If I cannot find a co-founder. Is it okay to pay professionals to help take my start-up to the next level?

With all respect to Dan, I'm not seeing anything like that. You said "pre-revenue." If it's pre-revenue and enterprise, you don't have anything proven yet. You would have to have an insanely interesting story with a group of founders and execs on board with ridiculous competitive advantage built in. I have seen a few of those companies. It's more like $3m-$5m pre. Now, post-revenue is different. I've seen enterprise plays with $500k-$1m revenue/yr, still very early (because in the enterprise space that's not a lot of customers yet), getting $8m-$15m post in an A-round. I do agree there's no "average." Finally, you will hit the Series A Crunch issue, which is that for every company like yours with "cutting edge tech" as-yet-unproven, there's 10 which also have cutting edge tech except they have customers, revenue, etc.. So in this case, it's not a matter of valuation, but a matter of getting funded at all!

Greater risk = greater equity. How likely is this to fail or just break even? If you aren't receiving salary yet are among 4-6 non-founders with equivalent sweat investment, all of whom are lower on the totem pole than the two founders, figure out: 1) Taking into account all likely outcomes, what is the most likely outcome in terms of exit? (ex: $10MM.) Keep in mind that 90%+ of all tech startups fail (Allmand Law study), and of those that succeed 88% of M&A deals are under $100MM. Startups that exit at $1B+ are so rare they are called "unicorns"... so don't count on that, no matter how exciting it feels right now. 2) Figure out what 1% equity would give you in terms of payout for the most likely exit. For example, a $10MM exit would give you $100k for every 1% you own. 3) Decide what the chance is that the startup will fail / go bankrupt / get stuck at a $1MM business with no exit in sight. (According to Allman Law's study, 10% stay in business - and far fewer than that actually exit). 4) Multiply the % chance of success by the likely outcome if successful. Now each 1% of equity is worth $10k. You could get lucky and have it be worth millions, or it could be worth nothing. (With the hypothetical numbers I'm giving here, including the odds, you are working for $10k per 1% equity received if the most likely exit is $10MM and the % chance of failure is 90%.) 5) Come up with a vesting path. Commit to one year, get X equity at the end. If you were salaried, the path would be more like 4 years, but since it's free you deserve instant equity as long as you follow through for a reasonable period of time. 6) Assuming you get agreement in writing from the founders, what amount of $ would you take in exchange for 12 months of free work? Now multiply that by 2 to factor in the fact that the payout would be far down the road, and that there is risk. 7) What percentage share of equity would you need in order to equal that payout on exit? 8) Multiply that number by 2-3x to account for likely dilution over time. 9) If the founders aren't willing to give you that much equity in writing, then it's time to move on! If they are, then decide whether you're willing to take the risk in exchange for potentially big rewards (and of course, potentially empty pockets). It's a fascinating topic with a lot of speculation involved, so if you want to discuss in depth, set up a call with me on Clarity. Hope that helps!

My 2 favourite are: - www.uxpin.com - www.flinto.com Flinto is by far my favorite for mobile. I also us www.balsamiq.com for anything wireframe. Sometimes I jump into Sketch http://www.bohemiancoding.com/sketch/ for more high fidelity mockups using their Mirror feature http://www.bohemiancoding.com/sketch/mirror/ Hope that helps. P.S. There's a tonne of Mobile UX experts on Clarity, many $1/min - call them, you'll learn so much. my2cents.

10% of the total monthly sales churning on an absolute basis is near fatal. That means that within 5 months, you have 50% absolute churn per year, which reveals fundamental flaws with the service itself. Anything above small single digit churn is telling you and your team that customers are not seeing enough value in your product. I'd start by doing as many exit interviews as you can with those that have churned out, including, offers to reengage at a lower price-point while you fix the issues that matter to them. Happy to talk through this in more detail in a call.

100M+ in revenues in 5 years or less does not happen very often. As an example of one sector, here is an interesting data visualization (circa 2008) of the 100 largest publically traded software companies at that time that shows their actual revenue ramp-ups from SEC filings (only 4 out of these 100 successful companies managed this feat, which themselves are an extremely small percentage of all of the VC-funded software companies): How Long Does it Take to Build a Technology Empire? http://ipo-dashboards.com/wordpress/2009/08/how-long-does-it-take-to-build-a-technology-empire/ Key findings excerpted from the link above: "Only 28% of the nation’s most successful public software empires were rocketships. I’ve defined a rocket ship as a company that reached $50 million in annual sales in 6 years or less (this is the type of growth that typically appears in VC-funded business plans). A hot shot reaches $50m in 7 to 12 years. A slow burner takes 13 years or more. Interestingly, 50% of these companies took 9 or more years to reach $50m in revenue."