Top 100 Lead Generation Companies
The Best of December 2025Looking for a top lead generation company?
You have a good product but struggle to gain customers because the market is either saturated or dominated. Lead generation services will work wonders for you. Cold calling is not the only focus of lead generation companies. They provide many services, including content creation, blog posting, and social media outreach.
Working with a reliable service provider will give you the edge you need, and The Manifest is here to help you connect with them. We’ve listed the top lead generation companies, gathered their former clients’ testimonials, and curated their profiles for you.
List of the Best Lead Generation Services
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31$25,000+1,000 - 9,999 employeesSofia, BulgariaLarge Sales Outsourcing company MarketStar Bulgaria, is headquartered in Sofia, Bulgaria; Ogden, Utah; Salt Lake City, Utah and Dublin, Ireland. They specialize in Sales Outsourcing, Product Marketing, and Direct Marketing and were founded in 1988.Read More
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Progress SoftwareIndustries
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32$5,000+2 - 9 employeesKyiv, UkraineSales Outsourcing company Leadowski is headquartered in Kyiv, Ukraine; Middletown, Delaware and Warszawa, Poland. The agency focuses on Sales Outsourcing, Email Marketing, and Business Consulting and is small.The agency was founded in 2021.Read More
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33$25,000+50 - 249 employeesToronto, CanadaRead More
The Sales Factory is a Toronto, Canada-based Sales Outsourcing company. The midsize firm was founded in 2018. Their team offers Sales Outsourcing, Market Research, and Call Center Services.
Clients
Advanced Solutions International (ASI) Coldwell Banker Richard Ellis (CBRE) Claris Healthcare Focus FSIndustries
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34$1,000+50 - 249 employeesBerkeley, CARead More
Wing Assistant, a back office outsourcing company, was established in 2018. Their midsize team is located in Berkeley, California. Their services include back office outsourcing, customer service outsourcing, sales outsourcing, call center services, and more.
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35$5,000+10 - 49 employeesLondon, EnglandRead More
Novi.digital is a PPC company. Based in London, England; Lancaster, England; Manchester, England and Edinburgh, Scotland, their small team provides Pay Per Click, Sales Outsourcing, Social Media Marketing, Search Engine Optimization, and more. The firm was founded in 2009.
Clients
Carbon TrustIndustries
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36Undisclosed50 - 249 employeesDenver, CORead More
GenSales - B2B LeadGen is a lead generation and appointment setting company based in Denver. They were founded in 2002 and have a team of around 15 employees. Their services focus on voice services and digital strategy.
Clients
TUDI Mechancial SystemsIndustries
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37Undisclosed250 - 999 employeesRead More
Smith.ai is a virtual receptionist and lead intake services company located in Palo Alto, Calif. Founded in 2015, they employ over 100 staff specializing in live calls and website chat for small and mid-market companies, typically in legal, hospitality, finance, e-commerce, healthcare, and real estate. Services include AI chatbots, live chat, conversion optimization, and virtual receptionists.
Clients
Hacking Law PracticeIndustries
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38$1,000+2 - 9 employeesLondon, EnglandFriday Solved, a business consulting company, is based in London, United Kingdom. They offer business consulting, marketing strategy, content marketing, content writing services, and more and were established in 2018.Read More
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39$5,000+250 - 999 employeesDallas, TXRead More
MemoryBlue is a Sales Outsourcing company located in Dallas, Texas; Fleet, England and Singapore. The midsize team provides Sales Outsourcing, Call Center Services, Marketing Strategy, Digital Strategy, and more and was launched in 2002.
Industries
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40$25,000+10 - 49 employeesWilloughby, OHRead More
JMS Elite is a Sales Outsourcing company. They are based in Willoughby, Ohio and have a small team. Their services include Sales Outsourcing, Market Research, and Call Center Services.
Clients
Carl Zeiss AGIndustries
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41$5,000+250 - 999 employeesAustin, TXLaunched in 2006, EBQ is a midsize Sales Outsourcing company. Their team focuses on Sales Outsourcing, Email Marketing, CRM consulting and SI, Other Digital Marketing, and more. The company is based in Austin, Texas.Read More
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42$10,000+250 - 999 employeesNew York, NYExeco, a Back Office Outsourcing company, is in New York, New York; Taguig, Philippines; Pune, India and Nairobi, Kenya. The midsize firm was launched in 2020. Their team focuses on Back Office Outsourcing, Sales Outsourcing, Demand Generation Marketing, and Data Annotation Services.Read More
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43$1,000+50 - 249 employeesSugar Land, TXIdeasUnlimited is a midsize Customer Service Outsourcing company. The Sugar Land, Texas-based agency was founded in 2010. Their services include Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, Transcription, and more.Read More
Clients
TravelWifiIndustries
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44Undisclosed1,000 - 9,999 employeesMargate, FLRead More
Global Response is a contact center company based in Margate, Fla., that was established in 1974. Their team of more than 450 employees offers contact center services, inbound sales processing, order processing, chat support, email response, and social media support.
