices supported under one SEO framework
Conclusion
This case shows how a large construction consultancy can use strategic enterprise-level SEO to turn a complex multi-office web presence into a dependable growth channel. By strengthening the authority profile and gradually improving local signals via GBP, organic search grew into the primary driver of traffic and engagement. The combination of strong organic share and healthier authority metrics indicates a durable foundation that can deliver leads, lower acquisition costs, and support revenue growth as the company expands across new offices, markets, and service lines.
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