President | Principal In Charge

'There are far, far better things ahead than any we leave behind.' - C.S. Lewis

Lisa Osborne | Collaborative Engineering Group


In keeping with her family’s tradition, Lisa attended The University of Texas at Austin earning a Bachelor of Science in Mechanical Engineering.  Inspired by Dr. Jerold Jones to apply her education to HVAC design, she has always enjoyed the challenge of integrating MEP systems into architecture.  Her commitment to a collaborative design team approach results in functional AND beautiful projects.  As a LEED Accredited Professional she has a passion for energy efficiency and sustainable design.

As a founding partner of CEG, Lisa relies on her strong faith to direct the way in which she conducts business.  She is committed to customer service, attention to detail and thrives on complex projects.  After over 30 years in practice, Lisa is enthusiastic about training the next generation of engineers and joined the Texas A&M Architectural Engineering Industry Advisory Board in 2019.

Away from the office, she’s enjoys outdoor sports such as snow skiing, hiking and scuba diving.  Of course, if its football season she will be watching the Longhorns!  Lisa has two grown children, a son Sean and a daughter Shannon.


Executive Vice President

"All our dreams can come true, if we have the courage to pursue them." - Walt Disney

Kristin Rickett | Collaborative Engineering Group


After working together for almost 20 years, a colleague and close friend, Lisa Osborne, invited Kristin to take a leap of faith and start a MEP firm and in June of 2010 Collaborative Engineering Group was born.

Building upon her more than 30 years of administrative experience in the MEP Consulting Engineering industry, Kristin serves as the Chief Operations Officer focusing on Business Development and Client Relations. She oversees the day-to-day operations of CEG and builds, develops, and maintains relationships with clients. Utilizing her ability to recognize and understand business opportunities, she develops the firm’s business development strategies.

Kristin is actively involved in the Women Business Enterprise Alliance, CoreNet and POWER (Professional Organization of Women Entrepreneurs Rising).

Married to Ken with daughter Kendall, she resides in the Tomball area with their Golden Retrievers Sandy and Scout.  Outside of work, you will find Kristin with family and friends, traveling, loving life and enjoying a nice bottle of wine.



Vice President of Engineering

"I believe every human has a finite number of heartbeats. I don't intend to waste any of mine." - Neil Armstrong

Andy Solberg | Collaborative Engineering Group


A Rice University graduate with two degrees, Mechanical Engineering and Physics, As the Vice President of Engineering, Andy coordinates all engineering disciplines for CEG. He brings 28 years of experience in the MEP industry on a variety of projects with particular expertise in healthcare and laboratory systems. Andy’s mission is to provide the highest quality documentation through purposeful coordination among all disciplines and implementation of a rigorous quality control process.  He is a member of ASHRAE, ASPE, and is a LEED Accredited Professional.

Andy is an avid player of games.  He plays a lot of cards and enjoys losing money at poker; winning is also acceptable.  He organizes an annual board game convention at Rice that benefits Houston area charities.  He also enjoys driving around Texas, and he takes a picture of every historical marker he passes.  Andy's two children are now old enough that he can devote more of his time to spoiling two tiny and loud-mouthed dogs.



Vice President/Electrical Department Director

Kevin Schmidt | Collaborative Engineering Group


With 19 years of experience, Kevin joined CEG as the Electrical Department Director.  Kevin graduated from Kansas State University with a Bachelor of Science in Architectural Engineering. He was drawn to his electrical engineering classes, so he started his engineering career in electrical design and never looked back.  Kevin has worked on a variety of projects including healthcare, laboratory, government facilities, commercial, data centers, light industrial, and office projects. Kevin is a meticulous engineer whose attention to detail is unrivaled. He strives to provide our clients with the highest quality work and takes pride in everything he puts his hand to. 

Kevin is an avid cyclist and runner. He has completed 14 MS 150 bike rides and hopes to complete his 15th ride soon. He also enjoys woodworking and DIY home projects. His largest project to date is renovating his master bathroom in which he took down to the studs and remodeled the entire space. Kevin lives in Katy with his wife, 3 kids, and his dog.