Clients
Crate&BarrelIndustries
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45$1,000+250 - 999 employeesAmsterdam, NetherlandsRead More
Launched in 2015, Pexly is a back office outsourcing company. The company specializes in back office outsourcing, customer service outsourcing, and sales outsourcing and has a midsize team. The company is in Amsterdam, Netherlands.
Industries
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46$5,000+50 - 249 employeesSalt Lake City, UTRead More
Launch Leads, an advertising company, was founded in 2009. The midsize team provides advertising, voice services, business consulting, marketing strategy, and more. The firm is in Salt Lake City, Utah and , .
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47Undisclosed250 - 999 employeesTorreón, MexicoRead More
Remote Team Solutions is an IT staff augmentation company launched in 2014. The midsize Reno, Nevada-based team provides IT staff augmentation, Call Center Services, Back Office Outsourcing, Customer Service Outsourcing, and more.
Clients
Now Prop Preservation LLCIndustries
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48$1,000+10 - 49 employeesEmail Marketing company Funel is based in London, England; Singapore; Toronto, Canada and New York, New York. They offer Email Marketing, Sales Outsourcing, Blockchain Marketing, and Web Development and were founded in 2012.Read More
Industries
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49$5,000+250 - 999 employeesMiami Beach, FLUassist.ME is a Back Office Outsourcing company. The Miami Beach, Florida-based agency was founded in 2009. The midsize team specializes in Back Office Outsourcing, Customer Service Outsourcing, Call Center Services, and Sales Outsourcing.Read More
Clients
FacebookIndustries
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50$1,000+50 - 249 employeesRead More
Market research company TaskDrive is based in Walnut, California. The midsize team offers market research, conversion optimization, CRM consulting and SI, digital strategy, and more. The company was launched in 2014.
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51$5,000+10 - 49 employeesRead More
Upcall is an outbound call service based in San Francisco. It was founded in 2016 and now has a team of around 20 that is exclusively dedicated to providing voice services.
Clients
LGIndustries
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52$1,000+1,000 - 9,999 employeesGurugram, IndiaRead More
MattsenKumar is a back office services provider based in Woodburn, Ore., with an office in Gurgaon, India. Founded in 2010, MattsenKumar's team of 364 employees offers voice/call center services and non-voice BPO/back office services.
Industries
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53$25,000+250 - 999 employeesUnboundB2B is a Content Marketing company. Their midsize team is in San Francisco, California and Wilmington, Delaware. The firm provides Content Marketing, Media Planning & Buying, Sales Outsourcing, Demand Generation Marketing, and more. The firm was founded in 2016.Read More
Industries
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54$1,000+10 - 49 employeesPearl Lemon is a SEO agency. The small team is headquartered in London, England; San Francisco, England and Manchester, England. Their services include Search Engine Optimization, Public Relations, Pay Per Click, Accounting, and more.Read More
Clients
Asteria DiamondsIndustries
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55$1,000+250 - 999 employeesPetaling Jaya, MalaysiaRead More
Headquartered in Petaling Jaya, Malaysia; Taipei City, Taiwan; Singapore and Gurugram, India, SummitNext is a Customer Service Outsourcing company. They focus on Customer Service Outsourcing, Artificial Intelligence, Sales Outsourcing, Call Center Services, and more and were launched in 2020.
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56$1,000+10 - 49 employeesPoltava, UkraineData Annotation Services company Tinkogroup was established in 2016. The small Poltava, Ukraine-based team provides Data Annotation Services, Back Office Outsourcing, Sales Outsourcing, and Document Digitization & Management.Read More
Clients
Oberst BV Continuum Education TodayIndustries
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57$1,000+10 - 49 employeesL'viv, UkraineBizZzdev is a small Sales Outsourcing company. The L'viv, Ukraine-based agency was founded in 2019. Their team provides Sales Outsourcing.Read More
Clients
BLISCORE Johnson&JohnsonIndustries
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58$5,000+10 - 49 employeesKyiv, UkraineSparklead is a Kyiv, Ukraine-based business consulting and sales outsourcing company. Founded in 2022, the small team offers business consulting and sales outsourcing.Read More
Clients
Ukrainian Association of Furniture ManufacturersIndustries
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59$10,000+250 - 999 employeesOverland Park, KSRead More
1840 & Company is a call center service launched in 2014. The midsize team focuses on call center services, sales outsourcing, customer service outsourcing, back office outsourcing, and more. The company is in Overland Park, Kansas and Makati, Philippines.
Clients
GrouponIndustries
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60$1,000+10 - 49 employeesPlano, TXLocated in Plano, Texas, Constructur is a marketing strategy company. Founded in 2021, the small team provides marketing strategy, call center services, back office outsourcing, and sales outsourcing.Read More
Industries
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