Zymergen, Series Seed and Series A led by DCVC, Raises $400M+ Series C: Revolutionizing global industry through molecular manufacturing
By Matt Ocko & Zack Bogue 12.14.18
DCVC has doubled down on our investment in Zymergen, the world’s first molecular manufacturing company, able to understand and reliably program biological systems to produce existing and new materials at molecular precision, for up to million metric ton scale and beyond. With over half a billion dollars of Zymergen-driven products shipped in the last 12 months alone by global F1000 companies, Zymergen’s success is not a question for us anymore of “how will they do it?” but of “how dominant can they get?”
By leveraging advances in artificial intelligence, robotic lab automation, and cutting-edge genomics, Zymergen has unlocked previously inaccessible sources of molecular diversity for critical industries around the world. With its proprietary technology platform, the company makes novel and improved molecules to meet the greatest needs of global leaders in manufacturing, specialty chemicals, food and agriculture, electronics, and pharmaceuticals. Zymergen delivers its customers material diversity and performance capabilities not previously possible by rapidly, reliably, and cost-effectively engineering biology. Today, Zymergen is enabling real-world product outcomes for Fortune 1000 customers that are orders of magnitude greater than any other similar approach, at 100,000 metric ton and greater scales. And, as a material additional benefit, Zymergen’s transformation of industrial processes very often reduces greenhouse gas emissions and toxic byproducts by very large amounts.
To achieve these results, Zymergen uses artificial intelligence algorithms and robotic genomic “factories” to search the microbial genome, running tens of thousands of experiments to spot subtle signals of improvement. The platform then analyzes these signals to identify paths that no human scientist could ever discover, enabling Zymergen to optimize molecules for specific traits. Zymergen’s platform routinely accomplishes inside a year, in a single building, with a few hundred people, what would take thousands of scientists and specialists a decade, in square miles of facilities, and billions of dollars of spend. Zymergen enables its globally leading customers to deliver new and existing products faster, more profitably, at higher quality, with a dramatically reduced environmental footprint, all on a repeatable basis.
Harnessing microorganisms for human purposes isn’t a new practice; fermentation emerged in 7000 BC in China, where local brewers mixed rice, honey, and hawthorn fruit to make alcohol. We still use yeast to ferment our favorite drinks, but microbes have slipped into many other products as well. The glass of milk you drank this morning was safe thanks to microbes, and some of the pills your doctor prescribes wouldn’t exist without them. Industrial microbes – microbes that manufacture useful things - are key components in the food and beverage industry, medicine production, and chemical manufacturing.
Microbes and fermentation played a role in making all of these products
Industrial microbiology is a multi-billion dollar market, and tens of thousands of scientists and experts continuously work to improve the microbes they use. Microbiologists have traditionally made better microbes by:
a. selecting and cultivating the best-performing strains,
b. inducing mutations in the hope that some mutations would be helpful, or more recently,
c. manipulating the microbial genome.
Cultivating microbes was the only improvement process available until the 1940s, when scientists jumpstarted the science of “strain selection” while scaling penicillin production. The first high-performing strain they selected nearly tripled penicillin secretion from 60 micrograms per milliliter to 150. They exposed later strains to x-ray and ultraviolet radiation, which eventually led to the Wisconsin family of microbes that manufactures most penicillin today.
Careful selection and radiation exposure alone prompted a hundredfold increase in Penicillium chrsyogenum’s productive capabilities - an impressive feat. But after decades of repeated use for this and a host of other applications (many involving yeast), selective curation and uncontrolled mutation became less effective tools.
Scientists began searching for ways to manipulate the bacterial and yeast genomes directly with genetic engineering tools. This process, even with deep genome sequencing, proteomic tools for understanding what molecules genomes produce, and some improvements in automation and lots of computer power, turned out to take the best companies in the world years if not decades and billions of dollars.
The problem is our incomplete knowledge of which microbial genes influence which characteristics that can be tuned in microorganisms to produce human useful molecules while leaving the living systems viable and able to reproduce. Unfortunately, as this influential Zymergen blog post explains, “all microbes have significant (25%+) ‘dark regions’ in their genomes in which the functions of constituent genes are completely unknown.” Finding the right portion of microbial DNA to manipulate is a shot in the dark, and even F1000 companies full of smart folks have met with failure on many key projects.
Our bacterial (and similarly, fungal/yeast) genome map is patchy in part because of its unbelievable size. Conservative estimates of the design space - “all the combinations of all the base pairs in a microbe’s DNA” – are around 4 raised to the power of 3,000,000. This volume of possible combinations prevents even the most skilled microbiologist, or entire teams of them, from knowing how genetic changes will impact bacteria. Even with the increasing pace of genetic research, the sheer size of this space means that much of it will remain uncharted for decades.
Zymergen is sidestepping this enduring knowledge gap by having algorithms (not scientists) make and test hypotheses about microbe performance. Their AI software sends experiment instructions to an automated robotic platform, which carries out the experiments and sends the results back to the software. The results of past experiments determine which genes are edited in future ones, in a powerful closed loop learning process that is well suited to deep learning innovation. This platform significantly reduces human error and carries out experiments more than 1000 times faster than a researcher could manually perform, even a large team of researchers.
Zymergen’s scientists do not have to know in advance how each genetic change influences the microbes. To quote Zymergen CTO Aaron Kimball: “We get paid because it works, not because we understand why”. This outcome-oriented approach – delivered on a high-speed, heavily automated, repeatable, and verifiable platform –puts Zymergen years (if not decades) ahead of their competition.