Senior Project Manager

"Life moves pretty fast. If you don't stop and look around once in a while, you could miss it." - Ferris Bueller

Lesley Gehrt | Collaborative Engineering Group


As a life-long lover of math and science, engineering was a natural career choice for Lesley. She attended Kansas State University where she received her Bachelors and Masters in Architectural Engineering.  Fresh out of school, Lesley moved to Houston for her first job with a small MEP firm.  She started as an electrical designer working on a variety of projects including retail, restaurants, data centers, and medical facilities.  With extensive experience and a P.E. in electrical engineering under her belt, Lesley was up for a new challenge as a project manager.  Her technical expertise with her drive to deliver quality designs and outstanding customer service makes Lesley a valued CEG project manager.  She takes pride in all projects she is involved with, large or small, and is tenacious in her pursuit of perfection.  In her over 18 years of experience, Lesley has continually shown that she will go above and beyond to meet clients' needs.

In her downtime, Lesley enjoys spending time with her husband and young son.  As a movie buff, she loves sharing the cinema experience with her son.  They are fans of all the Disney movies, especially Finding Nemo!  Sports are also a treasured family tradition in the Gehrt household.  They enjoy watching her son's little league baseball games, cheering on the Astros, and attending every Texans home game.



Senior Project Manager

“Give a man a fish, and you feed him for a day; teach a man to fish and you feed him for a lifetime” - Unknown

Javier Loredo | Collaborative Engineering Group


Javier is an accomplished electrical engineer but actually got his start in a different field. Receiving an Associates degree in Electronics Technology, he began his career, but quickly realized his passion for electrical engineering. He accepted his first electrical engineering job in 2000 and has gone on to specialize in highly technical healthcare projects.  He enjoys the critical system aspects of the projects he works on, and clients praise his organization and attention to detail. 

Born in Monterrey, Mexico, Javier moved to Texas at a young age. He and his beautiful wife (a Texas Children’s Hospital nurse) can be found on the weekends watching their daughter play volleyball and their son play baseball. Javier tries to squeeze in a run, bike ride or a game of sand volleyball whenever possible. He loves sports and is a fan of all of the Houston teams but especially his beloved Astros. Go Stros! 


Senior Project Manager

“Choose a job you love, and you will never have to work a day in your life.” - Confucius

Tim Rocha | Collaborative Engineering Group


Tim has achieved high accolades over his 38 year career. His determination and rock solid work ethic helped Tim get his start and still drive him today. Straight out of high school, he secured a job as a mechanical draftsman, and running and delivering prints (blue prints – remember those?). He transitioned to electrical design after five months and despite doubts and being told he couldn’t succeed on a Texas Children’s Hospital lab project, he completed the project with flying colors and never looked back. Fifteen years later, Tim did another 8 years designing mechanical systems before transitioning to project management.  He specializes in the planning, design and implementation of projects, is a proficient communicator and problem solver, and a valued senior member and leader of the CEG team. A natural leader and our office cheerleader, he freely shares his knowledge with colleagues and is passionate about keeping our clients happy and coming back.

A native Houstonian, Tim enjoys traveling and camping with his family, riding his bike around Houston trails, and cooking (hamburgers and crawfish boils are his specialties). Tim’s love language is coming up with various nicknames for his friends and colleagues. A little known fact about him is that he is color blind (so you know Mrs. Rocha dresses him). He has two mini chihuahuas (he claims belong to only his wife, but we know he secretly loves them too!).


Master Plumber/Plumbing Department Director

"Protecting the health of a nation one project at a time." - Unknown

Kenny George | Collaborative Engineering Group


Kenny George is a licensed Master Plumber with a medical gas endorsement and joined CEG as the Plumbing Department Manager. With over 30 years' experience including owning and operating a commercial plumbing contracting business, Kenny uses his knowledge of how systems are assembled to design plumbing systems that not only work but can be efficiently and cost effectively installed in the field. He has designed projects for Industrial, Medical, Retail, Financial Institutions, Educational, Laboratory, Assisted Living, Student Housing and Restaurants.

