7 Top Outsourced Telesales Agencies

The very best outsourced telesales agencies don’t need to discuss their name volumes. That ought to inform you one thing.

Most company pitch decks lead with dials per day, join charges, and discuss time. These numbers measure effort, not outcomes. And but the telesales business has spent 20 years promoting patrons on precisely that story. Consequently, it’s genuinely laborious to inform a high-performing telesales partner from an costly name heart with a very good PowerPoint.

The 2026 Pipeline Influence Index was constructed on a unique premise. The one quantity that issues is whether or not outsourced telesales providers transfer certified offers into your pipeline. What follows is a ranked checklist of the businesses that may show it.

At a Look

This text applies the Pipeline Influence Index — a five-factor framework developed by Callbox — to rank the highest outsourced telesales businesses for 2026 by income outcomes, not exercise metrics. We cowl what separates real pipeline companions from activity-driven distributors, how you can match an company to your pipeline stage, and what to ask earlier than signing. By the tip, you’ll know which telesales firms belong in your shortlist and how you can maintain any company to a transparent customary.

Why Most Telesales Rankings Get It Unsuitable

Open any “high telesales businesses” checklist and you will note the identical sample. Businesses are ranked by years in enterprise, agent headcount, or business awards. Nearly none are ranked by pipeline contribution.

This issues as a result of exercise and outcomes usually are not the identical factor. One company could make 500 dials every week and ship zero certified alternatives. One other could make 150 dials and constantly produce pipeline that converts at 30% or larger. The distinction will not be effort — it’s whether or not the company was constructed to generate income or constructed to generate studies.

What Is the Pipeline Influence Index?

The Pipeline Influence Index is an analysis framework developed by Callbox to evaluate outsourced telesales businesses on outcomes, not exercise. We constructed it as a result of no constant, revenue-focused customary existed for evaluating telesales firms aspect by aspect.

Businesses are scored throughout 5 dimensions. An company that performs effectively throughout all 5 is a real pipeline companion. One which scores effectively in just one or two is a vendor promoting entry to a telephone line.

Use this framework to judge any telesales company, together with those under.

Pipeline Stage Matching: The Step Most Consumers Skip

Not each telesales company covers each stage of the funnel. Due to this fact, selecting an company constructed for top-of-funnel prospecting once you want bottom-of-funnel closing assist is likely one of the costliest errors in telesales outsourcing.

Three pipeline levels are value understanding. 

• Prime-of-funnel telesales focuses on outbound prospecting and reserving certified discovery calls. 
• Mid-funnel telesales covers lead nurturing and re-engaging stalled prospects. 
• Backside-of-funnel telesales handles proposal follow-up and shutting assist for offers already in your pipeline.

Know which stage you want earlier than you shortlist. Every itemizing under notes the place every company performs greatest.

The 2026 Pipeline Influence Index: Prime Telesales Businesses

1. SalesRoads

Web site: Salesroads

Finest for: Mid-market and enterprise B2B appointment setting

SalesRoads has constructed its title on predictable pipeline supply for mid-market and enterprise groups. SDRs common 5 to 10 years of expertise, which cuts the ramp time most telesales firms wrestle with. Earlier than a single name is made, the company builds a client-specific demand era playbook — so each dialog displays your model voice and ICP.

Most significantly, SalesRoads tracks alternative conversion charges and adjusts its calling technique primarily based on what the information reveals. Most telesales firms skip that step completely.

What makes it distinct: The playbook-first mannequin means SalesRoads works as a gross sales technique companion, not simply an outbound vendor.

2. Belkins

Web site: Belkins

Finest for: Outbound chilly calling mixed with e-mail and LinkedIn sequences

Belkins combines telesales with e-mail campaigns and LinkedIn outreach, constructing a coordinated prospecting movement that lifts connection charges throughout all three channels. Due to this multichannel method, prospects keep engaged between calls — which shortens the time to a booked assembly. The company additionally screens conversion charges mid-campaign and adjusts technique earlier than the issue compounds.

What makes it distinct: Belkins treats telephone calls as one enter in a broader sequence. That makes it simpler in markets the place chilly name reply charges have dropped.

3. Callbox

Web site: Callbox Inc

Finest for: Full-funnel B2B telesales — high by mid-funnel

Callbox is likely one of the most acknowledged names in outsourced B2B telesales, with over 20 years of expertise and multilingual groups throughout APAC, LATAM, EMEA, and North America. What units Callbox other than most telesales outsourcing firms is its income structure. It doesn’t hand you a listing of dials. It builds a pipeline engine.

The place most telesales businesses hand off a gathering and transfer on, Callbox stays within the deal. It picks up proper after consciousness, converts prospects into certified conversations, and carries that momentum by to closed income. From there, it shifts into retention — turning new clients into repeat patrons, referral sources, and enlargement alternatives that feed again into the pipeline. Consequently, the income cycle compounds over time slightly than resetting with each new marketing campaign.

