Houston software co. secures $39M in financing, launches latest product upgrade

fresh funding

Graylog, a Houston SaaS company, has new fuel to scale and develop its product. Photo via Getty Images

A Houston software-as-a-service company has secured $39 million in financing and announced its latest upgrade to its platform.

Graylog, which has created an innovative platform for cybersecurity and IT operations, raised equity funding with participation from new investor Silver Lake Waterman and existing investors Piper Sandler Merchant Banking and Harbert Growth Partners leading the round.

“The growth we are seeing globally is a response to our team’s focus on innovation, a superior user experience, low total cost of ownership, and strong execution from our Go-To-Market and Customer Success teams,” Andy Grolnick, CEO of Graylog, says in a news release. “We expect this momentum to continue as Graylog expands its reach and raises its profile in the security market.”

Grolnick tells TechCrunch that the financing includes $9 million in a series C extension round and $30 million in “flex debt.” The company closed its series C in 2021.

In its news release, Graylog reported a 67 percent increase in new bookings as of last quarter. The company also reported the acquisition of Resurface.io’s API security platform in July, growth in Europe and Asia Pacific, and availability on AWS Marketplace among its list of recent growth opportunities.

“Graylog’s solid growth underscores the strength of the extensible Threat Detection & Incident Response platform the team has built to help customers detect and respond to cybersecurity threats and leverage advanced log management for operational effectiveness,” Shawn O’Neill, managing director and group head of Silver Lake Waterman, says in the release. “We look forward to partnering with Graylog to help enable their continued success.”

The financing was announced October 31, and today, November 1, Graylog announced version 5.2 of its platform technology for its users.

The company plans to use its funding on product development and differentiation, scaling, and as a bridge to profitability, which Grolnick tells TechCrunch is just around the corner.

“Graylog’s product-led growth model, combined with its focus on customer success, continues to be an attractive combination that bodes well for its future," Bob Rinek, managing director with Piper Sandler Merchant Banking, says in the release. "We’re also excited about Graylog’s expansion into the API Security space to help its customers defend this vulnerable attack surface."

Originally founded in 2009 by Lennart Koopmann as an open source project, Houston-based VC firm Mercury invested in the company in 2014. Grolnick has served as CEO since 2020.

Houston-based Graylog announced new financing as well as a new version of its software this week. Photo via graylog.org

Houston-based data management startup Graylog has fresh funds to fuel its growth. Photo via Graylog.org

Houston data management company closes $18M in fresh funding

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A Houston company that's created a centralized log management solution has closed a new round in funding.

Graylog closed its $18 million growth equity round led by Richmond, Virginia-based Harbert Growth Partners, a new investor, and Minneapolis, Minnesota-based Piper Sandler Merchant Banking, the company announced today. The round also received contribution from existing investors Houston-based Mercury Fund and Integr8d Capital, as well as Germany-based HTGF.

"This investment will enable us to accelerate our global go-to-market strategies and enhancements to the award-winning solutions we deliver for IT, DevOps, and Security teams," says Andy Grolnick, CEO of Graylog, in a press release. "We're excited to have the support of new and existing investor partners to help us realize our potential."

Andy Grolnick is CEO of Graylog. Photo courtesy

Per the release, the funds will go toward growing the company's platform that allows its users the ability to capture, store, and enable real-time analysis of terabytes of machine data.

"Graylog is well-positioned to be a long-term winner in the rapidly growing market for log management and analysis solutions," says Brian Carney, general partner of Harbert Growth Partners, in the release. "With its focus on delivering a superior analyst experience coupled with a vibrant Open Source community, the company provides customers a compelling alternative to other log management solutions plagued with high complexity and high total cost of ownership (TCO). We are thrilled to partner with the Graylog team to leverage the significant opportunity that lies ahead for the company."

Over the past year, despite the challenging business climate, the company saw growth in business and even expanded its European operations, according to the release.