Married Renee when both were only 17, they have been happily married for 39 years and reside in Spring, Texas.  They have 3 children - Kenny Jr, Angela, and Chad, and 9 precious grand-kids (5 boys and 4 girls). When time and weather permit, you will find Kenny in the woods camping and enjoying the outdoors.

Garza Jr.

BIM/IT Manager

"When in doubt, reboot."

Cayetano Garza Jr. | Collaborative Engineering Group


Cayetano comes to CEG as the BIM and IT Manager.  With over 22 years of experience, he has seen many changes in the technologies used in the MEP industry.  He started his career as an AutoCAD draftsman, and when Revit came along he was excited to learn the program as it was being introduced to the industry.  Now Autodesk Certified in Revit 2016 and an expert in all things BIM, Cayetano makes sure all AutoCAD and Revit models run smoothly in our office.  He uses his technical skills and boundless patience to assist on our team members on IT issues and BIM questions. 

Cayetano is a family man through and through.  He's been married to his wife Julie for 20 years and has three beautiful children - Mikayla, Cayetano, and Miranda.  You can find him and his family grilling and watching football on Sundays.  A fun fact about Cayetano is that he has a fraternal twin that looks nothing like him!


Construction Administration Director

"There is more happiness in giving than there is in receiving." - Acts 20:35

Jason Perez | Collaborative Engineering Group


Jason got a job with a large mechanical contractor working on commercial HVAC equipment right out of high school. The complexity of the HVAC systems immediately drew Jason in, and he quickly worked his way up to a union journeyman.  After being approached by a MEP firm, Jason welcomed the opportunity to work on the design team side.  The field experience Jason gained while working with contractors has resulted in a greater understanding of design intent and increased quality.

Jason brings over 19 years of experience and dedication to CEG's construction administration department.  Besides his proven ability to effectively manage the construction administration process, Jason is known for his ability to see problems from all sides.  He fully understands both aspects of being a contractor and MEP consultant making him a valuable asset to every project.

Jason has been married to his beautiful wife for 16 years.  Together they have a 13-year old son and two parrots, Mango and Kiwi.  One of their favorite family traditions is going on cruises together. 



“Waste no more time arguing what a good man should be. Be one.” – Marcus Aurelius

Jason  Archer | Collaborative Engineering Group


Jason is a Houston native who grew up on the south side but graduated high school in The Woodlands.  He attended Sam Houston State University earning a Bachelor of Science in Psychology with a perfect GPA.  After a year of graduate school and teaching, he decided to change course.  Graduating from the University of Houston Summa Cum Laude with a degree in Mechanical Engineering, Jason credits his analytic thinking to his grandfather who worked at NASA on the Mercury, Gemini, Apollo and Shuttle programs. 

Golfing with his dad or playing cards and board games keeps him busy during his free time. He also enjoys archery and watching Doctor Who, Green Arrow, and Firefly.



“Great things are not done by impulse, but by a series of small things brought together.” - Vincent Van Gogh

Whitney Carow | Collaborative Engineering Group


Whitney graduated from Colorado School of Mines with a Bachelor of Science in Mechanical Engineering with a minor in Renewable Energy. She joined CEG in 2016 as a mechanical designer and LEED project coordinator.  Her expertise is in sustainable design, energy modeling, and LEED project documentation make her a perfect fit for the role. As our Sustainability Specialist, she enjoys working collaboratively with all disciplines in the office as LEED projects involve mechanical, electrical and plumbing.


Whitney recently relocated to Washington state with her husband, Peter, and their dog, Iggy. They enjoy anything outdoors. This past summer they hiked over 240 miles together. When she’s not hiking, you can find her reading a book, baking, and walking her dog Iggy. She is also enjoys sharing her love of math and science with middle schoolers as a volunteer tutor.


“Don’t ever underestimate the Heart of a Champion!” - Rudy Tomjanovich

David Cho | Collaborative Engineering Group


When David Cho completed his Associates Degree, he came to CEG seeking to gain experience - he even offered to work for free!  Starting as a blank slate he has flourished into an essential component of the CEG Team!

