Top 10 Callbox Alternatives To Consider in 2026

Callbox is a great B2B lead generation agency, with many high ratings across the web. But perhaps you worked with them in the past, and they didn’t hit the mark, and you would like to hire a new lead generation agency.

If that’s you, keep reading because in this article, we will only share the best Callbox alternatives to hire in 2026.

Every agency on this list deserves to be here, and they are some of the best players in the B2B lead gen space.

(SalesBread is a LinkedIn lead generation and appointment setting agency. If you would like to hop on a free 15-minute lead gen strategy session with us, go here... Our clients know that they can expect 1 lead per day.)

Top callbox alternatives comparison table

Why you might want a Callbox alternative

Callbox is a rather large company. They have a global focus and offices all over the world, from North America to Australia, Europe, and Asia.

Sometimes huge companies are great, especially for enterprise, but other times, some founders or sales teams might want to work with smaller agencies that focus more on high-quality lead gen that is more personalized.

For example, we have also seen that some larger companies hand off projects to junior SDRs.

You might have the founder or a senior sales rep on the sales call to win you over, but once you sign up with them, you end up getting fobbed off to someone you’ve never even met before.

In these cases, you might end up feeling a little bit tricked. The person you get handed over to might not be as knowledgeable as the founder. We have heard these stories many, many times.

Because Callbox is such a large company, some clients mentioned that they also weren’t always happy with the quality of the leads.

We have also noticed that some companies prefer working with agencies that specialize in one thing.

Some agencies do a bit of everything, from cold calling to inbound, to SEO, and even LinkedIn lead gen…

It’s like the famous Bruce Lee quote:

Because they are a “Jack of all trades”, it might be like they are good at everything but not excellent at one thing. You want to work with an agency that are masters of their lead gen channel.

If that’s the case, there are some agencies on the list below that are more boutique and will offer you a more personalized experience.

Callbox is also pretty expensive, so they might not be the best agency for small businesses and startups.

If you are looking for a more affordable agency, there are some listed below that might be a better fit for your needs.

1.SalesBread – Appointment Setting & LinkedIn lead gen

If you are looking for an agency that is smaller and really focuses on their clients as individuals, you should reach out to SalesBread.

SalesBread is a boutique B2B LinkedIn lead generation agency that specialises in LinkedIn outreach and appointment setting.

For over a decade, we have been getting our clients 1 lead per day with our personalized outreach and ultra-refined list building.

At SalesBread, you will always work directly with the founder and won’t be locked into any contracts. Our results keep our clients to stay, not a contract.

Who is SalesBread best for?

SalesBread is best for B2B companies that know that their ideal customers are on LinkedIn. We are also a good choice for companies that want a more personalized approach.

You will work directly with the founder to ensure that your lead generation campaigns get the best results. We also guarantee a lead per day (T’s & Cs apply).

Which industries does SalesBread work with?

• SaaS & Tech

• Healthcare

• Marketing

• Fintech

• Crypto

• Recruitment

• Video production

• Higher education

• Law

• Regtech

When SalesBread might not be a good fit

SalesBread might not be a good fit for you if you are not a B2B company.

We also usually have a 2-week wait list; the reason for this is that we only onboard a few clients at a time to ensure that our quality is always excellent.

Pricing

SalesBread is a lot more affordable than Callbox. According to some online research, Callbox is 10x the price of SalesBread per month.

Our service essentially replaces the need for a trained Outbound Sales Rep at your company for less than half the cost of a full-time salary. 2-3k/month

SalesBread Reviews

Interested in reading more reviews? Check out my LinkedIn page.

Read some of our case studies

IT Lead Generation Case Study – 294 Leads Generated, 41% Average Reply Rate

Echtus Enterprise Lead Generation Case Study – 62 Leads in the First 60 Days

How to Sell to Banks – 85 Leads in 8 Weeks

2. Leadium – Multi-channel lead generation

Leadium offers multichannel outreach, from gifting to appointment setting and even cold calling.

They also have excellent reviews, and score 5 out of 5 stars on Google reviews.

It’s an agency that has also been around for a while, so they know what they are doing.

What you might like is that they have a 100% US based SDR team. Some companies don’t mind using SDRs from other parts of the world, but other companies do.

They also mention on their site that they have booked over 150k appointments.

Who should use Leadium?

