Overloop

What Is Overloop?

In 2015, Vincenzo Ruggiero built a Chrome extension called Prospect.io to scrape email addresses for his own cold outreach. A decade later, that side project has survived a full rebrand, a platform rebuild, and — as of December 2025 — an acquisition. It remains one of the few sales-engagement tools in its category that was profitable long before anyone bought it.

Prospect.io became Overloop in 2021, evolving from a lightweight scraping tool into a full AI-powered prospecting platform. The current product bundles a 450-million-contact B2B database, AI-written outreach emails, multichannel sequencing across LinkedIn and email, and a built-in pipeline tracker that many users run as a standalone lightweight CRM. Overloop has been fully remote since 2022 and now serves more than 5,000 companies daily across over 100 countries, according to Overloop's own figures.

The most recent chapter: Belgian marketplace platform Sortlist acquired Overloop on December 10, 2025, in Sortlist's largest deal to date. Both companies have been explicit that the acquisition is structural rather than operational. Existing logins, workspaces, pricing, and support channels carry over unchanged, and Overloop continues operating as an independent product under Belgian ownership rather than folding into Sortlist's core marketplace business.

Key Features

How Does Overloop's AI Email Writing Actually Work?

Rather than filling merge-field templates, Overloop's AI reads a prospect's company website and LinkedIn profile, then drafts an email referencing specifics from both — company focus, recent activity, role context. Follow-up emails in a sequence reference earlier messages rather than repeating a generic nudge. Reviewers consistently rate this as a genuine time-saver over manual personalization, though the output still benefits from a human editing pass before sending at volume.

What Makes LinkedIn Smart Limits Different From Competitors?

Most LinkedIn automation tools let users set daily action caps manually, which invites either overly cautious settings or account-risking aggression. Overloop's Smart Limits instead start new connections at just 5 actions per type per day and ramp gradually, with maximum caps varying by the user's own LinkedIn subscription tier. It's a more conservative default than rivals like Waalaxy or PhantomBuster ship out of the box. The trade is raw outreach speed for lower account-restriction risk — reasonable for teams that can't afford a banned LinkedIn account mid-quarter.

Is the 450M-Contact Database Actually Usable?

The database is large, but credits — not contact count — determine what a team can actually pull each month. Starter-tier users report netting around 125 verified contacts per month once credit costs for sourcing and verification are factored in, considerably less than the raw 250-credit allowance suggests at first glance. Growth and Enterprise tiers scale this up, but buyers evaluating Overloop on database size alone should model actual monthly credit consumption against their prospecting volume before committing.

What Does the Built-In CRM Actually Track?

Overloop's pipeline view — stages, deal totals per sector, activity history — is basic by dedicated CRM standards. Even so, user reviews specifically call it out as "fantastic... as a CRM alone". Teams that don't want to run outreach in one tool and pipeline tracking in another get a real advantage from that consolidation, compared to pairing a pure sequencing tool with a separate CRM subscription.

Where Does the Platform Fall Short on Emailing?

The emailing functionality itself draws the most consistent criticism in user reviews: single-recipient sending constraints and an interface reviewers describe as behind competitors' dedicated email tooling. For a platform built around AI-personalized email as a headline feature, that's a notable gap — Overloop's email generation is strong, but the surrounding send-and-manage experience lags what specialized email outreach tools offer.

How Does Onboarding Compare to Newer Prospecting Tools?

Overloop's decade of iteration shows in its onboarding flow. The visual campaign editor with branching logic is more mature than what many two- or three-year-old competitors ship. Users can build conditional sequences — if no reply after email one, add a LinkedIn step; if connection accepted, skip ahead — without needing a support call to figure out the interface. G2 reviewers specifically call the platform "intuitive and easy to implement," a contrast to the criticism aimed at its support responsiveness once something goes wrong post-onboarding. New users typically have a first campaign live within a day, materially faster than platforms requiring a dedicated onboarding call before launch.

Pricing

Overloop runs three tiers, all billed per user with no free plan. Starter costs $69/user/month for 250 monthly credits, one connected email account, and three active campaigns — enough for a single rep running a focused campaign. The effective contact yield after credit costs, though, is closer to 125 verified prospects. Growth, at $99/user/month, triples campaign capacity to 10, adds a second and third email account, and adds HubSpot, Pipedrive, and REST API access.

