Customer churn is inevitable, but it's what you do with the opportunity that matters. Miguel Tovar/University of Houston

Think of customer churn as a robust balloon, ready to touch the sky as soon as you let go. Every day you hold on to that balloon, air molecules will diffuse through the knot. Your balloon will become flabby. This exodus of air is known in business as a churn. Customer churn is the amount of customers that your company loses during a specific time frame. Canceled subscribers, dissatisfied clientele, or customers that just found a better alternative. Keeping track of churn is a vital part of your company's continued growth. Doing so will give you the brutal truth regarding customer retention.

It's difficult to measure the success of your startup without keeping track and analyzing your shortcomings as well. Sure, you want 100 percent customer retention. But even a company that has figured out how to stop the aging process will not have such an unrealistic rate. Losing customers is part of the game. However, you don't have to let it kill your company. You can learn from it.

Measuring customer churn rate

You can measure your churn rate by subtracting lost patronage from the number of customers you had to start a period. So, if you started off the month or quarter with 1,000 customers, and end up with 500 at the end of that period, your churn rate is 50 percent. You lost 50 percent of your customers. Ouch. Unless your company decides to go into selling raincoats in the Sahara, it is doubtful your churn rate will be that high. But you understand how it's calculated now.

So, why is customer churn so important? Well, for starters, the cost of acquiring new customers is 25 times higher than the cost of retaining the ones you already have. Further, research has determined that a mere five percent rise in retention rates can boost profits upwards of 25 percent.

Curb your churn

There are a few ways to curb customer churn.

One way is to concentrate on your most loyal customers. One of the biggest gripes against Comcast is that they offer so many special rates to new customers, and almost nothing for their long-time customers. The same was said about Uber until they recently launched Uber Gold. How many "special deals for first time customers" do you see with phone service companies? Tons. It would be more advantageous to focus your resources on your loyal customers. Give them another reason to stay. After all, as we just covered, it's cheaper for your company to retain them than to get new customers.

Another way to reduce churn rates is to track and analyze it every fiscal quarter. This analysis can help you understand why exactly customers are leaving. You can even detect patterns to show at what point in their patronage they are leaving. All this data can be used to make better decisions about improving your company's services or products.

Listen to fleeing customers

Speaking of making better decisions for your company, the best way to do that is to talk to the customer. When you were in high school, you probably had "intel" on your crushes to see if they liked you back. You probably spent months agonizing over what they meant by this text or that comment. In retrospect, you probably now know it would have been so much easier to just ask. Letting the customer be your compass will steer your company in the right direction. Lapsed customers will almost always be honest with you. What have they got to lose? They will tell you straight up what they didn't like and why they didn't like it. With a large enough sample size, you'll soon have a good idea about what you could be doing better to keep your current customers from fleeing your company like it's Blockbuster. No offense to Blockbuster.

In summary, keeping the customers you have is just as important as winning over new ones. It's harder to put air into an already knotted balloon than it is to just keep the air it already has inside. If you focus on keeping your customers, much like that air-filled balloon, sky's the limit.

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This article originally appeared on the University of Houston's The Big Idea.

Rene Cantu is the writer and editor at UH Division of Research.

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Venus Aerospace picks up investment from Lockheed Martin Ventures

space funding

Venus Aerospace, a Houston-based startup specializing in next-generation rocket engine propulsion, has received funding from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, for an undisclosed amount. The product lineup at Lockheed Martin includes rockets.

The investment follows Venus’ successful high-thrust test flight of its rotating detonation rocket engine (RDRE) in May. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

Venus says the Lockheed Martin Ventures investment reflects the potential of Venus’ dual-use technology for defense and commercial uses.

“Venus has proven in flight the most efficient rocket engine technology in history,” Venus co-founder and CEO Sassie Duggleby, a board member of the Texas Space Commission, said in a news release. “With support from Lockheed Martin Ventures, we will advance our capabilities to deliver at scale and deploy the engine that will power the next 50 years of defense, space, and commercial high-speed aviation.”

Chris Moran, executive director and general manager of Lockheed Martin Ventures, said Lockheed Martin has been a longtime supporter of early-stage “transformational” technologies.

“Our investment in Venus Aerospace reflects a conviction that next-generation propulsion will define which nations lead in space and defense for decades to come,” Moran added in the release. “We are committed to helping Venus scale this technology and integrate it into critical systems.”

Since its founding in 2020, Venus has secured more than $106 million in funding. In addition to Lockheed Martin Ventures, investors include Airbus Ventures, America’s Frontier Fund, Trousdale Ventures, and Prime Movers Lab. Supporters of Venus include NASA, the Air Force Research Lab and the Defense Advanced Research Projects Agency (DARPA).

