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

money moves

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.

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

Houston ranks among 15 U.S. hot spots for women in tech

Ranking It

Houston is soaring among the best places in the U.S. for women in tech, a new report says. Houston ranked No. 15 nationwide in SmartAsset's new report, "Best and Worst Cities for Women in Tech — 2026 Study," which compared the 50 biggest U.S. cities across four metrics:

  • Gender pay gap — women's median earnings as a percentage of men’s median earnings in tech
  • The share of all tech workers that are women
  • The overall concentration of employment for tech workers, defined as "tech workers as a share of the local workforce"
  • Women tech workers’ median earnings, adjusted for regional price parity
For the purpose of the study, tech workers are defined as "city residents employed in computer and mathematical occupations." The study's findings show that fewer than 9,500 tech workers in Houston are women, or 25.6 percent of the total tech workforce in the city. In total, tech workers in general make up less than 3 percent of the Houston workforce.Despite the high ranking, women tech workers in Houston have a sizeable gap to cross to receive equal pay compared to their male counterparts in the same industry. Women tech workers make just over $97,000 in median earnings after adjusting for regional price parity, which is only 93 percent of what male tech workers make, SmartAsset found.

There are only two U.S. cities where women in tech earn more than what their male counterparts: Miami and Memphis, Tennessee. Women tech workers in Miami make an adjusted $88,650 in median earnings, or 101.7 percent of what men in tech make. In Memphis, women make $84,718 in adjusted earnings, or 101.5 percent of what men in tech earn.

The findings also assert that women remain underrepresented in the nation's overall tech sector, despite making up nearly half of the total workforce. Only 22.6 percent of the country's tech labor force is made up of women, according to the Equal Employment Opportunity Commission."Opportunities for women in tech can vary considerably by location, and these differences shape access to jobs, career advancement and earning potential," the report's author wrote. "In some places, women account for a larger share of tech workers, face narrower pay gaps and enjoy a stronger local labor market. In others, they may encounter a more challenging career environmentThe six other Texas cities that earned spots in the report are Austin (No. 6), Fort Worth (No. 26), Dallas (No. 32), Arlington (No. 38), San Antonio (No. 42), and El Paso (No. 49).

The top 10 best U.S. cities for women in tech are:

  • No. 1 – San Jose, California
  • No. 2 – Seattle, Washington
  • No. 3 – San Francisco, California
  • No. 4 – Atlanta, Georgia
  • No. 5 – Baltimore, Maryland
  • No. 6 – Austin, Texas
  • No. 7 – Oakland, California
  • No. 8 – Portland, Oregon
  • No. 9 – Boston, Massachusetts
  • No. 10 – Minneapolis, Minnesota
---

This article first appeared on CultureMap.com.

2026 Houston Innovation Awards finalists revealed and more top stories

Trending News

Editor's note: The top Houston innovation news for the first half of October celebrates the finalists for our sixth annual awards program. Plus, Rice launches a new venture fund and an energy AI company picks Houston for its first U.S. office. Here are the five most-read stories published October 1-15, 2026:

Announcing the 2026 Houston Innovation Awards finalists

InnovationMap is proud to reveal the finalists for the 2026 Houston Innovation Awards. The sixth annual Houston Innovation Awards program returns in an all-digital format this fall to honor the best of Houston's innovation ecosystem, including startups, entrepreneurs, mentors, and more. Get to know our finalists in more detail through editorial spotlights on InnovationMap.com leading up to the winner announcement in mid-November. Continue reading.

Meet the esteemed judges for the 2026 Houston Innovation Awards

Our 2026 Houston Innovation Awards judging panel comprises past award winners who represent a variety of industries and areas of expertise. They are joined by InnovationMap's interim editor. All are deeply engaged in the Houston innovation ecosystem. Continue reading.

Energy AI company opens first U.S. office at Houston's the Ion

Building on its partnership with Houston-based oilfield services provider Halliburton, energy-sector AI company Shape Digital recently opened an office at The Ion. It’s the company’s first U.S. location. Shape Digital’s workforce in Houston includes employees specializing in tech support, business development and client services. The company’s local hiring projections and headcount weren’t available. The new office will be located within Industrious at the Ion, according to Rice Alliance. Continue reading.

