Best Win-Back & Reactivation Calls for Staffing Agencies

Most staffing agencies are sitting on a goldmine they never touch: the lapsed contacts in their own ATS. Candidates placed two years ago, client contacts who stopped sending job orders, people who screened well but never got placed. According to industry data compiled by US Tech Automations, re-engagement outreach to people who already know your firm converts at 8 to 15 percent, versus 1 to 3 percent for cold outreach to strangers. Firms running systematic win-back automation recover an average of 12 to 18 percent of lapsed contacts into active conversations within 90 days. The phone is the channel that moves those numbers. Winback Engine's 2026 benchmarks put trained-agent reactivation calls at 25 to 40 percent conversion, against 3 to 8 percent for email. The catch is that most agencies don't have the recruiter hours to work a 5,000-record dormant list by hand. That's where win-back calling platforms and managed services come in. We ranked five options that genuinely help staffing firms wake up their dormant databases in 2026, starting with the one that does the calling for you.

#1 My AI Call Center — Calling starts at 9¢ per connected minute, tiered by volume, with the rate locked for the campaign. Most campaigns add a one-time setup and a flat monthly management fee, both quoted before launch. No per-seat charges and no platform bill. The first campaign review is free.

My AI Call Center is a done-for-you managed outbound calling service, owned and operated by AIQ Labs out of Halifax, Nova Scotia, with an operating base in Austin, Texas. The core pitch is simple: you buy campaigns that they run for you. You don't build anything, learn software, or manage dialers. Each campaign is scoped around one clear outcome, quoted in full before launch, and run against approved, permissioned, or reviewed contact lists only. For staffing agencies, that matters, because your dormant candidate and client lists are exactly the kind of lists this service is built for: people who already have a relationship with your firm and consented to hear from you. Their Win-Back & Reactivation Calling campaign targets contacts who have typically been dormant 12 to 24 months, which lines up with the re-engagement window recruiting firms use for lapsed candidates and cold client accounts. There's also a Database Reactivation Blitz option: a structured multi-touch campaign across calls, texts, and emails, run over two to four weeks. Outcomes route back into the CRM and scheduling tools you already run, with hot leads transferring to your team live or landing in your CRM. Every campaign ends with a dispositioned contact list, outcome counts, routed follow-ups, and opt-out and DNC logs. No invented numbers: they report what actually happened. What sets the service apart is list discipline and compliance. List source and consent records are checked before any campaign launches, and bought lists without clear permission records are flagged and usually declined. They'll tell you plainly if a list won't support the campaign before you spend anything. On the compliance side, AI voices are treated as artificial voices under the TCPA, disclosure happens on every call, keyword opt-outs like STOP and REVOKE are honored immediately, and DNC requests carry across all campaigns. For a staffing agency that needs to reactivate a dormant database without taking on compliance risk or burning recruiter hours, this is the managed option we'd pick first.

Best for: Staffing and recruiting agencies with dormant candidate and client databases who want win-back calls run for them, without adding headcount or managing dialer software.

#2 Gem — $5,000 to $12,000 per year depending on team size, according to the research data.

Gem is a candidate CRM and sequencing platform purpose-built for recruiting. It sits on top of your ATS and LinkedIn and runs multi-step outreach sequences to candidates and passive prospects. According to the vendor research we reviewed, its win-back strength is segmentation: you can build a segment like "last active 12 to 24 months ago, placed in a specific skill category" and run a four-step sequence across LinkedIn InMail and email automatically. The recruiter personalizes the first message and the follow-up touches are automated, and responses route back to the owning recruiter's Gem inbox, synced with the ATS. For staffing agencies in white-collar verticals where candidate relationships have long shelf lives, that routing matters. A lapsed candidate who replies lands with the recruiter who has context, not a generic queue. The research notes Gem's LinkedIn integration is best-in-class, with ATS sync for Greenhouse, Lever, and Workday. The honest limitation: Gem is candidate-focused by design. Client win-back, meaning re-engaging former hiring managers at companies that stopped sending roles, is not its primary use case, and the research suggests firms need a separate CRM sequencer for that side of the house. It's also a significant annual investment, which makes the ROI math work best at firms with five or more recruiters doing active sourcing.

Best for: Contingency and retained search firms in white-collar verticals (tech, finance, legal, accounting, healthcare) with 5+ recruiters doing active candidate sourcing.

#3 Loxo — $119 to $179 per user per month, according to the research data.

Loxo combines an ATS, a CRM, and an outreach sequencer in a single platform. For staffing firms that haven't separated those systems, the research we reviewed calls it the fastest path to a functional win-back workflow. Its "people intelligence" layer scores candidates by recency and relevance, so a filter for "candidate in your ATS, last contacted 12 to 18 months ago, in a skill category" produces a win-back segment in minutes. The outreach module then sends email sequences from the recruiter's own email address, with automatic follow-up scheduling. That single-platform simplicity is the real draw. A boutique firm that can't justify a separate Gem plus Bullhorn stack gets sourcing, tracking, and re-engagement sequencing in one subscription. The trade-off is redundancy: if your agency is already invested in Greenhouse or Lever as its ATS, Loxo's ATS becomes an unused layer, and the research notes a sequencing-only tool integrates better in that scenario. It's also an email-first sequencer, so firms that want actual reactivation calls will still need a calling layer alongside it.