8+ can't-miss Houston business and innovation events for November

where to be

Editor's note: Houston’s innovation calendar is packed this November, with opportunities to connect across climatetech, health care and entrepreneurship. From Greentown Labs’ flagship summit and veteran-led showcases to discussions on medical innovation and startup growth, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Nov. 4 – Greentown Climatetech Summit

Greentown Labs' Climatetech Summit Houston will bring together philanthropists, executives and innovators in the energy transition space. Expect to hear from John Arnold, co-founder and co-chair of Arnold Ventures, and Greentown CEO Georgina Campbell Flatter, who will participate in the day-long event’s keynote fireside chat, along with remarks from Houston Mayor John Whitmire, a course led by TEX-E Executive Director Sandy Guitar and more. Ten Greentown Labs startups will present pitches, and attendees will also be able to meet founders and Greentown members during the afternoon startup showcase.

This event is Tuesday, Nov. 4, from 8 a.m.-4:30 p.m. at Greentown Labs. A networking reception follows from 5-7:30 p.m. at Axelrad Houston. Learn more here.

Nov. 11 – Veterans & Visionaries

Houston Veteran Network will celebrate the entrepreneurial spirit of veterans at its Veterans & Visionaries event. Veteran business owners will have the opportunity to showcase their businesses, connect with investors and participate in speed networking.

This event is Tuesday, Nov. 11, from 2-7 p.m. at the Ion. Find more information here.

Nov. 12 – Energy Drone and Robotics Forum

The Energy Drone + Robotics Coalition will offer a chance for industry leaders, operators and engineers to connect. Attendees will explore real-world uses, hear lessons from successful deployments, and gain practical insights and tools for scaling through various workshops, keynote addresses, Q&As and more.

This event is Wednesday, Nov. 12, from 8 a.m.-5:30 p.m. at the Ion. A Bots & Brews / Industrial AI Connect Reception will be held at Second Daught from 5:30-7:30 p.m. Find more information here.

Nov. 12 – TMC Envision 2025: Showcasing Healthcare Innovation

Celebrate 10 years of TMC Innovation at Envision, which shines a light on how TMC’s health tech companies are shaping the future. The event will feature talks from TMC’s Devin Dunn, Jason Sakamoto and Tom Luby that will focus on hospital innovation, health care policies, Texas-specific funding and regulatory dynamics and more.

This event is Wednesday, Nov. 12, from 3:30-6:30 p.m. at TMC Innovation Factory. Find more information here.

Nov. 13 — 2025 Houston Innovation Awards

Join InnovationMap at Greentown Labs on Nov. 13 for the fifth annual Houston Innovation Awards. Our annual celebration of all things Houston innovation offers an exclusive opportunity to network with leaders in the innovation ecosystem and culminates in the awards ceremony, where this year's winners across 10 prestigious categories will be unveiled. Individual tickets and corporate 10-packs with reserved seating are still available.

This event is Thursday, Nov. 13 at 7 p.m. at Greentown Labs. Get your tickets here.

Nov. 13 – Houston Methodist Leadership Speaker series

Head to the Houston Methodist Tech Hub at Ion to hear the latest installment of the Houston Methodist Leadership Speaker Series. The month’s event will feature Dr. Shlomit Schaal, executive vice president and chief physician executive at Houston Methodist. She is also the president and CEO of the Houston Methodist Physician Organization. Schaal will focus on physician group innovation.

This event is Thursday, Nov. 13, from 4:45-6 p.m. at the Ion. Find more information here.

Nov. 18 – Rice Customer-based Strategy Symposium

Rice University’s Jones Graduate School of Business will present this recurring forum for exchanging innovative ideas on customer-centered strategy planning and execution. The symposium features peer-reviewed research from leading academics with industry trends and insights from executives. Hear from Jones School Dean Peter Rodriguez, Harris County Sheriff Ed Gonzalez, Laura Lopez, SVP of marketing, communications and public relations at Houston Methodist; Farid Virani, CEO of Prime Communications; and several Rice MBA graduates and executives.

This event is Tuesday, Nov. 18, 2025, from 7:30 a.m.-3:00 p.m. at the Ion. Learn more here.

Nov. 20 – Houston Startup Speedrun

Wade Pinder, founder of Product Houston, will host the Houston Startup Speedrun. This intensive and fast-paced program is designed to provide early-stage founders and aspiring entrepreneurs with a comprehensive understanding of the “Startup Founder's Journey” and the Houston startup ecosystem. The event is broken up into 10 consecutive 50-minute sessions, including topics such as “Creating a Compelling Business Plan,” “Operations and Scaling” and others.

This event is Thursday, Nov. 20, from 9 a.m.-7 p.m. at the Ion. Find more information here.

Nov. 20 – State of the Texas Medical Center

The Greater Houston Partnership will present the State of the Texas Medical Center. Hear from William F. McKeon, president and CEO of TMC, and GHP president and CEO Steve Kean as they discuss “the tremendous progress happening in health care delivery and life sciences in the world’s largest medical center.”

This event is Thursday, Nov. 20, from 4-6:30 p.m. at Helix Park. Find more information here.