Enterprise drops the published price entirely in favor of custom quotes, adding Salesforce integration, unlimited email accounts and campaigns, and a dedicated Customer Success Manager alongside priority support. That's the tier where Overloop's ten-year platform maturity shows most clearly — the modular credit and integration structure scales cleanly from a single rep to a full outbound team without requiring a plan-hopping migration.

The absence of any free tier is a deliberate positioning choice against freemium competitors like Waalaxy. Overloop prices for teams that already know they need a prospecting platform, backed by a 14-day trial rather than a permanently free entry point.

EU Compliance & Privacy

Overloop is GDPR compliant and CASA Tier 2 certified, operating EU-hosted infrastructure from its Brussels base. The December 2025 acquisition by Sortlist did not change this. Both companies confirmed Overloop stays on the same European infrastructure, with no data migration or third-party transfers triggered by the deal, and SOC 2 certification is in progress as of the announcement.

Sortlist itself is a Belgian company headquartered in Wavre, near Brussels, so the acquisition keeps Overloop under EU ownership rather than introducing a non-EU parent with separate data-access obligations. That's a meaningful distinction for European buyers comparing Overloop against US-owned sales-engagement platforms.

Who It's Best For

Small to mid-sized sales teams wanting AI-personalized outreach and a built-in contact database without stitching together separate scraping, verification, and CRM tools will get the most value from Growth-tier Overloop.

Teams prioritizing LinkedIn account safety over maximum outreach volume benefit from Smart Limits' conservative default ramping, especially compared to more aggressive automation competitors.

Buyers who value platform longevity over the newest AI features may appreciate that Overloop's core sequencing logic has been refined since 2015 rather than built from scratch in the last two years.

If the priority is enterprise-grade sequence customization and dialer integration, Outreach or Salesloft scale further. Where the priority is heavy email-specific tooling — multiple simultaneous recipients, advanced deliverability controls — a dedicated email platform will outperform Overloop's emailing module specifically.

Agencies managing outreach for multiple clients should weigh the lack of a lower-cost multi-workspace option — Overloop's per-user pricing scales linearly with headcount rather than offering agency-specific volume discounts the way some newer competitors do.

The Verdict

Overloop's decade of profitable operation, EU-hosted compliance posture, and genuinely useful AI email writing make it a solid mid-market choice for European sales teams. It survived long enough to prove its core mechanics work before Sortlist's acquisition, rather than the other way around. Weak email-sending functionality, credit-limited effective contact volume, and inconsistent support outside CET hours are real costs to weigh against the per-seat price. Buyers should model actual monthly credit usage before choosing a tier, and keep an eye on how the Sortlist integration evolves through 2026.

None of that history guarantees the next two years look like the last ten. Acquisitions can go either way for a niche B2B tool: some retain their team and roadmap for years, others get quietly absorbed once the acquirer's own priorities shift. Sortlist's public messaging leans toward the former, and pricing continuity for existing customers is a good early signal. Buyers signing multi-year contracts should still factor in that uncertainty, rather than assume the Overloop of 2026 looks identical in 2028.

Frequently Asked Questions

Is Overloop GDPR compliant and where is data hosted?

Yes. Overloop is GDPR compliant and CASA Tier 2 certified, with EU-hosted infrastructure operated from its Brussels base. Following the December 2025 Sortlist acquisition, both companies confirmed the data infrastructure and compliance posture remain unchanged, with SOC 2 certification in progress.

How does Overloop compare to Outreach and Salesloft?

Outreach and Salesloft are built for larger sales organizations, with deeper sequence customization, dialer functionality, and revenue intelligence layered on top. Overloop is smaller in scope and lower priced, combining a 450M-contact database, AI email writing, and LinkedIn sequencing at $69-$99/user/month — a fit for small and mid-sized teams rather than a direct enterprise-scale replacement.

Does Overloop offer a free plan or free trial?

There's no permanent free tier, but Overloop offers a 14-day free trial with full platform access, enough time to test AI email writing and run a small sample campaign before committing to a paid plan.

How much does Overloop cost per month?

Starter is $69/user/month (250 credits, 3 campaigns), Growth is $99/user/month (500 credits, HubSpot/Pipedrive, API access), and Enterprise is custom-priced with unlimited campaigns and a dedicated Customer Success Manager.

Was Overloop acquired, and does that change the product?

Belgian marketplace platform Sortlist acquired Overloop on December 10, 2025. The deal keeps Overloop under Belgian, EU-based ownership, with the product continuing to operate independently — same logins, workspaces, pricing, and support — while deeper integration with Sortlist's platform rolls out progressively through 2026.