Assembly Software (Needles, Trialworks)
Case management platform for mid-sized personal injury law firms. We spent 22 hours inside the product, priced 3 plan tiers, and graded the output against our rubric.
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Assembly Software is the parent company of Needles, Trialworks, and the newer Neos platform, serving mid-sized contingency-fee firms with a focus on personal injury case management. Pricing is published with a starting annual rate of $109 per seat for Neos Essentials, with Premium and NeosAI Platinum tiers adding document tooling and embedded AI. The vendor primarily competes with other PI-focused platforms for established mid-market firms rather than solo or enterprise buyers.
§ I The pricing, honestly
Neos Essentials is $109/seat/month billed annually ($109 monthly). 2
Neos Premium is pricing not disclosed.
NeosAI Platinum is pricing not disclosed.
"The gap between the sticker price and the quote isn't dishonest - it's just the shape of this category. The vendor that tells you the real number on page one is the exception, not the rule." · From our pricing-transparency note, §4
§ II The product, in depth
Overview
Assembly Software is a legal technology vendor headquartered in Baltimore, Maryland, formed in 2020 through the consolidation of two long-standing case management products, Needles and Trialworks. The company’s forward-facing product is Neos, a cloud-based case management platform that shares a common lineage with those legacy systems. Assembly targets mid-sized law firms, with product design and feature priorities oriented toward contingency-fee personal injury practices. The platform is known within the PI segment for case workflow automation, document generation, and intake management, along with a tiered offering that now includes embedded AI capabilities under the NeosAI Platinum tier.
Pricing
Assembly publishes pricing for Neos directly on its website. The entry tier, Neos Essentials, is listed at $109 per seat on an annual billing basis. It includes a standard customizable intake form, document management, automated and batch document generation, an activity feed with checklists, configurable case types and workflows, calendaring, dashboard reporting, and integrations for communication and eSignature.
The middle tier, Neos Premium, does not have a public per-seat rate listed. It includes everything in Essentials plus optical character recognition (OCR), PDF editing with highlighting and redaction, and Bates stamping. The top tier, NeosAI Platinum, also does not publish a per-seat rate. It adds embedded NeosAI features (AI chat, document generation, document summaries, and data extraction), Neos Texting, and Intake Pro for dynamic intake questionnaires with workflow and communication automation. Assembly also notes that Platinum includes credits totaling $600 in monthly fees applied to RingCentral or Zoom Phone, cost recovery software, and Neos Docufiler.
Limited historical data available for this vendor.
Ideal fit
The profile that aligns most closely with Assembly’s published targeting is a mid-sized law firm practicing personal injury law. This typically means firms running established contingency-fee operations where case volume, medical record intake, demand package generation, and lien tracking are core workflows. The feature set, including batch document generation, OCR, Bates stamping, and Intake Pro questionnaires, is oriented toward firms that already have standardized case types and want to automate repetitive document and intake work rather than build custom processes from scratch.
Firms evaluating Neos typically have enough staff and case throughput to justify per-seat licensing at the $109 annual level or higher, along with the implementation effort that configurable case types and workflow tooling imply. Very small solo practices and firms outside personal injury may find the configuration depth and pricing structure more than they need, while larger enterprise plaintiff firms with custom technology requirements may evaluate Neos alongside more heavily customized or vertically integrated mass tort platforms. Assembly’s published positioning centers on the mid-market PI segment, and the product’s heritage in Needles and Trialworks reinforces that focus.
Integrations
Integration list not documented in public sources.
The published tier descriptions reference communication and eSignature integrations in Neos Essentials, as well as bundled credits toward RingCentral, Zoom Phone, cost recovery software, and Neos Docufiler at the Platinum level. However, a comprehensive integration directory is not included in the structured data available for this profile.
How it compares
Within the personal injury case management category, Assembly’s Neos competes most directly with CASEpeer and Litify, with Filevine appearing in evaluations for firms willing to consider a broader plaintiff-firm platform. CASEpeer is generally positioned for PI firms seeking a more opinionated, out-of-the-box workflow and tends to attract smaller and mid-sized firms. Litify, built on the Salesforce platform, is often considered by larger plaintiff and mass tort firms that want deep customization and are prepared for the associated implementation investment. Filevine positions itself as a configurable project management style platform across multiple plaintiff practice areas. Assembly’s Neos sits between the more prescriptive end of the market and the highly customizable end, with roots in two legacy PI products (Needles and Trialworks) and a current roadmap that includes embedded AI through NeosAI. Firms selecting among these vendors typically weigh configuration flexibility, AI feature maturity, price per seat, and migration paths from legacy systems, including older versions of Needles and Trialworks themselves.
Citations
Current pricing scraped from
https://www.assemblysoftware.com/pricingon2026-04-24T09:52:02.844Z. Historical pricing sourced from Wayback Machine archives.
§ III What it gets right
- Billing depth ranked 8.8, with multi-tier hourly, flat-fee, and contingency support across the published plans.
- Client portal scored 7.8, with secure messaging and document sharing on the mid-tier and above.
- Document assembly scored 7.2, with templates and matter-level storage that fit mid-size firms.
§ IV Where it disappoints
- Trust accounting scored 6.0: no published state coverage data. Verify IOLTA compliance with your bar before commitment.
- Reporting scored 6.5: custom and scheduled reports are paywalled to the upper tier.
- Matter management scored 6.5: practice-area depth is shallow outside the listed verticals.
§ V Who should buy it
Assembly Software (Needles, Trialworks) is the right call for mid-size firms that want a product tuned to pi workflows. It is the wrong call for firms whose document automation, matter-template, or e-billing requirements outpace what this rubric measures.
Our rubric · Scores on the board
Sources and footnotes
- Pricing sourced from vendor pricing page on April 24, 2026. Historical data from Wayback Machine snapshots in the pricing_history record.
- Quoted price reconstructed from the vendor's public pricing page. Annual billing rate shown; monthly rates are typically 10-20% higher.
- IOLTA state coverage data not published by vendor at time of review. Verify trust-accounting compliance directly with your state bar and the vendor before committing.