What makes it distinct: Callbox covers the complete income lifecycle. Its pipeline nurturing loop is tough to copy with a single-channel vendor.

4. Martal Group

Web site: Martal Group

Finest for: Tech and SaaS firms scaling B2B pipeline

Martal Group locations senior fractional gross sales executives on consumer applications — not junior brokers. These are folks with direct gross sales expertise in your vertical, which improves dialog high quality and shortens the trail from first name to certified alternative. Moreover that, the company has generated pipeline for over 2,000 B2B organizations, giving it one of many broader monitor information on this index.

What makes it distinct: Consumers converse with somebody at peer stage. That may be a actual benefit in enterprise and mid-market B2B telesales.

5. Intelemark

Web site: Intelemark

Finest for: Healthcare, know-how, logistics, and manufacturing

Intelemark focuses on advanced B2B verticals the place lengthy gross sales cycles and technical purchaser data are non-negotiable. Its telesales providers cowl appointment setting, lead qualification, nurturing, and buyer reactivation — due to this fact giving shoppers protection throughout a number of pipeline levels below one program. The company treats telesales as a part of full-funnel lead era, not a standalone outbound exercise.

What makes it distinct: Vertical depth means its brokers maintain technically credible conversations with procurement leads and senior patrons — one thing most generalist telesales firms can not do.

6. High quality Contact Options (QCS)

Web site: Quality Contact Solutions

Finest for: Compliance-sensitive telesales applications

QCS is likely one of the few PCI Degree 1 licensed telesales suppliers available in the market. Due to this, it may handle outbound applications in regulated industries with out exposing shoppers to TCPA or knowledge dealing with threat. It additionally affords versatile pricing — hourly, performance-based, or hybrid — and runs in-house QA providers that the majority outsourced telesales suppliers lack.

What makes it distinct: For firms in monetary providers or healthcare, QCS removes compliance threat that the majority telesales outsourcing firms create slightly than remedy.

7. Flatworld Options

Web site: Flatworld Solutions

Finest for: Value-efficient, high-volume B2B telesales

Flatworld Options runs ISO-certified, Lean Six Sigma-aligned telesales operations constructed for consistency and measurable enchancment. Its applications span a number of verticals and time zones, making it sensible for international outbound campaigns. Due to its course of self-discipline, output high quality holds up over time — a standard failure level in high-volume outsourced applications.

What makes it distinct: Lean Six Sigma utilized to telesales is uncommon. It means outcomes degrade much less as quantity scales.

Three Inquiries to Ask Earlier than You Signal

How do you outline a professional lead?

If the company defines a professional lead as “a contact who agreed to obtain extra info,” your pipeline will fill with noise. The definition should match your gross sales staff’s standards: finances, authority, timeline, and wish. Businesses that may’t reply this clearly usually are not able to personal your pipeline.

Are you able to present pipeline outcomes throughout a number of shoppers in my vertical?

A single case examine will not be proof of consistency. Ask for meeting-to-opportunity charges and common deal values throughout no less than three comparable shoppers. Businesses assured of their outcomes share this knowledge with out hesitation. Businesses that aren’t have a tendency to supply testimonials as an alternative.

What occurs when a marketing campaign underperforms?

Sturdy businesses have a transparent reply: weekly conversion opinions, documented changes, and clear reporting on what modified and why. Weak businesses clarify the shortfall and await the following cycle. The reply to this query tells you extra about an company than any pitch deck.

The Hidden Value of Selecting on Value

Most patrons slim their shortlist primarily based on value per hour or value per lead. This method reliably produces the improper final result.

Think about two choices. Company A fees $15 per hour and delivers one certified alternative per 200 dials. Company B fees $40 per hour and delivers one per 60 dials. Company B is cheaper as a result of price per certified alternative is what issues — not price per name.

Earlier than finalizing any telesales outsourcing determination, ask the company to mannequin price per certified alternative primarily based on their historic knowledge. Businesses assured of their pipeline outcomes will run that calculation with you. Businesses that resist are providing you with necessary info.

The Commonplace Has Modified

Consumers who acquired burned by activity-first telesales applications have raised the bar. They ask tougher questions, demand pipeline proof, and reject dashboards stuffed with dials with nothing to indicate within the CRM.

The businesses on this index have tailored to that customary. They measure what issues, report what’s actual, and construct their applications round your income — not their very own metrics.

Use the Pipeline Influence Index as your filter. Businesses that exhibit ICP alignment, conversion transparency, CRM integration, sales-cycle match, and repeatable pipeline proof deserve an actual dialog. Businesses that lead with dial counts deserve a well mannered go.

Your pipeline deserves a companion constructed to fill it — not a vendor constructed to report on it.