Eager to become a proficient Electrical Designer, David is currently under the tutelage of the expert engineers in the Electrical Department.  When he’s feeling ambitious and adventurous, he will even take on mechanical and plumbing design. He’s often referred to as CEG’s Swiss Army knife.

David loves to play and watch basketball and football, but his friends and family are second to none.  Although he’s quiet most of the time, David keeps the office on their toes with his subtle sense of humor.


"In three words I can sum up everything I have learned in life: it goes on." - Robert Frost

Scott Clark | Collaborative Engineering Group


Scott grew up in Houston’s Spring Branch area and his first job was working in a foundry melting steel at 3,000 degrees until he decided there had to be a better way to make a living. To this day, he still sports scars from that job, and is thankful he accepted an electrical designer position from a neighbor almost 20 years ago on a whim. Scott is enthusiastic about what he does and finds fulfillment in the challenging projects he is tasked with. Focusing on all things electrical, power, and distribution, Scott is king of the details and has developed a specialty in data center work.  

Scott married his beloved wife in Vegas 19 years ago (With Elvis in attendance), and their free time is mostly spent in bleachers watching their high school age son Brady play tournament baseball. Scott (AKA Clark Griswold) is known for his annual Christmas light displays at his house, proudly utilizing six dedicated circuits and three timers. His family has five dogs - three of them are rescues. Dynamite is his favorite whom he lovingly administers insulin to every night, but don’t let Hollywood, Macy, Brie or Maggie hear that - they all are pretty sure they’re Scott’s favorite. 


"The world treats winners a lot different than it treats losers." - Augie Garrido

Marcos Fernandez | Collaborative Engineering Group


From a very early age, Marcos found himself intrigued by how things worked. He loved to take his electric toys apart and reassemble them to see if they would still work. (Most of the time they did!) He has an aptitude for understanding how electrical and mechanical components operate, which led him to a career in the MEP field. He has been designing electrical for the last five years. In that time, he has worked on numerous healthcare and university projects. He is known for being great at coordinating with other disciplines and his Revit knowledge is endless.

When he’s not working, he enjoys tinkering on cars, hanging out with friends, and playing video games with his kids Christian and Emma.



“Hook’em Horns!”

Juana Garcia | Collaborative Engineering Group


Juana graduated from the University of Texas at Austin with a Bachelor of Science in Architectural Engineering (chosen because of her love of architecture and her amazing math and science skills). After completing an internship with CEG in 2012, she decided to change her technical electives from structural to HVAC design.  Since joining CEG in 2015, she has demonstrated her technical expertise on a broad spectrum of projects including performing arts venues, educational, worship, multifamily, and entertainment facilities.  While she especially enjoys the challenges of acoustically sensitive spaces like performing arts venues, she has experience in complex renovation projects with difficult existing conditions.

Juana enjoys traveling and has achieved her goal of visiting all seven wonders of the world before she turned 30!  She also loves watching reruns of The Office and cheering on the Texas Longhorns!


"All limitations are self-imposed." - Oliver Wendell Holmes

Paul  Garza | Collaborative Engineering Group


New to the MEP industry, Paul became interested in design when his uncle, who is also in the MEP industry, told him about all of the unique jobs he had worked on all over the U.S.  He has worked on numerous project types including churches, parking garages, and commercial buildings.  He is detail oriented, a team player, and collaborates well with his coworkers.  A member of ASPE, Paul is a fast learner and hopes to increase his knowledge of plumbing design from his highly skilled and experienced coworkers.

Paul comes from a family of musicians and has been playing the guitar since he was nine years old.  He has even traveled all over the US, Central America, and some of South America with a touring artist.  He now serves at his local church on staff as a musician and also plays gigs all around town.  When he can find time, he enjoys taking a backseat and producing music for other artists.  His beautiful wife Elyssa and daughter Camila inspire him to work hard and provide for his family.

Kenny Jr.

