AEO for sustainability consulting firms: AI search visibility ranking
How AI search engines rank sustainability consulting firms by visibility and citations. 20 brands measured quarterly across Google AI Mode: which brands the AI names in answers, which domains it cites as sources, and how the leaders compare. Sustainability consulting firms helping businesses with ESG strategy, carbon reduction, reporting, supply chain programs, and environmental transition planning. Composite score: 70% visibility (% of AI answers naming the brand) + 30% citation rate (% citing the brand's domain). Full methodology →
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When buyers inquire about Sustainability consulting firms, AI engines frequently recommend EY, which emerges as the leader with a 75.0% visibility rate. Other notable mentions include ERM and Deloitte. These brands are recognized for their comprehensive services and industry reputation, making them common choices for organizations looking to improve their sustainability practices.
The current rankings are influenced by the aggregation of citations from top sources like onestopesg.com, sustainabilitymag.com, and fortunebusinessinsights.com. These platforms are frequently referenced, indicating that they either provide a wealth of information or host reviews and insights that AI engines consider valuable when evaluating the market presence and credibility of these consulting firms.
For buyers, this means paying attention to which firms are consistently highlighted by AI engines can offer a sense of their reputability and expertise. A practical step would be to consider firms that not only have recent positive reviews but also demonstrate authority in the specific subcategories of sustainability that matter most to your organization.
At a glance
What we observed in this category
EY dominates this category with a 75% visibility score, more than double the next closest brands ERM and Deloitte, both sitting at 37.5%. The category average is just 13.1%, making EY's lead substantial rather than marginal. However, EY has actually fallen from 87.5% in the previous period, a drop of 12.5 percentage points, which signals the gap is narrowing even if it remains the clearest frontrunner in the set.
Citation behaviour reveals a significant divergence from visibility across this category. The average citation rate is just 1.9%, and only two brands in the top ten earn any citations at all: WSP at 12.5% and KPMG at 12.5%. EY, ERM, and Deloitte each hold zero citation share despite high visibility scores, meaning Google AI Mode names these brands frequently but does not anchor responses with links back to their own domains.
The top cited sources in this category are almost entirely third-party directories and aggregator sites, including onestopesg.com, consultancy.org, sustainabilitymag.com, and reddit.com. None of the top cited sources are brand-owned domains. This pattern indicates Google AI Mode is synthesising category knowledge from independent editorial and community sources rather than pulling from the consulting firms' own websites, which helps explain why even highly visible brands carry zero citation share.
Movers & shakers since last refresh
Biggest visibility risers
-
Deloitte 12% → 38% · rank #5 → #3+25pp
-
WSP 12% → 25% · rank #3 → #4+12pp
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Anthesis 12% → 25% · rank #4 → #5+12pp
Biggest visibility fallers
-
EY 88% → 75% · rank #1 → #1-12pp
The AEO ranking
| # | Brand | Visibility | Citation | Top engine |
|---|---|---|---|---|
| 1 |
ey.com
|
75% | 0% | Google AI Mode |
EY's 75% visibility is 5.7 times the 13.1% category average, yet its 0% citation rate means it earns no direct link equity from AI responses despite leading by a wide margin. |
||||
| 2 |
erm.com
|
38% | 0% | Google AI Mode |
ERM ties Deloitte at 37.5% visibility and a 26.2 composite score, but like Deloitte carries zero citations, placing both firms in a named-but-not-sourced cluster well behind EY. |
||||
| 3 |
deloitte.com
|
38% | 0% | Google AI Mode |
Deloitte is the category's biggest riser, jumping from 12.5% to 37.5% visibility this period, yet its citation rate remained at 0%, so increased naming has not translated into sourcing. |
||||
| 4 |
wsp.com
|
25% | 12% | Google AI Mode |
WSP is one of only two top-ten brands earning any citation share at 12.5%, making it the only firm in the top four where AI responses actually link back to its domain. |