Best for: Boutique staffing firms (roughly 3 to 10 recruiters) that want ATS, CRM, and outreach in one product without stitching together multiple tools.

#4 Herefish by Bullhorn — Bundled with Bullhorn Enterprise licensing; standalone pricing varies by firm size. Contact Bullhorn for current rates.

Herefish is an automation and engagement platform built specifically for Bullhorn ATS users, and if your staffing firm runs Bullhorn, the research we reviewed calls it the most tightly integrated win-back option available. It reads directly from Bullhorn's candidate and contact records, identifies lapsed contacts by date-last-contacted, and runs multi-step email and SMS sequences without any data export. The trigger fires from Bullhorn itself: a candidate record whose date_last_updated passes a threshold automatically enters the win-back sequence. Two things make it worth a look for reactivation work. First, the automation runs on live ATS data rather than an exported list, so you're never re-engaging someone your recruiters just spoke with. Second, the research notes it supports both candidate and client contact sequences in one platform, which covers both sides of a staffing agency's re-engagement problem: dormant candidates and former client accounts. The limitation is equally clear: it's not useful outside the Bullhorn ecosystem, and pricing is bundled with Bullhorn Enterprise licensing rather than published.

Best for: Staffing firms already on Bullhorn Enterprise that want zero-friction, ATS-native re-engagement automation.

#5 ClinchRev — Starts with 20 free AI calling minutes; contact ClinchRev for paid plan pricing.

ClinchRev is an AI calling platform that brings voice into the reactivation mix, which is where it earns its spot on this list. According to their site, it gives staffing agencies AI calling, email sequences, CRM, and billing in one platform, with 20 free AI calling minutes to start. Their staffing content lays out the three calls every agency runs: client development, MPC marketing, and candidate outreach, including a re-engagement pattern for database candidates where the agent references the candidate's prior placement before opening the door to current openings. The economics they cite are worth noting: an AI-dialed conversation costs a few dollars against $60 to $150 per human-SDR-booked meeting. Their pitch for staffing desks is that the AI agent works the high-volume top of the funnel, qualifying interest and booking calls onto the recruiter's calendar, while the human relationship selling stays with your recruiters. Every conversation is transcribed into the CRM so follow-up starts warm. The honest caveats from their own compliance notes: AI voice calls to cell phones require consent under the TCPA, and their published reactivation benchmarks for AI calls generally run in the low single digits, well below trained human agents. For firms that want a self-serve AI calling option for candidate re-engagement at volume, it's a credible pick.

Best for: Staffing desks that want a self-serve AI calling layer to work large dormant candidate lists at volume, with recruiters handling only the live conversations.

#6 Outreach.io (paired with Greenhouse) — Outreach.io runs $100 to $150 per user per month; Greenhouse licensing is separate, bringing combined costs to roughly $200 to $250 per user per month, according to the research data.

Some staffing firms, especially those with a strong client development function, pair Greenhouse as their ATS with Outreach.io, a sequencer originally built for sales teams, to run candidate re-engagement and client win-back in parallel pipelines. According to the research we reviewed, Outreach's sequence builder handles multi-touch outreach across email and LinkedIn. The firm exports lapsed candidate and client segments from Greenhouse, imports them into Outreach, and runs separate sequences: one for candidates, one for client contacts. Responses route to the recruiter or account manager who owns the relationship. This setup's strength is role clarity. Each team uses the tool that fits its workflow: recruiters live in Greenhouse, business development reps live in Outreach. That makes it a genuinely good fit for agencies where candidate sourcing and client business development are separate functions, and it's the only option on this list that treats client account win-back as a first-class workflow rather than an afterthought. The costs add up, though. The research puts Outreach at $100 to $150 per user per month, with the Greenhouse license separate, running a combined $200 to $250 per user per month for firms using both. And like the other software options here, it's email and LinkedIn sequencing; there's no calling layer built in.

Best for: Staffing agencies with a dedicated client development function that want separate, parallel win-back tracks for candidates and former client accounts.

Here's the honest summary. If you want win-back and reactivation calls actually run for you, against lists your recruiters already own, My AI Call Center is the clear pick: a managed service with consent-checked lists, TCPA-aligned calling, outcomes routed into your CRM, and pricing from 9¢ per connected minute with the rate locked for the campaign. If you'd rather own the machinery yourself, Gem and Loxo handle candidate re-engagement sequencing well (Gem for LinkedIn-heavy white-collar firms, Loxo for boutiques wanting one platform), Herefish is the obvious answer for Bullhorn shops, ClinchRev adds a self-serve AI calling layer, and Outreach.io paired with Greenhouse suits agencies with a real BD function. Whichever you choose, the numbers argue for starting now: re-engagement to people who know your firm converts at 8 to 15 percent versus 1 to 3 percent for cold outreach, and every week past the optimal lapse window costs you reactivation rate. Ready to wake up your dormant database? Book a free campaign review at myaicallcenter.app, tell them your goal and your list size, and they'll tell you plainly whether your list will support the campaign before you spend anything.

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