# Identity resolution for small business buyers: what AI models recommend, October 2026

Gane Index, October 2026 Edition. Asked as "identity resolution platform" and as "customer identity matching service", six framings each, to fourteen models with search on, on behalf of a small B2B company. Page: https://www.gane.ai/index/gtm/gtm-data/identity-resolution/2026-10/smb

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/gtm/gtm-data/identity-resolution/smb/index.md

**Standing:** FullContact (tied with HubSpot Breeze Intelligence) leads with 10% of first choices; verdict contested. 59 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [FullContact](https://www.gane.ai/index/gtm/vendors/fullcontact/index.md) | 10% | 16% | 31 |
| 2 | [HubSpot Breeze Intelligence](https://www.gane.ai/index/gtm/vendors/hubspot-breeze-intelligence/index.md) | 10% | 19% | 21 |
| 3 | [Hightouch Adaptive Identity Resolution](https://www.gane.ai/index/gtm/vendors/hightouch-adaptive-identity-resolution/index.md) | 8% | 3% | 33 |
| 4 | [Prospeo](https://www.gane.ai/index/gtm/vendors/prospeo/index.md) | 8% | 0% | 20 |
| 5 | [CustomerLabs 1PD Ops](https://www.gane.ai/index/gtm/vendors/customerlabs-1pd-ops/index.md) | 8% | 0% | 11 |
| 8 | [Twilio Segment Unify](https://www.gane.ai/index/gtm/vendors/twilio-segment-unify/index.md) | 5% | 13% | 30 |
| 26 | [Senzing](https://www.gane.ai/index/gtm/vendors/senzing/index.md) | 0% | 20% | 10 |
| 120 | [ZoomInfo](https://www.gane.ai/index/gtm/vendors/zoominfo/index.md) | 0% | 58% | 12 |
| 122 | [Informatica MDM](https://www.gane.ai/index/gtm/vendors/informatica-mdm/index.md) | 0% | 70% | 10 |
| 123 | [Experian Identity Resolution](https://www.gane.ai/index/gtm/vendors/experian-identity-resolution/index.md) | 0% | 69% | 13 |
| 124 | [Adobe Real-Time CDP](https://www.gane.ai/index/gtm/vendors/adobe-real-time-cdp/index.md) | 0% | 90% | 10 |
| 125 | [mParticle IDSync](https://www.gane.ai/index/gtm/vendors/mparticle-idsync/index.md) | 0% | 92% | 12 |

Rank is by share of first choices among all 129 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: RB2B; alternatives Data Ladder's DataMatch Enterprise, Hightouch Adaptive Identity Resolution, Tilores
- GPT-5.4 mini: FullContact; alternatives AWS Entity Resolution
- Gemini 3.5 Flash: Clay, HubSpot Breeze Intelligence, RB2B; alternatives Apollo.io, LeadAngel, Snitcher
- Perplexity Sonar: AWS Entity Resolution, Dun & Bradstreet Data Cloud; alternatives Hightouch Adaptive Identity Resolution
- Grok 4.20: Prospeo; alternatives CustomerLabs 1PD Ops, Lead Forensics, Oppora
- Mistral Small: FullContact, HubSpot Breeze Intelligence; alternatives Twilio Segment Unify
- DeepSeek V4 Flash: CustomerLabs 1PD Ops Platform, RB2B; alternatives FullContact, Hightouch Adaptive Identity Resolution, Prospeo, Twilio Segment Unify
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: HubSpot Breeze Intelligence; alternatives Clay, Dealfront, Hunter
- Kimi K2: Dealfront, Leadpipe; alternatives Bullseye, Oppora
- GLM 4.7 FlashX: Prospeo; alternatives Hightouch Adaptive Identity Resolution, Leadspace Sidekick, Oppora
- MiniMax M2.5: FullContact, HubSpot Breeze Intelligence; alternatives ZoomInfo
- GPT-6 Luna: HubSpot Breeze Intelligence; alternatives Insycle
- Muse Glimmer 30B: FullContact, Prospeo; alternatives Identity Matrix, Retention.com