Leadium is a good choice for companies that need a multichannel approach. If you are interested in having a company do cold calling, LinkedIn lead gen, cold email, and even marketing events, they can help.

They also work with B2B companies, so if you are B2C, they might not be a good fit. They also only use US-based sales reps. If this is something that’s important for you, then they are a good choice.

Which industries does Leadium work with?

• SaaS & Technology

• Healthcare

• Financial Services

• Marketing Agencies

• Real Estate

• Manufacturing

• Recruitment

• Logistics

• Professional Services

• E-commerce

When Leadium might not be a good fit

Leadium might not be the best fit for companies that want to work directly with the founder, or if you want highly personalized lead gen. Because they are a bigger agency, you will be handed off to a senior sales rep.

They don’t offer inbound lead generation, but they do offer inbound lead qualification.

Pricing

Unfortunately, Leadium doesn’t mention pricing on their site, but they do give ranges when booking a sales call. Pricing ranges between $2500, to over $10 000.

Leadium Reviews

Leadium has many case studies on their website for you to read. As I mentioned earlier, they score 5 out of 5 stars on Google and also have a few great reviews on G2.

3. memoryBlue – Global reach SDR service

memoryBlue is a good choice for companies that want outsourced SDRs. They also offer a few other services, but they are best known for their sales development teams.

You can use them as a Callbox alternative because they have really good reviews. They also mention that they are human-powered, but supported by AI.

They also offer outreach in 30+ languages, so if you need SDRs to target a specific location with a specific language, they can help with that.

Who is memoryBlue best for?

memoryBlue is best for B2B technology companies, SaaS businesses, cybersecurity firms, and enterprise companies that want to grow their outbound efforts pretty quickly.

They are also a good option for companies entering new markets, testing outbound messaging, or expanding globally, and need more languages than just English.

And if you need more than just SDRs, they also offer training for your in-house reps.

Which industries does memoryBlue work with?

• SaaS & Technology

• Cybersecurity

• AI & Data

• Fintech

• Healthcare Technology

• Public Sector & Government

• Marketing Services

• Logistics

• Professional Services

• Enterprise Software

When memoryBlue might not be a good fit

memoryBlue might not be the best fit for smaller businesses because they can be quite pricey.

Their model is built more around SDR services rather than hands-on customization.

They may also not be a good fit for businesses that are not focused on outbound B2B sales.

Pricing

memoryBlue doesn’t share their pricing on their website, but it’s because they offer a few services.

If you would like to learn more about them, you can just reach out to them directly on their website.

memoryBlue Review

memoryBlue had some really great reviews across the web, from 4.7 stars on Clutch to 4.6 stars on G2.

4. Pearl Lemon Leads – SEO, PPC, and link building

Pearl Lemon was always a lead gen agency that also focused on outbound, but they seemed to have pivoted in recent years to more of an SEO, PPC agency.

They still do LinkedIn lead generation, but their focus has changed to SEO services. You might want to consider them if you would like to add SEO to your lead generation methods.

Just remember that SEO does take a bit of time to gain traction, but we also always suggest investing in both SEO and outbound lead generation to scale your efforts.

Pearl Lemon is also well known in the digital marketing space, and they have offices in both the UK and the US.

Who is Pearl Lemon best for?

Pearl Lemon is probably a good option if you need SEO services. Yes, they do offer outbound, but their speciality is SEO.

They are often a good fit for startups, SaaS companies, agencies, and businesses that want more leads from their websites.

Which industries does Pearl Lemon work with?

• SaaS & Technology

• Marketing & Advertising

• Healthcare

• Finance

• E-commerce

• Luxury brands

• Professional Services

• Hotels

• Universities

• Local Businesses

When Pearl Lemon might not be a good fit

Pearl Lemon might not be the best agency if you are looking for outbound lead gen. Yes, it is a service that they offer, but they specialize in SEO.

Pricing

Unfortunately, they don’t mention pricing on their website. They have many services to offer, so you would need to reach out to them for personalized pricing.

Pearl Lemon Review

Pearl Lemon has a 4.3-star rating on TrustPilot out of 132 reviews. Clients mentioned that the team at Pearl Lemon is pretty knowledgeable and takes care of their clients’ needs.

5. SalesRoads – Outbound emailing

SalesRoads is a good Callbox alternative if you are looking for an outbound lead generation agency that also does cold calling and cold emailing.