“Keep your life free from love of money, and be content with what you have, for he has said, "I will never leave you nor forsake you." - Hebrews 13:5 ESV

Kenny Jr. George | Collaborative Engineering Group


Kenny George Jr. has over 19 years of experience designing and managing the construction of plumbing systems. He understands the codes related to, and the intricacies involved with, plumbing installation. While he has worked on numerous projects over the years, his favorite is St. Helen’s, the first job he designed.  

He is happily married to his wife Brandi and has five children that keep him busy. When he’s not behind a computer or at a job site, Kenny enjoys shooting some hoops with his kids or attending sporting events.


“The price of anything is the amount of life you exchange for it.” Mark Twain

George Henningsen | Collaborative Engineering Group


Born and raised in Arkansas, George moved to Houston in 1975. He started as a cabinet maker when his hand lettering got noticed by a local MEP firm. George was hired on as a draftsman, but through tenacity and grit he quickly became an electrical designer.  George has over 39 years of experience in the MEP industry. To this day, he still gets a great sense of satisfaction from a job well done. His easy-going nature and level headedness makes George an exceptional collaborator with the other disciplines in the office, clients, and owners. While lighting and fire alarm are George’s specialty, his extensive industry experience means he’s a great resource for all things electrical.

In true engineering fashion, George loves tinkering around his house. He recently used his woodworking skills to make all of the cabinets for his bathroom remodel. His skills extend beyond woodworking, to bicycle construction. George designs and constructs his own bicycles. He enjoys cycling and has completed the MS150 seven times. George has been married to his loving wife, Donna, for 38 years. They love to travel together. Their favorite destination has been South Africa!


"The best preparation for tomorrow is doing your best today" - H. Jackson Brown Jr.

James Lee | Collaborative Engineering Group


James is an energetic and driven mechanical engineer.  In his over 30 year career, he has designed many complicated and challenging projects including healthcare facilities, laboratories, data centers and central plants.  He received a Bachelor of Science in Mechanical Technology from the University of Houston.  Proficient in both energy modeling and Revit, James uses these skills to design state of the art mechanical systems.  His attention to detail and creative problem solving helps him to deliver quality projects that exceed client expectations.  

To relax and maintain a healthy life balance, James practices Tai Chi.  Another hobby is building vintage model airplanes and armory.  James was born in Hong Kong and relocated to Houston in the mid 1970’s.  He and his wife have two grown children – a future pharmacist and future physician. 


"The fewer the lines, the more important each line." - Pablo Picasso

Glen Mallory | Collaborative Engineering Group


Glen is a lively and hard-working senior plumbing designer. He understands the importance of communicating with the client and other disciplines on a project, and he prides himself on his attention to detail. In his 20 years of experience, Glen has designed health care, laboratories, higher education, and multi-use buildings.  His advanced skill set helped him become an ASPE Certified Plumbing Designer (CPD).

Glen grew up in the Brazosport area, but has lived in Houston for over 22 years. Glen is recently married to his wife Chasity and has two awesome children. Glen and his wife enjoy weekly date nights, but also enjoy lots of family time including a weekly family cooking night, throwing the ball around, games, hiking and biking. He’s an outdoor enthusiast who also enjoys vacationing in Big Bend and Rocky Mountain National Parks, Lake Tahoe, New York and California.


"Education is not the learning of facts, but the training of the mind to think" - Albert Einstein

Al Ovalle | Collaborative Engineering Group


Al comes to CEG with 20 years of mechanical design experience. He got his start in the MEP world as a building engineer. Now, he uses his hands-on knowledge of building systems to design sensible and smart mechanical systems. Always eager to collaborate with others and tackle design challenges, Al has worked on a large variety of projects including commercial offices, healthcare and educational facilities. While mechanical design is his specialty, Al’s extensive field experience means he can be depended upon to help with mechanical, electrical, or plumbing especially during construction. 

 Like a true Texan, Al can be found hanging out with his BBQ team on the weekends cooking up some brisket. He also enjoys relaxing by the lake with his wife of 19 years, his daughter, 2 dogs, 5 turtles, and parrot Charlie - although lately Charlie has to stay home because he talks too much!