||||
| 5 |
anthesisgroup.com
|
25% | 0% | Google AI Mode |
Anthesis holds 25% visibility against the 13.1% average but records 0% citations, suggesting Google AI Mode names it as a specialist option without treating its own content as a sourcing authority. |
||||
| 6 |
kpmg.com
|
12% | 12% | Google AI Mode |
| 7 |
accenture.com
|
12% | 0% | Google AI Mode |
| 8 |
bsr.org
|
12% | 0% | Google AI Mode |
| 9 |
southpole.com
|
12% | 0% | Google AI Mode |
| 10 |
pwc.com
|
12% | 0% | Google AI Mode |
| 11 |
jacobs.com
|
0% | 12% | Google AI Mode |
| 12 |
engieimpact.com
|
0% | 0% | Google AI Mode |
| 13 |
aecom.com
|
0% | 0% | Google AI Mode |
| 14 |
arup.com
|
0% | 0% | Google AI Mode |
| 15 |
ramboll.com
|
0% | 0% | Google AI Mode |
| 16 |
stantec.com
|
0% | 0% | Google AI Mode |
| 17 |
tetratech.com
|
0% | 0% | Google AI Mode |
| 18 |
slrconsulting.com
|
0% | 0% | Google AI Mode |
| 19 |
eco-act.com
|
0% | 0% | Google AI Mode |
| 20 |
capgemini.com
|
0% | 0% | Google AI Mode |
Sources AI engines trust in this category
Across the 8 buyer-intent queries we ran on sustainability consulting firms, these are the domains Google AI Mode cited most often. If you're not on this list — or if your competitors are — that's a concrete PR / linkbuilding target.
How to read this AEO ranking
Four things worth knowing before you act on the numbers above. These are the same definitions across every industry page — for category-specific observations, see the What we observed section above (where available) and the per-brand insights inline in the ranking.
Visibility = being named
A brand's visibility % is the share of AI answers that mention it by name in the response prose. This is who AI engines actively recommend to the buyer. More on visibility →
Citation rate = being trusted
Citation rate is the share of AI answers that include the brand's domain as a clickable source link. This is what the AI treats as authoritative evidence, different from being named. More on citation rate →
Top engine differs by brand
The "top engine" column shows which AI surface each brand performs best on. Big gaps between a brand's score across engines usually points to specific content or schema gaps. How AI engines pick sources →
AEO rankings move month to month
AI engines re-crawl and re-rank on shorter cycles than classical search. We re-audit every brand on this list at least every 90 days and refresh this page automatically. How AI search ranking works →
Run an AEO audit on your own sustainability consulting firms brand
The brands above were curated from public market-leader lists. Want the same answer engine optimisation measurement against your own brand — including the queries you appear on, which competitors get named instead, and a prioritised fix list? Run a free preview.
Frequently asked about AEO for sustainability consulting firms
Who leads AI visibility in sustainability consulting firms?
EY leads with 75% visibility, more than double ERM and Deloitte at 37.5% each. The category average is 13.1%, so EY's lead is substantial across the 20-brand set.
Which sustainability consulting brands are actually cited by Google AI Mode?
Only WSP and KPMG earn citations, both at 12.5%. The remaining top-ten brands, including EY, ERM, and Deloitte, all carry 0% citation rates despite appearing frequently in AI responses.
What sources does Google AI Mode anchor on for sustainability consulting queries?
The top cited sources are third-party sites including onestopesg.com, reddit.com, sustainabilitymag.com, and consultancy.org. No brand-owned consulting firm domains appear in the top cited source list.
Which brand has improved its AI visibility the most recently?
Deloitte is the biggest riser, growing from 12.5% to 37.5% visibility, a 25 percentage point increase. Its citation rate remained at 0% despite that gain.
Is there a brand whose AI visibility is declining despite holding the top rank?
EY fell from 87.5% to 75% visibility, a drop of 12.5 percentage points, while retaining rank 1. It is currently the only brand in the data recorded as a significant visibility faller.
How does citation rate compare to visibility rate across this category?
The average visibility rate is 13.1% but the average citation rate is just 1.9%, meaning brands are named in AI responses far more often than they are linked to, with only 2 of the top 10 brands earning any citations at all.