Trellus review
Real-time AI sales coach and parallel dialer for SDRs
Trellus is an AI-powered parallel dialer and real-time sales coach for SDR and outbound teams, delivered as a Chrome extension that layers onto existing CRMs and sales engagement platforms.
Independently researched by the SalesHive team. Ratings are from public review platforms; this page is not sponsored by or affiliated with Trellus. Research last updated December 2025.
What is Trellus?
Trellus is a New York, based sales technology startup that provides an AI-powered cold calling copilot and embedded dialer for sales development teams. Built and operated by Outpost Labs Inc. (dba Trellus), the platform runs as a Chrome extension on top of tools like Salesloft, Outreach, HubSpot and Apollo, turning them into high-velocity power and parallel dialers while delivering in-call coaching prompts.
Founded in 2022 and backed by Y Combinator (YC W22) and other early-stage investors, Trellus focuses on real-time guidance rather than only post-call analysis. The software listens to live conversations, then surfaces behavioral cues (e.g., slow down, pause, ask a question) and objection-handling suggestions while reps are on the phone. It also automates repetitive tasks such as dialing, voicemail drops, call dispositioning, call notes and follow-up email generation so reps can spend more time in conversations.
On the infrastructure side, Trellus integrates natively with browser-based dialers and popular sales engagement platforms via its Chrome extension, rather than requiring a standalone dialer UI. This lets teams keep their existing workflow and tech stack while adding capabilities like multi-line dialing, AI-generated prospect and company research, real-time transcription, conversation analytics and number health/spam monitoring. For managers, Trellus provides dashboards and call scoring to identify best practices, close performance gaps between reps and run structured call blitzes in a virtual sales floor environment.
Trellus primarily serves B2B organizations with outbound motions, especially SaaS and technology companies that rely heavily on SDRs and BDRs for pipeline generation. With a free individual plan, self-serve paid tiers and a customizable business plan for teams, Trellus positions itself as a more affordable, AI-first alternative to traditional parallel dialers such as Orum and Nooks, emphasizing conversation quality and coaching over pure dial volume.
Trellus key features
Teams typically use it for cold call outreach and appointment setting, sales prospecting and lead qualification, high-volume outbound calling with parallel dialing, and more.
- Real-time AI call coaching. provides live prompts for objection handling, discovery questions, pacing and next steps while the rep is on the call.
- Embedded power & parallel dialer. turns your existing SEP/CRM (e.g., Outreach, Salesloft, HubSpot, Apollo) into a dialer capable of single-line or up to 5-line parallel dialing.
- Auto-dialing & call automation. automatically dials through lists, detects voicemails/busy tones, drops pre-recorded VMs and skips bad numbers to maximize live connects.
- AI-generated call summaries. creates structured post-call notes and summaries that can be synced back into CRM or engagement platforms.
- AI-generated follow-up emails. drafts personalized follow-up emails based on the call transcript and context.
- Real-time transcription. transcribes calls live so reps and managers can reference key moments and improve talk tracks.
- AI prospect & company research. generates pre-call research on prospects, company news and local context (e.g., weather, news) to help reps personalize conversations.
- Conversation analytics & dashboards. tracks activity, connect rates, talk-to-listen ratio, outcome metrics and call scores to surface coaching opportunities.
- Sales floor & call blitz support. provides a virtual sales floor where reps can dial together, listen to each other's calls and run structured call blitzes.
- Practice voice bots. lets reps practice against AI voice agents that simulate real prospects, built from historic calls to ramp new hires faster.
- Number health & spam remediation. manages multiple outbound numbers and automates health checks/rotation to reduce spam flagging and improve connect rates.
- LinkedIn inbox management. a "Superhuman for LinkedIn" experience that consolidates LinkedIn and Sales Navigator DMs, adds snoozing, snippets and keyboard shortcuts.