Rice University launches new venture fund for university-affiliated startups

Rice University has launched its new One Giant Leap Ventures Fund I, which will invest in the university’s spinouts and alumni-founded startups. The early-stage institutional venture fund will function with a hybrid structure that allows for participation from traditional equity investors and philanthropic investors. According to the university, the fund will invest up to $500,000 per Rice-affiliated company. To be considered eligible for funds, companies must use intellectual property licensed by the university or be led or founded by alumni. Continue reading.

Here’s where wages grew the most in Houston since 2021, according to new report

Bolstered by a thriving manufacturing sector, Waller County—the country’s second-fastest-growing county—leads all Houston-area counties for the growth of pay from 2021 to 2026, according to a new study. The study, conducted by personal finance website SmartAsset, found average pay in Waller County rose 48 percent from 2021 to 2026. The county’s average weekly pay climbed from $891 to $1,323 during that period. Continue reading.

5 female-founded Houston startups shine as Innovation Awards finalists

meet the finalists

Houston is home to many standout female founders, making inroads and breakthroughs in every industry.

As part of the 2026 Houston Innovation Awards, our Female-founded Business category honors women-led startups that are shaping Houston innovation.

Five female-founded businesses have been named finalists for the 2026 award. This year's finalists, selected by our esteemed panel of judges, range from an AI startup for C-Suite execs to a company developing semi-autonomous crawler robots for corrosion detection.

Read more about these innovative startups and the visionary female founders behind them below. The 2026 winners will be announced on InnovationMap.com in mid-November.

Adair

Artificial intelligence startup Adair uses computational linguistics and behavioral economics to measure, model and quantify the impact of spoken and written language on firm valuation and stock prices. The company works with C-Suite executives of public companies on high-stakes communications before they go live.

The company was founded last year by CEO Kathleen Perley, CPO Alex Duong and CTO Anthony Grivet. It raised $5.6 million earlier this year, according to its application.

ARIX Technologies

Energytech startup ARIX Technologies has developed a semiautonomous VENUS crawler robot to detect corrosion under insulation before it becomes a failure. The robots climb insulated piping in refineries, chemical plants and energy facilities to capture inspection data without removing insulation or building scaffolding. ARIX's inspection portal then turns information from the inspection into data a company can act on.

ARIX was founded in 2017 by Dianna Liu, who serves as director, and Head of Product Petter Wehlin. Craig Malloy serves as CEO. The company has raised more than $22 million in seed funding and a Series A round, according to its application.

Bairitone Health

Healthtech startup Bairitone Health is bringing anatomy imaging for sleep apnea to the home environment. The company's platform maps users' anatomy during natural sleep using a facial patch to determine the root cause of airway obstruction. It then offers effective therapies for each patient.

The company was founded in 2022 in the Texas Medical Center's Biodesign program by CEO Meagan Pitcher, CTO Onur Kilic and chief medical officer Britt Cross. It was a member of Activate Houston's inaugural cohort and has participated in numerous accelerators and incubators. The company raised an oversubscribed seed round for $2.4 million earlier this year and received Breakthrough Device Designation from the Food and Drug Administration in April.

FlowCellutions

Energytech startup FlowCellutions is developing a chemistry-agnostic diagnostics platform for flow and metal-air batteries supporting data centers and critical infrastructure. The platform is designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from approximately seven years to more than 30 years. It has deployed four paid pilots and plans to take insights from the programs to develop its next-gen sensor platform technology.

CEO Becca Segel founded the company in 2022. It is a member of Greentown Labs, and Segel was a 2025 Activate Fellow. The company has raised over $2 million in non-dilutive funding and received a $1.5 million NSF SBIR Fast-Track award earlier this year.

ParaDocs Health

Healthtech startup ParaDocs Health is developing a clinical intelligence platform that helps doctors and care teams streamline administrative tasks and make better use of patient records. Its technology organizes fragmented clinical data into actionable insights, helping care teams identify gaps in care, assess patient risks and simplify documentation and reimbursement.

ParaDocs was founded in 2022 by CEO Dr. Dhini Nasution and CTO Dr. Omar Mohtar. The company participated in the TMCi Biodesign Program and raised a preseed round last year, according to its application.

View All Listings