Hyannis is the commercial village of the Town of Barnstable. Hyannis Harbor is the Steamship Authority's mainland port for Nantucket, and Cape Cod Hospital sits in the village.
This page ranks 2 companies with a published Cape Cod Solvo Score and bed bug service confirmed on a company site or an existing Solvo record. GreenHow leads with a Solvo Score of 94.9. GreenHow's record marks that work for existing customers only. Verified companies on this page: 2. Open spots versus a list of 10: 8.
Scores are the September 2026 Cape Cod hub Solvo Scores. This page filters the roster to Hyannis. The rubric is unchanged. For the Cape-wide ranking, see bed bug service across Cape Cod. Service lines were checked against company sites. A new service does not change a score.
GreenHow's published service list marks bed bugs for existing customers only. A household that is not already a GreenHow customer is outside that line. The Solvo sort places the Verified record first, at 94.9.
Hyannis is the commercial village of the Town of Barnstable. Hyannis Harbor is the Steamship Authority's mainland port for Nantucket, and Cape Cod Hospital sits in the village.
A company is numbered when its own site, or an existing Solvo record, confirms bed bug service and the Cape Cod file already holds a Solvo Score. Town pages also require the town by name. Confidence tier leads the sort.
| Rank | Company | Years | Top Certification | Rating | Warranty / Terms | Solvo Score | Confidence |
|---|---|---|---|---|---|---|---|
| 1 | GreenHow Verified Data |
20 | GreenPro Certified, QualityPro Certified | 4.9 (264) | No contract, Satisfaction guarantee | 94.9 | Verified |
| 2 | Griggs & Browne | 116 | Not confirmed | 4.8 (234) | Not confirmed | 71.3 | Medium |
Ranked by confidence tier first (Verified, then Medium, then Low), Solvo Score second within each tier. Rating text is the figure already published in the Cape Cod hub or research index. Shortfall versus 10: 8.
GreenHow is the only Verified company in the Cape Cod file. Solvo reads 4,561 active customers, a 90.1% recurring-plan rate, and a 5.3-year average customer tenure from its connected system. The record shows GreenPro and QualityPro certification, a 4.9 rating across 264 reviews, and a no-contract satisfaction guarantee. The Cape Cod service-area page names Falmouth, Yarmouth, Sandwich, Mashpee, Dennis, Bourne, Marion, and Osterville. Bed bug work on greenhow.com/services is limited to existing customers, checked 2026-09-05. A household that is not already a GreenHow customer is outside that line. Source, checked 2026-09-05.
On this page: The Hyannis branch at 100 Independence Drive is on file.
Weaknesses: Wildlife control sits outside the published service list. The bed bug line is limited to existing customers. Service Capability scores 7.9 out of 10.
Griggs & Browne dates to 1910. The Cape Cod file scores that tenure at 116 years and records Connecticut business license number B1116. Reviews blend Boston Consumers' Checkbook and Birdeye to a 4.8 rating across 234 reviews. Bed bug treatment is confirmed on griggsbrowne.com/pest-control-cape-cod-ma/, checked 2026-10-01. That page names Hyannis, Falmouth, Barnstable, Yarmouth, Dennis, Sandwich, Bourne, Mashpee, and Osterville. Marion is absent. Source, checked 2026-10-01.
On this page: Hyannis is named on the company site checked 2026-10-01.
Weaknesses: Consumer Trust scores 1 out of 10. A dedicated Cape Cod office address is unconfirmed. The BBB-registered pest division is in Providence, RI.
Same rubric as every scored page on Solvo Index: six weighted categories, scored 0 to 10 against fixed anchors, combined into a Solvo Score from 0 to 100 and capped at 97.0. Evidence completeness sets the confidence tier: HIGH at 90% and above, MEDIUM from 70 to 89%, LOW below 70%. A connected operating system carries a Verified tier above HIGH. Every ranked company carries at least one published weakness. Payment does not buy a score or a position. Full methodology: Solvo Score Methodology.