Assembly Neos vs ProLaw
Assembly Neos scores 7.3/10 vs 6.0/10. Best for: Plaintiff litigation firms that need a case management system designed specifically for the plaintiff workflow — intake, medical records, settlement, disbursement.
Assembly Neos scores higher overall at 7.3/10 vs 6.0/10. Assembly Neos competes with CASEpeer and Filevine for PI firm market share. It's a solid option if those two don't fit your workflow. Request demos from all three before deciding.
Assembly Neos 
ProLaw Rank
#18 of 39
Rank
#37 of 39
Features
17/18
Features
16/18
Starting at
Custom
Starting at
Custom
User reviews
4.1/5 (80)
User reviews
3.5/5 (50)
What they cost
| Assembly Neos | ProLaw | |
|---|---|---|
| Starting at | Contact for pricing | Contact for pricing |
| Free trial | No | No |
| Number of plans | Custom | Custom |
What the pricing really means
Both Assembly Neos and ProLaw use custom pricing, which means you need to talk to sales. In our experience, custom pricing usually means the product is targeting larger operations and the monthly cost will be higher than products with published prices. Ask specifically about total year-one cost, including setup, onboarding, and training.
Where Assembly Neos wins
- Purpose-built for plaintiff firms with medical provider tracking, lien management, and settlement disbursement sheets
- Intake module captures leads from web forms, phone calls, and referral sources with attribution tracking
- Workflow automation can move cases through stages automatically based on triggers and deadlines
- Integrates with medical record retrieval services
Where ProLaw wins
- Backed by Thomson Reuters with direct integration to Westlaw and Practical Law
- Enterprise-grade financial management with LEDES billing, matter budgets, and profitability analysis
- Trust accounting with multi-bank, multi-currency support for large international firms
- Court rule calendaring included
Where Assembly Neos falls short
- No public pricing — custom quotes suggest mid-market pricing
- Only useful for plaintiff-side litigation — defense firms and transactional practices need to look elsewhere
- Fewer reviews and smaller user base than CASEpeer or Filevine
- The Neos brand (formerly known as LawRuler for CRM) can be confusing
Where ProLaw falls short
- G2 rating of 3.5 and Capterra 3.8 indicate significant user frustration with the interface
- No public pricing — likely $200+/user based on the enterprise positioning
- No client portal, no mobile app, no eSignature, no intake forms
- Implementation takes months, not days
Who is each product built for?
Assembly Neos
Target: 5-100 attorneys
Assembly Neos competes with CASEpeer and Filevine for PI firm market share. It's a solid option if those two don't fit your workflow. Request demos from all three before deciding.
ProLaw
Target: 25-1,000+ attorneys
ProLaw is a legacy enterprise product. Large firms already invested in Thomson Reuters' ecosystem may find value in the Westlaw integration, but modern alternatives like Filevine or Litify offer better user experiences at every scale.
Feature comparison
| Feature | Assembly Neos | ProLaw |
|---|---|---|
| Case Management | ||
| Case / matter management | ||
| Contact management | ||
| Conflict checks | ||
| Client intake forms | ||
| Client portal | ||
| Documents & Automation | ||
| Document management | ||
| Document automation | ||
| E-signatures | ||
| Email management | ||
| Billing & Accounting | ||
| Time tracking | ||
| Billing & invoicing | ||
| Trust / IOLTA accounting | ||
| Scheduling & Deadlines | ||
| Calendar management | ||
| Task management | ||
| Court rule deadlines | ||
| Platform | ||
| Reporting / analytics | ||
| Mobile app | ||
| API access | ||
Common questions
Assembly Neos scores 7.3/10 vs ProLaw's 6.0/10 in our ranking. Assembly Neos is the better pick for 5-100 attorneys. ProLaw is better if you need large firms (50+ attorneys) that want enterprise practice management from a trusted legal tech brand with deep integration into thomson reuters' legal research ecosystem.
Assembly Neos uses custom pricing (contact sales). ProLaw uses custom pricing (contact sales). Watch for add-on costs — the base price often does not include all features. Pricing last verified 2026-04-11.
Assembly Neos: No free trial. ProLaw: No free trial. Always test with your actual workflow before committing to an annual plan.
Assembly Neos covers 17 of 18 features we track. ProLaw covers 16 of 18. Assembly Neos has broader feature coverage, but more features does not always mean better — pick the tool that covers what your business actually needs.
Yes, Assembly Neos has a mobile app. ProLaw does too.
Yes. The main effort is migrating your data (customer lists, job history, invoices). Plan for 1-2 weeks of overlap where you run both. Most legal practice management tools can import CSV data. Ask both vendors about migration support before you sign.
The bottom line
Pick Assembly Neos if...
Plaintiff litigation firms that need a case management system designed specifically for the plaintiff workflow — intake, medical records, settlement, disbursement.
Pick ProLaw if...
Large firms (50+ attorneys) that want enterprise practice management from a trusted legal tech brand with deep integration into Thomson Reuters' legal research ecosystem.