- CRM & SEP native workflow. works directly inside tools like Salesloft, Outreach, HubSpot and Apollo so reps don't need to switch tabs or maintain separate dialer systems.
- Team analytics & QA. scores 100% of calls for script adherence and behaviors, enabling managers to compare top and bottom performers and standardize best practices.
What reviewers love, and what to watch
A balanced view of Trellus, drawn from public reviews and product research.
Pros
- Very easy to set up and onboard, with a lightweight Chrome extension that works on top of existing tools rather than forcing a new UI.
- Seamless integrations with common sales stacks (e.g., Outreach, Salesloft, HubSpot, Apollo) simplify workflows and reduce context switching.
- Parallel dialer and automated call workflows significantly increase connect volume and live conversations per rep.
- Real-time AI coaching and objection handling help newer reps ramp faster and improve consistency across the team.
- Strong customer support and responsiveness to feedback, with fast product enhancements based on user requests.
Cons
- Some users feel the pricing can be high relative to certain alternatives, especially at scale for team plans.
- Feature set is still evolving compared to large, established dialers; a few reviewers mention missing or desired features such as SMS or broader multichannel capabilities.
- As a Chrome extension, reliability and performance depend on the browser environment and a stable internet connection; offline usage is limited.
Trellus pricing
Published pricing at the time of research. Always confirm current rates with the vendor.
- Unlimited call recordings & transcription
- AI-generated follow-up emails
- AI-generated call summaries
- AI-generated prospect & company research
- 30 free power dials per week
- All Free features
- Unlimited single-line dialing
- Voicemail drop on select platforms (Outreach, Salesloft, Apollo)
- Access to past transcripts
- Superhuman for LinkedIn inbox management
- All Power features
- Multi-line parallel dialing (up to 5 lines)
- Voicemail drop on all supported platforms
- Unlimited AI practice calls
- 5 additional phone numbers plus spam remediation
- All Parallel features
- Customizable AI research and real-time coaching models
- Team-based analytics and conversation intelligence
- Custom reporting and modeling
- Centralized administration and support for larger teams
Free plan for individuals includes unlimited call recordings and transcription, AI-generated follow-up emails and call summaries, AI research, and 30 power dials per week.
Who Trellus is for
A strong fit for
B2B organizations with outbound SDR/BDR teams that rely heavily on phone-based prospecting, use tools like Outreach, Salesloft, HubSpot or Apollo, and want to increase call volume and meeting conversion while standardizing coaching across reps.
Probably not for
Teams whose primary motion is inbound, email-only or product-led self-serve, organizations that require full omnichannel marketing automation rather than a dialer-first sales tool, and companies that prohibit Chrome extensions or browser-based sales tools for security or IT policy reasons.
How Trellus compares
Within the AI dialer and sales coaching space, Trellus positions itself between traditional power/parallel dialers and heavyweight conversation-intelligence platforms. Tools like Orum and Nooks focus primarily on maximizing connect volume with very high parallel-dial capacities and robust enterprise tooling, but they typically come at a higher price point and rely on separate dialer interfaces. Trellus instead embeds inside Outreach, Salesloft, HubSpot, Apollo and similar platforms via a Chrome extension, trading some dialer-only sophistication for a simpler, lower-friction workflow that SDRs adopt quickly.
Compared with AI coaching or revenue intelligence platforms like Gong or Avoma, Trellus is more narrowly focused on the SDR cold-calling motion. It provides in-the-moment prompts, automated dialing, number health and practice bots rather than broad meeting analytics, deal intelligence or multi-channel engagement. For teams that primarily need to get more high-quality conversations from their existing lists, and already have email, CRM and enablement tools in place, Trellus can be an efficient, budget-friendly way to add AI-powered calling and coaching without overhauling the stack.
Tool research is the easy part. Someone still has to build the lists, write the copy, make the calls, and book the meetings.
Frequently asked about Trellus
The short version is on the surface. Open any question to go deeper.