Carbon accounting software: AI search visibility ranking (2026)
How AI search engines rank carbon accounting software by visibility and citations. 20 brands measured monthly across Google AI Mode: which brands the AI names in answers, which domains it cites as sources, and how the leaders compare. Carbon accounting software used to measure emissions, model reduction strategies, support climate disclosures, and manage decarbonization programs. Composite score: 70% visibility (% of AI answers naming the brand) + 30% citation rate (% citing the brand's domain). Full methodology →
Refreshed Jun 15, 2026Download this ranking as a PDF
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At a glance
What we observed in this categoryauto-generated
Greenly leads the carbon accounting software category with a composite score of 23.8, while Persefoni sits second at 21.2. The gap matters because Persefoni actually has double the visibility percentage (25.0 vs 12.5), yet Greenly outscores it overall by converting a 50.0 citation rate against Persefoni's 12.5. Ranks 3 through 6 (Watershed, Normative, Plan A, Workiva) all share identical composite scores of 8.8, indicating a hard ceiling in AI recognition below the top two brands.
A clear divergence exists between being named and being trusted as a source. Persefoni appears in 25.0 percent of responses but is cited in only 12.5 percent, suggesting AI mentions it without anchoring content to its domain. Greenly inverts this pattern with lower visibility (12.5 percent) but a citation rate of 50.0 percent, making it the most trusted source in the category. Arbor presents an unusual edge case, earning a 12.5 citation rate despite zero visibility, meaning AI cites its content without naming it as a brand.
Every brand in the top 10 records Google AI Mode as its top engine, confirming the entire category's AI footprint is concentrated on a single platform. The top cited sources include linkedin.com, reddit.com, gartner.com, and greenly.earth itself, alongside niche sites like keyesg.com and climatepartner.com. The presence of Reddit and LinkedIn alongside Gartner suggests AI is pulling from community discussion and professional networks rather than relying on vendor content or traditional analyst coverage alone.
Movers & shakers since last refresh
Biggest visibility risers
-
Persefoni 0% → 25% · rank #0 → #2+25pp
-
Greenly 0% → 12% · rank #0 → #1+12pp
-
Watershed 0% → 12% · rank #0 → #3+12pp
The ranking
| # | Brand | Visibility | Citation | Top engine |
|---|---|---|---|---|
| 1 |
greenly.earth
|
12% | 50% | Google AI Mode |
Greenly holds the top composite score (23.8) and a 50.0 citation rate that is more than four times the category average of 3.8, making it the most trusted cited source in the category. |
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| 2 |
persefoni.com
|
25% | 12% | Google AI Mode |
Persefoni records the highest visibility at 25.0 percent (nearly six times the 4.4 average) but converts only 12.5 percent citations, signalling a notable gap between mentions and sourced trust. |
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| 3 |
watershed.com
|
12% | 0% | Google AI Mode |
Watershed matches the category average visibility at 12.5 percent but earns zero citations, placing it in a three-way tie for third with a composite score of 8.8. |
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| 4 |
normative.io
|
12% | 0% | Google AI Mode |
Normative shares an identical composite score (8.8) and zero citation rate with Watershed and Plan A, offering no differentiation in AI visibility from its two nearest peers. |
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| 5 |
plana.earth
|
12% | 0% | Google AI Mode |
Plan A sits in the same 8.8 composite score cluster as ranks 3 and 4, with 12.5 percent visibility and zero citations, reflecting the hard floor for mid-tier category recognition. |
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| 6 |
workiva.com
|
12% | 0% | Google AI Mode |
| 7 |
arbor.eco
|
0% | 12% | Google AI Mode |
| 8 |
sweep.net
|
0% | 0% | Google AI Mode |
| 9 |
sinai.com
|
0% | 0% | Google AI Mode |
| 10 |
emitwise.com
|
0% | 0% | Google AI Mode |
| 11 |
salesforce.com
|
0% | 0% | Google AI Mode |
| 12 |
ibm.com
|
0% | 0% | Google AI Mode |
| 13 |
sphera.com
|
0% | 0% | Google AI Mode |
| 14 |
optera.io
|
0% | 0% | Google AI Mode |
| 15 |
coolset.com
|
0% | 0% | Google AI Mode |
| 16 |
microsoft.com
|
0% | 0% | Google AI Mode |
| 17 |
sap.com
|
0% | 0% | Google AI Mode |
| 18 |
greenprojecttechnologies.com
|
0% | 0% | Google AI Mode |
| 19 |
cloverly.com
|
0% | 0% | Google AI Mode |
| 20 |
sustain.life
|
0% | 0% | Google AI Mode |
Sources AI engines trust in this category
Across the 8 buyer-intent queries we ran on carbon accounting software, 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 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.
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.
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.
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 30 days and refresh this page automatically.
Get your own carbon accounting software brand audited
The brands above were curated from public market-leader lists. Want the same 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 carbon accounting software AI visibility
Who leads AI visibility in carbon accounting software?
Greenly leads with the highest composite score of 23.8, driven by a 50.0 percent citation rate that far exceeds every other brand in the category. Persefoni ranks second (21.2) on the strength of a 25.0 percent visibility rate.
Which brand has the highest raw visibility in this category?
Persefoni records the highest visibility at 25.0 percent, which is nearly six times the category average of 4.4 percent. However, its citation rate of 12.5 percent is well below Greenly's 50.0 percent.
What sources does AI cite most for carbon accounting software research?
The top cited sources include linkedin.com, reddit.com, climatepartner.com, youtube.com, keyesg.com, greenly.earth, aclymate.com, and gartner.com. Community platforms like Reddit and LinkedIn appear alongside traditional analyst sources such as Gartner.
Which engine dominates AI citations in this category?
Google AI Mode is the top engine for every brand in the top 10, indicating the entire category's AI visibility footprint is currently concentrated on a single platform.
Are there any brands that get cited without being named in AI responses?
Arbor (arbor.eco) records a 12.5 percent citation rate despite zero visibility, meaning AI draws on its content as a source without naming it as a recommended brand.
How fragmented is AI visibility across the 20 brands in this category?
The average visibility is just 4.4 percent and the average citation rate is 3.8 percent, with half of the top 10 brands scoring zero on both metrics, confirming visibility is heavily concentrated at the top.