## Sources the answers cite

74 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- prospeo.io: 43 answers, 65 citations
- softwaresuggest.com: 36 answers, 36 citations
- scmgalaxy.com: 35 answers, 35 citations
- sourceforge.net: 33 answers, 56 citations
- guideflow.com: 32 answers, 33 citations
- gane.ai/index: 30 answers, 31 citations
- oppora.ai: 29 answers, 29 citations
- g2.com: 24 answers, 41 citations

Pages named in the most answers:

- https://prospeo.io/s/identity-resolution-software (43 answers)
- https://softwaresuggest.com/identity-resolution-software (36 answers)
- https://scmgalaxy.com/tutorials/top-10-identity-resolution-platforms-features-pros-cons-comparison (35 answers)
- https://guideflow.com/blog/identity-resolution-software (32 answers)
- https://gane.ai/index/gtm/gtm-data/identity-resolution/smb (30 answers)
- https://oppora.ai/blog/identity-resolution-software (29 answers)
- https://checkthat.ai/answers/what-are-the-best-identity-resolution-tools (19 answers)
- https://pipelineon.com/blog/identity-resolution-compared (18 answers)
- https://devopsschool.com/blog/top-10-identity-resolution-platforms-features-pros-cons-comparison (17 answers)
- https://redpointglobal.com/blog/best-identity-resolution-platforms (17 answers)

## Warned against

- LiveRamp Identity Resolution: 39 of 44 labels negative. "LiveRamp is typically inaccessible for small businesses. It requires long-term contracts, heavy professional services implementation, and carries a massive premium cost." (Muse Glimmer 30B, negative prompt)
- Amperity: 19 of 21 labels negative. "Why to avoid: Enterprise CDP with pricing that can easily exceed a small business's entire annual marketing budget" (DeepSeek V4 Flash, negative prompt)
- mParticle IDSync: 11 of 12 labels negative. "has a steep setup/learning curve and high support needs, which can escalate total cost of ownership" (Llama 4 Maverick, negative prompt)
- Tealium: 12 of 13 labels negative. "Another enterprise-focused solution that is typically too expensive and complex for small businesses." (Mistral Small, negative prompt)

## Movement since September 2026

Floor: 11 points of share, measured on the calibration repeat.
New leader: Twilio Segment Unify (15%) to Hightouch Adaptive Identity Resolution (10%). Margin 4 points, within noise.

- Twilio Segment Unify: 15% to 6%, −9. Inside the floor by 2 points · rank 1 → 8 of 123.
- Hightouch Adaptive Identity Resolution: 4% to 10%, +6. Inside the floor by 5 points · rank 8 → 1 of 123.
- FullContact: 6% to 10%, +4. Inside the floor by 7 points · rank 6 → 2 of 123.
- HubSpot Breeze Intelligence: 4% to 8%, +4. Inside the floor by 7 points · rank 10 → 5 of 123.
- Leadpipe: 8% to 4%, −4. Inside the floor by 7 points · rank 5 → 9 of 123.
- RudderStack: 6% to 2%, −4. Inside the floor by 7 points · rank 7 → 11 of 123.
- Prospeo: 10% to 8%, −2. Inside the floor by 9 points · rank 3 → 4 of 123.
- CustomerLabs 1PD Ops: 10% to 8%, −2. Inside the floor by 9 points · rank 2 → 6 of 123.
- RB2B: 10% to 8%, −2. Inside the floor by 9 points · rank 4 → 7 of 123.
- Retention.com: 0% to 2%, +2. Inside the floor by 9 points · rank 21 → 24 of 123.
- ZoomInfo: 0% to 0%, ±0. Inside the floor by 11 points · rank 95 → 114 of 123.
- Experian Identity Resolution: 0% to 0%, ±0. Inside the floor by 11 points · rank 97 → 116 of 123.

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, October 2026 Edition, www.gane.ai/index/gtm.