Several factors are making outsourcing the SDR/lead-gen function increasingly popular:

In the 2022 Tenbound + Operatix survey of 250+ tech / high-growth companies, 78.5% of respondents reported using an outsourced SDR agency. (Operatix)

From a market sizing perspective, the global “Outsourced SDR Services” market was valued at about US $2.29 billion in 2024, and is projected to grow to about US $5.8 billion by 2035 (CAGR ~8.8%). (WiseGuy Reports)

Key motivations include:

•The high turnover and ramp-time of internal SDR teams (e.g., “SDRs stay in role 12-18 months” per one provider) (keyoutreach)

•The need for faster time-to-pipeline/campaign launch, especially for companies scaling or entering new markets. (Prospecta Global Solutions)

•Cost and operational efficiency (avoiding recruitment, training, tools/licences, management overhead).

•Access to specialist SDR skills, data/tech, and scalable models without full in-house build-out. (Salaria Sales)

In short: the model is being adopted because it offers speed, flexibility, and cost leverage compared to building your own team from scratch.