They do a mix of lead generation strategies, from cold calling to list building and even inbound appointment setting.

What’s also great about SalesRoads is that they don’t lock you into any contracts. You can cancel at any time.

SalesRoads has also been around for over 19 years, so they have quite a bit of experience to back them up. They are quite pricey, but a little more affordable than some other companies on this list.

Who is SalesRoads best for?

SalesRoads is best for B2B companies that need a lead generation agency that can handle cold calling, too. They are a pretty decent Callbox alternative, and quite a bit more affordable.

Which industries does SalesRoads work with?

• SaaS

• Manufacturing

• FED and SLED

• Healthcare

• Insurance technology

• Compliance

• Fintech

When SalesRoads might not be a good fit

SalesRoads is still quite pricey, and some new startups might not be able to afford them every single month.

Pricing

Their pricing is pretty transparent and starts at $9,950 for 4 weeks. This includes an SDR, sales operations team,

Director of client success and a talent development manager.

SalesRoads review

SalesRoads has great rankings on G2, scoring 4.9 out of 5 stars. Many clients mentioned how they got good results and how SalesRoads was professional.

The only downside was that some mentioned a high SDR turnover.

6. Super Human Prospecting – Cold Calling

Superhuman Prospecting is a good option if you need a lead generation provider that specialises in cold calling. They also offer inbound services, if you would like to work with an agency that does both.

They also work with both B2B and B2C (inbound lead gen) companies and help a number of different industries generate leads.

Superhuman also has US-based cold callers, so if this is important to you, then they are a good option.

Their pricing is also competitive, so they could be a good option for startups and SMBs.

Who is Superhuman best for?

Superhuman is a good choice for B2B and B2C companies that need outbound and inbound lead generation. They are also a good choice for companies that want US-based cold callers.

Which industries does Superhuman work with?

• Tech

• Manufacturing

• SaaS

• Education

• Healthcare

• Cannabis & CBD

• Digital marketing

When Superhuman might not be a good fit

Superhuman offers a bit of everything. If you would like an agency that is very niche-specific in their outreach channel, you might want to choose another agency on this list.

Superhuman Review

Superhuman prospecting also has really good reviews on G2. In fact, they score 4.9 stars out of 5. Some clients mentioned that they received great service and excellent quality work,

7. SalesHive – AI-Powered SDR Agency

SalesHive is a good option if you need a lead generation agency that specializes in outbound sales development and appointment setting.

They focus heavily on cold email outreach, cold calling, and LinkedIn prospecting to help companies generate qualified meetings.

They mainly work with B2B companies and help startups, SMBs, and enterprise businesses grow their sales pipeline.

SalesHive also combines human SDRs with technology and automation, so they are a good option for companies that want a more scalable outbound strategy.

Their pricing is usually more affordable than hiring and training a full in-house SDR team, so they can be a good option for companies that want predictable outbound lead generation without growing their internal team.

Who is SalesHive best for?

SalesHive is a good choice for B2B companies that need scalable outbound lead generation and appointment setting support.

They are also a good fit for businesses that want multichannel outreach campaigns using cold email, cold calling, and LinkedIn outreach.

Which industries does SalesHive work with?

• SaaS

• Technology

• Healthcare

• Manufacturing

• Financial services

• Marketing agencies

• Recruitment

• Logistics

• Professional services

• Education

When SalesHive might not be a good fit

SalesHive focuses more on scalable outbound systems and processes. If you are looking for a boutique agency with highly personalized founder-led outreach, you may prefer a smaller agency on this list.

They also may not be a good fit for B2C companies or businesses that need inbound marketing.

SalesHive Review

SalesHive has good online reviews and many clients like them for their responsiveness, communication, and ability to generate qualified meetings.

Some clients also mention that they liked the structured reporting and consistent outreach process.

8. Lead Cookie – Relationship-based prospecting

Lead Cookie is a good option if you need a lead generation agency that focuses on LinkedIn outreach and relationship-based prospecting.

They help B2B companies generate leads through personalized LinkedIn campaigns and appointment setting.

Lead Cookie doesn’t offer cold calling or mass cold email outreach. They try to be conversational in their outreach messages and have a softer approach to lead generation.

They also offer flexible packages, so they can work well for startups and smaller businesses that may not have the budget for a large outbound sales team.

