I've been a manager working for telco companies so I know a bit about it. Usually the backlog is a good metric but it works from when you have already sold the product. Usually to assess what happens before the sales team is asked to assess the probability of closing the deal and discount the deal size by that probability. An increase of the scope (and of the total value) or of the probability to close the deal represents your metric. It is not very scientific but could be made pretty accurate. E.g: you know the price of your product and how much you are willing to give a discount in order to close the deal. Also, even if negotiation, especially with big companies, could be unpredictable, it is usually done in steps and each steps closer means an higher chance of success. A possible sequence of steps is: - RFI received. - RFI answered. - Q&A and first meeting - Follows Up - RFP received - RFP answered - First round of Q&A/meetings - Short Listed - Second round of Q&A/meetings - Product demo - Final negotiation (usually price and conditions) This is the process for RFI, there's a different one (and a little bit more complex) for "cold calls" that probably is more applicable to startups. Obviously some steps are optional and the names could changes but this is how it works. Just a final note, though. If you are a startup in B2B avoid, at the beginning at least, big corporation as client if you can. They have a huge negotiation power, they will drive down your price like crazy and being your biggest client they will use their force to ask you a lot of extra work than the one negotiated. You will end up loosing a lot of money on the deal and also you will have little ability to follows other deals. Yes, they are useful to qualify for other clients and if you lock them in they could be quite profitable, but unless you have deep pocket they will crash your company.