"As a long-standing customer, Graylog is strategic to our success. We are excited to see new investment that will enable the company to accelerate innovation and continue to deliver excellent log management and SIEM solutions," says Rob Reiner, CTO of PROS, in the release.

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Houston-founded startup raises $1.2M and moves headquarters to Detroit

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Houston-founded ChurchSpace, known as the Airbnb for churches, has formed an official partnership with the City of Detroit and will relocate its headquarters.

The announcements come as the company successfully closed a $1.2 million oversubscribed funding round. The round was led by California-based Black Ops Ventures, with participation from Michigan Rise and Dug Song of Minor Capital, who is also the founder of the Song Foundation, another Michigan-based organization.

"This raise is more than a business milestone—it's a testament to what happens when strategy meets faith. In today's climate, raising capital takes grit and resilience—especially without deep networks or traditional access. By God's grace, doors have opened, and our mission is clearer than ever. Now, with capital in hand, we're building boldly toward a future where the Church isn't just surviving—but leading community transformation," Emmanuel Brown, co-founder and CEO of ChurchSpace, said in a statement.

In Detroit, ChurchSpace plans to activate underutilized church campuses as micro-logistics spaces for food distribution and retail partnerships, as well as last-mile delivery centers. To kick off its relocation, ChurchSpace will host a Detroit Pastor Meetup on July 19.

"We welcome ChurchSpace's investment in Detroit and the jobs and innovation it will bring," Detroit Mayor Mike Duggan added in the release. "Our faith community has long been a critical backbone of our neighborhoods. Through ChurchSpace's groundbreaking work, they will continue to be anchors of opportunity and resilience in our city's future."

ChurchSpace was originally founded to convert underutilized church real estate into event, meeting and commercial kitchen space to boost revenue and relieve financial burden while remaining compliant with IRS regulations for non-profits. The company participated in the inaugural cohort of the AWS Impact Accelerator for Black Founders, which included a pre-seed fundraising campaign and a $125,000 equity injection from Amazon in 2022. It was also one of two Houston companies to receive $100,000 as part of the Google for Startups Black Founders Fund that same year.

The company reports that its platform in Texas has generated up to $100,000 annually in new revenue that was reinvested into church ministries, food programs and community initiatives.

"What we built in Houston was more than technology—it was transformation. We expanded our purpose and packaged proven strategies to help churches thrive, transform communities, and even combat food insecurity," Day Edwards, co-founder and president of ChurchSpace, added in the statement. "Now, with prayer and the support of our team and investors, we're bringing that same impact to Detroit—to help churches, communities, and small businesses redefine pulpits and rediscover communal possibilities."

Houston space tech co. lands millions and more innovation news to know

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Editor's note: It's time to recap the top innovation news for the first half of May 2025. Our five most-read stories from May 1-15 include updates from Intuitive Machines and The Ion. Plus, driverless trucks hit the road from Houston to Dallas. Get all of the details below.

1. Houston space tech leader lands up to $10 million for Earth re-entry vehicle and lab

The Texas Space Commission has selected Houston's Intuitive Machines to develop a vehicle that will return lunar samples to Earth, along with an orbital fabrication lab. Photo courtesy Intuitive Machines.

Houston-based space technology, infrastructure, and services company Intuitive Machines has been awarded a state grant of up to $10 million to help develop an Earth re-entry vehicle and in-space biomanufacturing lab. The Texas Space Commission approved the grant, which is coming from the state’s Space Exploration and Research Fund. Intuitive Machines says the money will support its “critical risk-reduction platform” for returning lunar samples to Earth. The funding will go toward an early 12-month phase of the project. Continue reading.

2. 9 can't-miss Houston business and innovation events for May

Don't miss these May events — from an investor activation series to a crawfish cook-off. Photo courtesy Greentown Labs.

There's a lot to learn this month at events around Houston. Hear from AI and energy experts or gain insights into how to tap into funding at informative panels or sessions. Continue reading.

3. Autonomous truck company rolls out driverless Houston-Dallas route

Aurora began regular driverless deliveries between Houston and Dallas on April 27. Photo courtesy Aurora.