Who is Lead Cookie best for?

Lead Cookie is a good fit for B2B companies that know their ideal customers are active on LinkedIn.

They are also a good option for consultants, agencies, coaches, SaaS companies, and service-based businesses that rely on relationship building to close deals.

Because they are pretty affordable, they are a good fit for companies that have lower budgets.

Which industries does Lead Cookie work with?

• SaaS

• Consulting

• Marketing

• Coaching

• Recruitment

• Professional services

• Technology

• Finance

• Healthcare

• Education

When Lead Cookie might not be a good fit

Lead Cookie mainly focuses on LinkedIn outreach, so they may not be the best fit if you want a heavy cold calling strategy or multichannel outbound campaigns.

They also won’t be a good choice for companies targeting industries where decision-makers are not very active on LinkedIn.

Lead Cookie Review

Lead Cookie has positive reviews from clients who like their personalized approach and communication style.

Many businesses mention that the outreach feels more natural and less spammy than traditional lead generation campaigns.

Lead Cookie doesn’t have third-party reviews, but there are many client testimonials and case studies on their site for you to check out if you’re interested in working with them.

9. Belkins – Cold email outreach

Belkins is a good option if you need a lead generation agency that specializes in cold email outreach and appointment setting.

They are one of the more well-known outbound agencies and have worked with a large number of B2B companies across different industries.

They mainly focus on outbound lead generation, cold email campaigns, appointment setting, and sales development support.

Belkins also helps companies with prospect research and email deliverability, which is important if you are sending outbound campaigns at scale.

They are a bigger agency, so they are often a good fit for companies that want a more structured outbound process and dedicated teams to manage campaigns.

Who is Belkins best for?

Belkins is a good choice for B2B companies that want cold email outreach and appointment setting services.

They are also a strong option for SaaS companies, agencies, tech companies, and businesses that need help building a predictable outbound sales pipeline.

Which industries does Belkins work with?

• SaaS

• Technology

• Healthcare

• Manufacturing

• Finance

• Recruitment

• Marketing

• Professional services

• Logistics

• Education

When Belkins might not be a good fit

Belkins focuses mainly on outbound lead generation, especially cold email. If you would like a different form of lead gen, you might want to try a different agency on the list.

They also may not be the best fit for B2C companies or businesses that rely heavily on inbound marketing strategies.

Belkins Review

Belkins has very good online reviews and is known for their good communication, organization, and ability to book qualified meetings. Many clients also mention that the onboarding process and reporting are very professional.

Cience – Multichannel outreach

Cience is one of the bigger players in the B2B lead gen space; you might consider them a good Callbox alternative, especially if you are looking for a large agency that handles multichannel outreach.

They offer inbound, outbound, cold calling, SDRs, go-to-market set-ups, and data solutions.

They also offer a mix of AI and human-led lead gen. Cience might be a good choice for companies of different sizes too, from startups to larger enterprise companies, and companies that need a mix of lead gen, but don’t want to use different agencies.

Who is CIENCE best for?

CIENCE is a good fit for B2B companies that want multiple outbound lead generation strategies with different outreach channels.

They are also a good choice for companies that need help with prospect data, list building, and outbound sales development.

Which industries does CIENCE work with?

• SaaS

• Technology

• Healthcare

• Manufacturing

• Finance

• Real estate

• Marketing

• Education

• Logistics

• Professional services

When CIENCE might not be a good fit

CIENCE focuses a lot on large campaigns that need to scale quickly. Because of this, you might always get the highest lead quality.

Their services may also feel too broad for some companies that only want one specific outreach channel, such as LinkedIn-only prospecting or cold calling.

CIENCE Review

CIENCE has mixed reviews online. Many clients mention that they liked the quality of the data, reporting, and outbound support.

Some companies also say they appreciated the ability to scale outreach quickly.

But some reviews mention that results can vary depending on the industry, offer, and campaign strategy.

Looking for a Callbox alternative?

…. Then any of the above companies will be a good fit depending on your needs. They have all been in the industry for a length of time, have good reviews, and case studies to back them up.

But if you would like to work with a founder-led agency that ensures your campaign is treated with expertise and the utmost care, reach out for a free 15-minute strategy session.

SalesBread is a b2b lead generation agency that specialises in LinkedIn lead generation and appointment setting agency, that gets their clients 1 lead per day.