“Time you enjoyed wasting was not wasted.” – John Lennon

Kaycee Sandoval | Collaborative Engineering Group


Kaycee prides herself on being the entertainment for the office and never passes up a chance to make others laugh.  When she is being serious, she is responsible for planning, directing, and coordinating all marketing efforts for the company.  She is also responsible for coordinating the clerical and administrative aspects of each engineering project in order to ensure smooth execution.  Her exceptional organizational skills (and occasional nagging) keep the team focused and on track to meet our deadlines. 

Kaycee recently graduated Summa Cum Laude from the University of Houston and earned a Bachelor of Science in Retailing and Consumer Science.  Kaycee has been married to her husband Josh for almost seven years and they have one daughter, Maryn.  She enjoys watching anything Bravo related, doing home improvement projects with her husband, and having a cocktail or two (poolside of course).


....."I'm not from anywhere... I never left!"

Jim Sulzer | Collaborative Engineering Group


Jim, a native Houstonian, began his career in network cabling infrastructure and basic computer and phone setup.  A previous employer noticed his hard work and eagerness to learn and offered him a position designing low voltage systems.  With 16 years of experience under his belt, Jim is now our go to guy because of his exceptional efficiency and attention to detail.  He has extensive experience in a wide variety of commercial and residential projects including casinos, high-rise condominiums, event and convention centers, and high-rise public office buildings.

In his free time, Jim enjoys playing golf and has recently renewed his love of motorcycling.  When not entertaining his 6 children, Jim and his wife of 20 years try to fit in some road time every weekend that the weather permits.


“You must be the change you wish to see in the world.” - Mahatma Gandhi

Taylor  Thoms | Collaborative Engineering Group


Taylor recently graduated from Mississippi State with a Bachelor of Science in Mechanical Engineering. At school, she was a member of Delta Gamma Sorority and worked with the MSU Alumni Association. After a summer of interning with an MEP firm in Mississippi, Taylor discovered she loved HVAC design. She enjoys using her technical skills and critical thinking to create sophisticated mechanical systems.

After graduating, Taylor decided she was ready for a change and wanted to try big city living in Houston. She loves that there's always something going on in the city and the amazing food Houston has to offer. When she's not off exploring her new home, you can find Taylor curled up on the couch with a good book or binging on the latest Netflix show.



“Life is like riding a bicycle. To keep your balance, you must keep moving.” – Albert Einstein

Edwin  Torres | Collaborative Engineering Group


Edwin graduated Cum Laude from Texas A&M University with a Bachelor of Science in Mechanical Engineering. His passion for energy and power generation inspired him to choose HVAC as his capstone project and pursue a career in the MEP industry.  Edwin has worked on various project types since starting at CEG including office spaces, educational facilities, and performing arts buildings.  His flexibility and creativity allow him to thrive in any project assigned to him. Edwin's attention to detail, flexibility, and ability to be pragmatic when faced with challenges makes him a valuable part of our team.  

Outside of work, Edwin enjoys traveling the world.  Originally from Venezuela, he was exposed to international travel from an early age and speaks three languages!  He has a deep passion for cooking which he developed alongside his mother who is a gourmet chef.  He enjoys sharing different foods with us in the office and we don't mind!   When not in the kitchen, Edwin enjoys hiking, climbing, swimming, and playing tennis.


"Happiness isn’t something you get from life, it’s something you bring to it." - My Dad

Wendy Vinca | Collaborative Engineering Group


Wendy Vinca received an Associates of Applied Science degree in Electrical Engineering from Stark State College of Technology and  continued her studies at University of Akron in electrical engineering.  Early in her career, she focused on industrial automation applying her expertise to improve efficiency and processes at Delphi Automotive in Michigan.  An Ohio native, she got to Texas just as fast as she could!  Landing in Dallas, she continued to apply her automation skills until the arrival of her son.   Through a chance social meeting, Wendy moved into the MEP industry. Always eager to expand her knowledge and expertise, Wendy took as many classes as she could in design software such as Solid Works, AutoCAD and Revit.  While she primarily functions as our Construction Administration Manager, she will kindly step in as a designer when needed.

 In her free time you might find her painting, playing tennis, or spending time with her children and grandson.