Even a few years ago, Zymergen’s automated labs were 10-100x smaller, with 10x less staff
Zymergen was founded in 2013 by Josh Hoffman, Dr. Zach Serber, and Dr. Jed Dean. They had all seen large-scale engineering problems in the course of their work: Josh’s as an elite industry consultant at McKinsey and global investment banks, Zach’s as a synthetic biologist, and Jed’s as an automation engineer in the life sciences. The three of them created Zymergen to solve those problems. They aimed to overcome industrial microorganism efforts’ inaccessibly huge design space, large knowledge gaps, and costly drawbacks of human error. Zymergen has solved these microbe engineering problems, and it is enabling massive progress in a related field as well: materials science.
Zymergen is using the microbe genome as a search space for new biomanufacturable chemicals and materials. They call these molecules “bioreachables”, and the databases they’ve built on microbe metagenomics and bioreachables are the world’s largest. Zymergen is working with materials scientists in industry and academia to search the thousands of new molecules they’ve discovered for the most promising commercial candidates.
Zach Serber, Zymergen’s CSO and co-founder, knows that biomanufacturing will shape the future of materials science. He explains that biomanufacturing is better at making certain molecules than petroleum-based processes, which are used in many common materials. For example, biological processes are better at producing:
a) chiral molecules of a particular orientation,
b) molecules made of non-hydrocarbon atoms, and,
c) polymers with diverse chemically reactive groups.
Chiral molecules are asymmetric – their mirror image cannot be transposed on the original. The original and mirror image are called left-hand and right-hand molecules. Chemical manufacturing usually results in an equal distribution of left- and right-hand molecules. Biological manufacturing normally makes only one or the other. This is important because chirality influences how molecules act in a biological setting. Aspartame, the artificial sweeter in Equal and NutraSweet, would taste bitter if you somehow ate the wrong chiral molecule. In a more serious situation, the left-hand molecule of some drugs is beneficial, while the right-hand molecule is poisonous.
Purifying chiral molecules after chemical manufacturing is an expensive process, with purified products sometimes costing a thousand times more than the original mixture. Biomanufacturing makes purification unnecessary because it only produces one type of chiral molecule. Chirality is also important in materials science. PLA, a biodegradable plastic popular in disposable tableware, has thermal and mechanical properties that change significantly with its distribution of chiral molecules. Biological manufacturing makes the selective production of chiral molecules an easier, cheaper process.
The molecular building blocks – monomers – which biomanufacturing creates are much more diverse than those derived from petroleum: petroleum-based materials are all hydrocarbons, while microbes can build molecules with non-hydrogen, non-carbon atoms like oxygen, sulfur, nitrogen, and chlorine. These are called heteroatoms. More diverse chemistry opens the door for materials with better properties than some incumbents. For instance, optical fibers based on hydrocarbons are mediocre at bending light because their molecules are not electron dense. Biomanufacturing can shape heteroatoms into more electron dense polymers for fiber optic communications, for example.
These diverse monomers can join together to make more sophisticated polymers than those manufactured chemically. Biomanufacturing, as enabled by Zymergen, lets you make “complex molecules capable – in a single entity – of performing distinct chemical reactions”. Each monomer in the polymer chain can have unique, asymmetric reactive sites – moieties – which provides greater control of polymer length, the ability to cross-link, and the option to give the polymer specific chemical properties. Biological monomers can also organize in complex 3-dimensional structures, which can make otherwise inert polymers more functional. This palette of additional chemistries creates endless opportunities.
Since 2013, Zymergen has discovered over 4,000 bioreachable molecules, every one of which is a candidate for novel products and materials. They have developed more than 20 new monomers that outperform those produced synthetically, and which cannot be produced synthetically themselves. Zymergen is working with DARPA to design 360 new molecules for applications like durable coatings and polyimide films for flexible electronics. They’re also designing thermostable plastics, surgical glue, and wet surface adhesives based on the chemical mussels use to adhere themselves to ships. Zymergen’s other customers hail from the global Fortune 500 across a wide range of industries, but strict confidentiality agreements preclude discussing specific projects. We can say they span food, pharmaceuticals, specialty chemicals, agriculture, electronics, and consumer products.
Zymergen’s success to-date isn’t surprising – customers typically “save between 3 and 5 times their development costs” and potentially many years of market-entry by enlisting Zymergen to solve their “engineering biology” problems. Zymergen’s ability to optimize existing microbes for customers is excelling as well. “We’ve been able to show … as much as four to five times as much improvement as companies themselves, using the old ways, have been able to achieve in a decade,” said CEO Josh Hoffman. Recently, work Zymergen did with a Fortune 50 customer improved that company’s earnings by more than 1% in 18 months. This may not sound like much, but when your annual revenue is at least $60 billion, 1% is nothing to scoff at.
Zymergen’s promise is that, once they discover a new material, they can immediately optimize its industrial microbe to a production level suited for full-scale manufacturing. Their optimization platform can do in months what multi-billion dollar companies have to date been unable to do in decades. Zymergen’s large-scale automation of cognitive/research and physical processes has slashed costs and development times as well. Their development process is 5 to 10 times faster than the industry standard and costs 1/100th to 1/1000th of what industry-leading companies spent before Zymergen re-set the benchmark. This automated, end-to-end, self-optimizing design and production loop is exactly why we led Zymergen’s Seed and Series A investment rounds, and continue to strongly back the company.
We covered many of our motives for supporting Zymergen when we wrote about them previously, but we’ll reiterate them here: Zymergen’s world-class team, defensible technological lead, and dedication to self-optimizing processes make them a company that can transform modern industry on a global basis. The scale of Zymergen’s data (and their application of it) have them primed for success, and their innovations are set to change not just one, but several giant industries. The impact this company will have on materials science and manufacturing cannot be overstated. We’re proud to support Zymergen as they further scale their molecular manufacturing platforms, and we’re excited to see them change global industry and human quality of life along with it in the years to come.