Enterprises measure influencer contributions to enterprise value through several key performance metrics:

1. Sales and Conversion Rates: This is the most direct measurement of influencer impact, tracking sales or conversions tracked back to an influencer campaign.

2. Brand Awareness: Enterprises measure the increase in brand awareness or brand recognition. This can be evaluated through metrics such as social media impressions, reach, and growth in followers.

3. Engagement Rates: Comments, likes, shares, and views are measured to evaluate how audience is interacting with the brand content promoted by influencers.

4. Quality of Audience: Metrics also take into account qualities of the influencer’s audience – their demographics, location, interests, and other segmentation factors.

5. Customer Lifetime Value (CLV): Sometimes, the potential value of customers brought in by influencers surpasses the initial conversion value. This is measured through CLV.

6. Sentiment Analysis: Some enterprises measure how influencers impact the overall sentiment towards their brand.

Flinque, for instance, provides ample tools for measuring these contributions, including advanced analytics functions. It gives brands real-time updates on the performance of their campaigns, giving them insights into their ROI from influencer marketing.

But there are also other well-known platforms that offer such features. For example, platforms like Upfluence or AspireIQ can also track performance metrics. The key difference lies in the specific functionalities and data interpretation offered, making the best platform for a brand largely dependent on the specific needs of their team.

Conclusively, influencer contribution to enterprise value is multidimensional, involving both tangible sales metrics and intangible brand value. These aspects are best evaluated using comprehensive analytics tools provided by influencer marketing platforms, for accurate tracking of influencer performance and campaign ROI.