Houston is helping drive the evolution of self-driving freight trucks. In October, Aurora opened a more than 90,000-square-foot terminal at a Fallbrook Drive logistics hub in northwest Houston to support the launch of its first “lane” for driverless trucks—a Houston-to-Dallas route on the Interstate 45 corridor. Aurora opened its Dallas-area terminal in April and the company began regular driverless customer deliveries between the two Texas cities on April 27. Continue reading.

4. Texas-based 'DoorDash for laundry' startup tumbles into Houston market

The service has been a smash success in Austin. Courtesy photo

Laundry may seem like an endless task that piles up, but a new service offers a solution to overwhelmed Houston families. NoScrubs, an Austin-based home laundry pickup service has just expanded to Houston. Described by the company as "DoorDash — but for laundry," they wash customer's clothes at local laundromats and return them the same day, folded and ready to be put away. The service took off like gangbusters in Austin, making an expansion to the state's largest city an obvious choice. Continue reading.

5. New energy innovation and coworking spaces open at the Ion

The Oxy Innovation Center has opened at the Ion and Industrious' coworking space launches soon. Photo courtesy of The Ion

Houston-based Occidental officially opened its new Oxy Innovation Center with a ribbon cutting at the Ion. The opening reflects Oxy and the Ion's "shared commitment to advancing technology and accelerating a lower-carbon future," according to an announcement from the Ion. Oxy, which was named a corporate partner of the Ion in 2023, now has nearly 6,500 square feet on the fourth floor of the Ion. Rice University and the Rice Real Estate Company announced the lease of the additional space last year, along with agreements with Fathom Fund and Activate. Continue reading.

Houston healthtech leader launches clinical trial for innovative anxiety-treating device

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Houston-based Nexalin Technology’s proprietary neurostimulation device will move forward with a new clinical trial evaluating its treatment of anxiety disorders and chronic insomnia in Brazil.

The first of Nexalin’s Gen-2 15-milliamp neurostimulation devices have been shipped to São Paulo, Brazil, and the study will be conducted at the Instituto de Psiquiatria university hospital (IPq-HCFMUSP). The shipments aim to support the launch of a Phase II clinical trial in adult patients suffering from anxiety and insomnia, according to a news release.

“Brazil is an important emerging market for mental health innovation, and this collaboration marks our first IRB-approved study in the region,” Mike White, CEO of Nexalin, said in the release.

The study will be led by Dr. Andre Russowsky Brunoni, who specializes in neuromodulation and interventional psychiatry. He currently serves as director of the interventional psychiatry division at IPq-HCFMUSP and this summer will join UT Southwestern in Dallas and its Peter O’Donnell Jr. Brain Institute as a professor of psychiatry.

The Phase II study plans to enroll 30 adults in São Paulo and assess the efficacy of Nexalin’s non-invasive deep intracranial frequency stimulation (DIFS™) of the brain in reducing anxiety symptoms and improving sleep quality, according to the company. Using the Hamilton Anxiety Rating Scale (HAM-A), the trial’s goal is a reduction in anxiety symptoms, and assessments of sleep onset latency, total sleep time, overall sleep quality, depressive symptoms and clinical impression of improvement. The company plans to share results in a peer-reviewed scientific journal.

“Anxiety and insomnia are very common conditions that often occur together and cause significant distress,” Brunoni added in the news release. “In this study, we are testing a new, non-invasive brain stimulation technology that has shown promising results in recent research. Our goal is to offer a safe, painless, and accessible alternative to improve people’s well being and sleep quality.”

The Nexalin Gen-2 15-milliamp neurostimulation device has been approved in China, Brazil, and Oman.

The company also enrolled the first patients in its clinical trial at the University of California, San Diego, in collaboration with the VA San Diego Healthcare System for its Nexalin HALO, which looks to treat mild traumatic brain injury and post-traumatic stress disorder in military personnel and the civilian population. It also recently raised $5 million through a public stock offering. Read more here.

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