Rivet vs Zelis
Two Payment Integrity & Underpayments vendors, side by side. Facts from public sources; judgments are ours.
At a glance
Derived from public facts · a rough scale, not a ranking
| Rivet | Zelis | |
|---|---|---|
| Pricing model | Not published · Quote-based | Per-transaction / per-chart · Fees on provider payments; payer deals custom |
| Speed to go live | Connects to 30+ PM and clearinghouse systems | Provider enrollment quick; payer integrations larger |
| Automation model | Software platform · estimates, underpayments, denials tools | Data / network utility · payments and pricing network, 550+ payers |
| Built for | Small practices, Mid-size groups, Enterprise systems, Billing companies | Payers, Small practices, Mid-size groups, Enterprise systems |
| Security posture | No certifications published | HITRUST, HIPAA, PCI DSS |
| Company maturity | 8 yrs (est. 2018) | 10 yrs (est. 2016) |
| Financial backing | $31.5M · Acquired by Zelis (January 2026) | Private equity owned (Bain Capital, Parthenon Capital) |
| Named customers | None public | None public |
| Published results | No public numbers | Specific numbers public |
| Documented integrations | 3 listed | None documented |
| Third-party validation | None found | None found |
Bottom line
- Pick Rivet if your practice or billing team needs patient estimates, underpayment recovery, and denial tools that plug into your current PM system.
- Pick Zelis if you are a payer modernizing claims pricing and payments, or a provider consolidating electronic payments and remittances from many plans.
Rivet
Estimates, underpayment recovery, and denial workflows
- Founded
- 2018
- HQ
- Salt Lake City, UT
- Stage
- Acquired by Zelis (January 2026)
- Raised
- $31.5M
What it does
- Upfront patient cost estimates and good faith estimates
- Payer contract modeling down to the TIN level
- Automated underpayment detection against contracted rates
- Denial and payment variance dashboards
- Worklists for recovery project management
Where it's strong
- Unusually broad integration surface for its size, with 30+ practice management and clearinghouse connections including Epic and athenahealth.
- It pairs front-end estimates with back-end underpayment recovery, so one contract dataset powers both.
- Zelis ownership brings the resources and payer network of a much larger payments company.
What buyers should weigh
- The January 2026 Zelis acquisition means roadmap, pricing, and support models could change; ask hard questions about product continuity.
- Zelis primarily serves 750+ payers, and some provider organizations will be uneasy having their underpayment data inside a payer-aligned vendor.
- Its history is strongest with physician groups and mid-size practices, less proven as an enterprise hospital platform.
Integrations
Zelis
Claims pricing, payment integrity, and payments for payers
- Founded
- 2016
- HQ
- Boston, MA
- Stage
- Private equity owned (Bain Capital, Parthenon Capital)
- Raised
- n/a
What it does
- Prepayment claims editing and payment integrity reviews
- Out-of-network pricing and network analytics
- Electronic provider payments replacing paper checks
- Member payments and explanation-of-benefits communications
- Claim payment and denial analytics for providers (Rivet)
Where it's strong
- Scale is real: 750+ payers including the top five national plans, so pricing and integrity models draw on enormous claim volume.
- One vendor covers pricing, integrity, and payment rails, which cuts the number of point solutions a plan has to stitch together.
- Well capitalized and acquisitive, with a valuation reported around $17B, so vendor viability risk is low.
What buyers should weigh
- Built for payers first; providers often encounter Zelis as the counterparty taking fees out of their payments rather than as their vendor.
- Its size and PE ownership can mean slower, more contractual engagement than younger vendors offer.
- Pricing and savings-share models deserve close scrutiny since fees often come out of claim savings.
Compare against the rest of Payment Integrity & Underpayments
Deciding between these two?
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