Every category where a model named Zamp for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant
Sales tax automation	Tax and compliance	0%	9 of 38	0%	17	accepted challenger
Corporate tax provision	Tax and compliance	0%	70 of 98	0%	1	under 10 labels · led by Thomson Reuters ONESOURCE Tax Provision at 26%

Movement

This is the first edition on this tier, so no move can be computed for Zamp yet. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated Zamp across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.

Model	Alternative	Mention	Labels
Claude Haiku 4.5	0	1	1
GPT-5.4 mini	0	0	0
Gemini 3.5 Flash	2	0	2
Perplexity Sonar	1	1	2
Grok 4.1 Fast	0	0	0
Mistral Small	0	2	2
DeepSeek V4 Flash	2	0	2
Llama 4 Maverick	1	1	2
Qwen 3.7 Flash	1	0	1
Kimi K2	1	0	1
GLM 4.7 FlashX	3	0	3
MiniMax M2.5	1	1	2

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct12 labels2

Paraphrase16 labels2

Comparative10 labelsNone

Budget-constrained3 labels1

Scale-constrained3 labels1

Negative6 labels1not counted in share

First choiceAlternativeMentionNegative50 labels in all, every segment counted; 6 of the 7 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“offers a managed service approach, which can be helpful for companies that want hands-off tax compliance management” MiniMax M2.5 · Sales tax automation · direct prompt · alternative

“Look for platforms (like Zamp, Numeral, or TaxCloud) that offer human tax experts to verify your data.” Gemini 3.5 Flash · Sales tax automation · negative prompt · alternative

“Fully managed service with exemption certificate management, registrations, filings, audit support” Llama 4 Maverick · Sales tax automation · paraphrase prompt · alternative

“Choose Zamp or CCH SureTax if: your focus is on B2B wholesale/distribution” GLM 4.7 FlashX · Sales tax automation · paraphrase prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

No model argued against it.

Named alongside

The products named in the same answers as Zamp, over the 50 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Zamp was named but was not.

ProductSame answerTook the first choice insteadHead to head

Avalara AvaTax46 of 5018Not in the top three

TaxJar35 of 507Not in the top three

Vertex28 of 504Not in the top three

Anrok24 of 501Not in the top three

TaxCloud18 of 503Not in the top three

Sovos14 of 501Not in the top three

Stripe Tax14 of 500Not in the top three

Taxwire11 of 506Not in the top three

Kintsugi11 of 501Not in the top three

Numeral9 of 500Not in the top three

A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Zamp. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 45 of the 50 answers that named Zamp and are not a share of its labels.

Domains cited

zamp.comYour site40

learn.g2.com32

taxcloud.com30

taxwire.com26

guideflow.com25

galvix.com23

avalara.com21

taxjar.com20

techrepublic.com18

quaderno.io17

212 of the 252 domain citations in answers naming Zamp came from somebody else's page.

Pages cited

learn.g2.com/best-sales-tax-compliance-software32

taxwire.com/blog/best-sales-tax-compliance-software22

galvix.com/article/best-sales-tax-software21

taxcloud.com/blog/sales-tax-compliance-software18

techrepublic.com/article/best-sales-tax-software18

zamp.com/blog/best-sales-tax-automation-software-b2b-wholesalers18

taxjar.com/blog/2026-sales-tax-software-comparison17

zamp.com/blog/best-sales-tax-software-and-how-to-choose16

Pages are listed as the models cited them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Zamp's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Zamp, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at zamp.com is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.