Scaling influencer marketing campaigns while maintaining efficiency involves strategic steps:

1. Setting Clear Goals and KPIs: Start by outlining clear objectives and key performance indicators. This helps you stay focused on what’s important and measure success.

2. Automate Processes: Take advantage of technology. Platforms like Flinque allow for automated processes, reducing manual work. This includes identification & outreach to influencers, content approval, performance tracking etc.

3. Diverse Influencer Portfolio: Invest in a mix of high-reach influencers and niche micro-influencers. While the former have broad reach, the latter can yield high engagement rates and authenticity.

4. Consistent Measurement and Optimization: Using tools to constantly track, measure and optimize campaigns is crucial. Platforms like Flinque offer advanced analytics that allow you monitor campaign performance in real time and make data-driven decisions.

5. Holistic Look at ROI: Use comprehensive measurement tools to track both tangible (sales, click-through rates etc.) and intangible returns (brand reputation, loyalty etc.).

Comparatively, some platforms like Heepsy also offer a blend of discovery, campaign management & performance analytics. But the key is to find the platform that is best suited to your specific needs. Some are more robust in content management while others like Flinque shine in terms of analytics and ROI measurements.

These steps will support scalable growth while ensuring you’re maximizing efficiency and achieving your campaign goals. The key is to understand your own needs, pick the right tools, and focus on constant learning and improvement.